ARID WEST REGION - NWPL 2016 FINAL RATINGS User Notes: 1) Plant species not listed are considered UPL for wetland delineation purposes. 2) A few UPL species are listed because they are rated FACU or wetter in at least one Corps region.

Scientific Name Common Name Status Scientific Name Common Name Status Scientific Name Common Name Status

Abies amabilis Pacific Silver Fir FACU Agrostis idahoensis Idaho Bent FACW Amaranthus crassipes Spreading Amaranth FAC Abies bifolia Rocky Mountain Alpine Fir FACU Agrostis lacuna-vernalis FACW Amaranthus obcordatus Trans-Pecos Amaranth FACU Abies grandis Grand Fir FACU Agrostis mertensii Northern Bent FACU Amaranthus palmeri Careless Weed FACU Abies lasiocarpa Subalpine Fir FACU Agrostis microphylla Small-Leaf Bent FACW Amaranthus retroflexus Red-Root FACU Abies procera Noble Fir FACU Agrostis oregonensis Oregon Bent FACW Amaranthus spinosus Spiny Amaranth FACU Abutilon theophrasti Velvetleaf UPL Agrostis pallens Seashore Bent FACU Amaranthus tuberculatus Rough-Fruit Amaranth FACW Acanthomintha ilicifolia San Diego Thorn-Mint FAC Agrostis pauzhetica Thermal Bent FACU Amaranthus viridis Slender Amaranth FAC Acer circinatum Vine Maple FAC Agrostis perennans Upland Bent FAC Amaranthus watsonii Watson's Amaranth FACW Acer glabrum Rocky Mountain Maple FAC Agrostis rossiae Ross' Bent FAC Amblyopappus pusillus Dwarf Coastweed FACW Acer grandidentatum Canyon Maple FACU Agrostis scabra Rough Bent FAC Ambrosia artemisiifolia Annual Ragweed FACU Acer macrophyllum Big-Leaf Maple FAC Agrostis stolonifera Spreading Bent FACW Ambrosia monogyra Needle-Leaf Burrobush UPL Acer negundo Ash-Leaf Maple FACW Ailanthus altissima Tree-of-Heaven FACU Ambrosia psilostachya Perennial Ragweed FACU Acer platanoides Norway Maple UPL Aira caryophyllea Common Silver-Hair Grass FACU Ambrosia pumila Dwarf Burr-Ragweed FACU Acer saccharinum Silver Maple FAC Aletris farinosa White Colicroot FAC Ambrosia trifida Great Ragweed FAC Acer saccharum Sugar Maple FACU Alhagi maurorum Camelthorn FAC Amelanchier alnifolia Saskatoon Service-Berry FACU Achillea millefolium Common Yarrow FACU Aliciella pinnatifida Sticky Cheat Gily-Flower FACU Amelanchier arborea Downy Service-Berry FACU Achillea ptarmica Pearl Yarrow FACU Alisma gramineum Narrow-Leaf Water-Plantain OBL Amelanchier cusickii Cusick's Service-Berry FACU Achnatherum diegoense San Diego Rice Grass FACW Alisma lanceolatum Lance-Leaf Water-Plantain OBL Amelanchier utahensis Utah Service-Berry FACU Achnatherum hymenoides Indian Rice Grass UPL Alisma triviale Northern Water-Plantain OBL Ammannia auriculata Eared Redstem OBL Achnatherum nelsonii Nelson's Rice Grass FACU Allenrolfea occidentalis Iodinebush FACW Ammannia coccinea Valley Redstem OBL Achnatherum richardsonii Richardson's Rice Grass UPL Alliaria petiolata Garlic-Mustard FACU Ammannia robusta Grand Redstem OBL Achyrachaena mollis Blow-Wives FAC Allium bisceptrum Aspen Onion FACU Ammophila arenaria European Beach Grass FACU Acmispon americanus American Deerweed UPL Allium cernuum Nodding Onion FACU Ammophila breviligulata American Beach Grass FACU Aconitum columbianum Columbian Monkshood FACW Allium douglasii Douglas' Onion FAC Amorpha californica California Indigo-Bush FAC Aconitum infectum Arizona Monkshood FACW Allium geyeri Geyer's Onion FACU Amorpha fruticosa False Indigo-Bush FACW Aconogonon phytolaccifolium Alpine Fleeceflower FAC Allium hickmanii Hickman's Onion FACU Amorpha nana Fragrant Indigo-Bush FACU Acorus americanus Several-Vein Sweetflag OBL Allium hyalinum Glassy Onion FACU Ampelopsis arborea Peppervine FAC Acorus calamus Single-Vein Sweetflag OBL Allium lemmonii Claybank Onion FACU Ampelopsis cordata Heart-Leaf Peppervine FAC Actaea rubra Red Baneberry FAC Allium madidum Swamp Onion OBL Amphicarpaea bracteata American Hog-Peanut FACW Adiantum aleuticum Aleutian Maidenhair FAC Allium schoenoprasum Wild Chives FACW Amsinckia spectabilis Woolly-Breeches FACU Adiantum capillus-veneris Southern Maidenhair FACW Allium validum Tall Swamp Onion OBL Anaphalis margaritacea Pearly-Everlasting FACU Adiantum jordanii California Maidenhair FAC Allium vineale Crow Garlic FACU Andromeda polifolia Bog-Rosemary OBL Adoxa moschatellina Muskroot FAC Allolepis texana Texas-Salt FAC Andropogon gerardii Big Bluestem FACU Aegopodium podagraria Bishop's Goutweed FAC Allophyllum gilioides Dense False Gily-Flower FAC Andropogon glomeratus Bushy Bluestem FACW Agalinis calycina Leoncita False Foxglove OBL Almutaster pauciflorus Marsh-Aster FACW Andropogon virginicus Broom-Sedge FAC Agalinis tenuifolia Slender-Leaf False Foxglove FACW Alnus glutinosa European Alder FACW Androsace chamaejasme Sweet-Flower Rock-Jasmine FACU Agastache urticifolia Nettle-Leaf Giant-Hyssop FACU Alnus incana Speckled Alder FACW Androsace filiformis Slender-Stem Rock-Jasmine FACW Agave americana American Century-Plant UPL Alnus oblongifolia Arizona Alder FACW Androsace occidentalis Western Rock-Jasmine FACU Agave sisalana Sisal-Hemp UPL Alnus rhombifolia White Alder FACW Androsace septentrionalis Pygmy-Flower Rock-Jasmine FACU Ageratina adenophora Crofton Weed FACU Alnus rubra Red Alder FACW Anemone canadensis Round-Leaf Thimbleweed FAC Ageratum conyzoides Tropical Whiteweed FACU Alnus viridis Sitka Alder FACW Anemone narcissiflora Narcissus-Flower Thimbleweed FAC Ageratum houstonianum Bluemink FACU Alocasia macrorrhizos Giant Taro FACW Anemone oregana Blue Windflower FACU Agoseris X agrestis FAC Alopecurus aequalis Short-Awn Meadow-Foxtail OBL Anemone parviflora Small-Flower Thimbleweed FACW Agoseris X elata FAC Alopecurus arundinaceus Creeping Meadow-Foxtail FAC Anemone piperi Piper's Windflower FACU Agoseris aurantiaca Orange-Flower Goat-Chicory FAC Alopecurus carolinianus Tufted Meadow-Foxtail FACW Anemopsis californica Yerba-Mansa OBL Agoseris glauca Pale Goat-Chicory FACU Alopecurus geniculatus Marsh Meadow-Foxtail OBL Angelica ampla Giant Angelica FACW Agoseris monticola FAC Alopecurus magellanicus Alpine Meadow-Foxtail FACW Angelica arguta Lyall's Angelica FACW Agoseris parviflora Small-Flower Goat-Chicory FACU Alopecurus myosuroides Slender Meadow-Foxtail FACW Angelica dawsonii Dawson's Angelica FACW Agrimonia gryposepala Tall Hairy Grooveburr FAC Alopecurus pratensis Field Meadow-Foxtail FACW Angelica genuflexa Kneeling Angelica FACW Agrimonia parviflora Harvestlice FAC Alopecurus saccatus Pacific Meadow-Foxtail OBL Angelica kingii Basin Angelica FACW Agrimonia striata Woodland Grooveburr FACU Alternanthera philoxeroides Alligator-Weed OBL Angelica lucida Seacoast Angelica FAC Agrostis capillaris Colonial Bent FAC Amaranthus acanthochiton Greenstripe FACU Angelica pinnata Small-Leaf Angelica FACW Agrostis elliottiana Elliott's Bent FACU Amaranthus albus Tumbleweed FACU Anoda cristata Crested Anoda FAC Agrostis exarata Spiked Bent FACW Amaranthus arenicola Sandhill Amaranth FACU Antennaria alpina Alpine Pussytoes FACU Agrostis gigantea Black Bent FACW Amaranthus blitoides Mat Amaranth FACU Antennaria arcuata Meadow Pussytoes FACW Agrostis hendersonii Henderson's Bent FACW Amaranthus blitum Purple Amaranth FAC Antennaria corymbosa Flat-Top Pussytoes FAC Agrostis hyemalis Winter Bent FACW Amaranthus californicus California Amaranth FACW Antennaria media Rocky Mountain Pussytoes FAC Antennaria neglecta Field Pussytoes FACU Asarum lemmonii Lemmon's Wild Ginger OBL Atriplex pusilla Smooth Saltbush FAC Antennaria pulchella Sierran Pussytoes FAC Asclepias curassavica Bloodflower FAC Atriplex rosea Tumbling Orache FACU Antennaria pulcherrima Showy Pussytoes FACU Asclepias fascicularis Narrow-Leaf Milkweed FAC Atriplex semibaccata Australian Saltbush FAC Antennaria umbrinella Brown-Bract Pussytoes FACU Asclepias incarnata Swamp Milkweed OBL Atriplex serenana Bracted Saltbush FAC Anthemis cotula Stinking Chamomile FACU Asclepias oenotheroides Zizotes Milkweed FACU Atriplex spinifera Spinescale FAC Anthoxanthum hirtum Northern Sweet Vernal Grass FACW Asclepias pumila Low Milkweed UPL Atriplex suberecta Peregrine Saltbush FACU Anthoxanthum odoratum Large Sweet Vernal Grass FAC Asclepias speciosa Showy Milkweed FAC Atriplex torreyi Torrey's Saltbush FACU Anticlea elegans Mountain False Deathcamas FACU Asclepias subverticillata Horsetail Milkweed FACU Atriplex tridentata Basin Saltbush FACW Anticlea occidentalis Western False Deathcamas FACW Asclepias syriaca Common Milkweed FACU Atriplex truncata Wedge-Leaf Orache FACU Anticlea vaginata Sheathed False Deathcamas FAC Asclepias texana Texas Milkweed FACU Atriplex tularensis Bakersfield Saltbush FAC Anticlea virescens Green False Deathcamas FACU Asclepias verticillata Whorled Milkweed FACU Atriplex vallicola Lost Hills Saltbush FACW Antigonon leptopus Queen's-Jewels FAC Asparagus officinalis Asparagus FACU Atriplex watsonii Watson's Saltbush FACW Apiastrum angustifolium Mock Parsley UPL Asperugo procumbens German-Madwort UPL Atriplex welshii Welsh's Saltbush FACU Aplectrum hyemale Adam-and-Eve FAC Asplenium adiantum-nigrum Black Spleenwort FACU Avena sativa Oat UPL Apocynum androsaemifolium Spreading Dogbane UPL Asplenium platyneuron Ebony Spleenwort FACU Avicennia marina Gray Mangrove OBL Apocynum cannabinum Indian-Hemp FAC Asplenium trichomanes Maidenhair Spleenwort FAC Axonopus compressus Broad-Leaf Carpet Grass FACW Aponogeton distachyos Cape-Pondweed OBL Astragalus agrestis Cock's-Head FAC Axonopus fissifolius Narrow-Leaf Carpet Grass FAC Aquilegia caerulea Colorado Blue Columbine FACU Astragalus alpinus Alpine Milk-Vetch FAC Azolla cristata Crested Mosquito Fern OBL Aquilegia chrysantha Golden Columbine FAC Astragalus americanus American Milk-Vetch FAC Azolla filiculoides Large Mosquito Fern OBL Aquilegia eximia Van Houtte's Columbine OBL Astragalus argophyllus Silver-Leaf Milk-Vetch FACW Azolla microphylla Mexican Mosquito Fern OBL Aquilegia formosa Crimson Columbine FAC Astragalus bodinii Bodin's Milk-Vetch FACW Baccharis glutinosa Douglas' False Willow FACW Aquilegia longissima Long-Spur Columbine FACW Astragalus canadensis Canadian Milk-Vetch FAC Baccharis neglecta Roosevelt-Weed FAC Arabidopsis lyrata Lyre-Leaf Thalecress FACU Astragalus clevelandii Cleveland's Milk-Vetch FAC Baccharis salicifolia Mule's-Fat FAC Arabis crucisetosa Cross-Hair Eared Rockcress FAC Astragalus diaphanus Transparent Milk-Vetch FACU Baccharis salicina Great Plains False Willow FACW Arabis eschscholtziana Pacific-Coast Eared Rockcress FACU Astragalus diphysus Speckle-Pod Milk-Vetch UPL Baccharis sarothroides Rosinbush FACU Arabis pycnocarpa Hairy Eared Rockcress FACU Astragalus diversifolius Meadow Milkvetch FAC Baccharis sergiloides Squaw's False Willow FACU Aralia californica California Spikenard FACW Astragalus eucosmus Elegant Milk-Vetch FACU Baccharis wrightii Wright's False Willow FACU Aralia nudicaulis Wild Sarsaparilla FACU Astragalus hornii Horn's Milk-Vetch FAC Bacopa eisenii Gila River Water-Hyssop OBL Aralia racemosa American Spikenard FAC Astragalus lemmonii Lemmon's Milk-Vetch FACW Bacopa monnieri Herb-of-Grace OBL Arctium minus Lesser Burrdock FACU Astragalus lentiginosus Freckled Milk-Vetch UPL Bacopa repens Creeping Water-Hyssop OBL Arctostaphylos uva-ursi Red Bearberry FACU Astragalus leptaleus Park Milk-Vetch OBL Bacopa rotundifolia Disk Water-Hyssop OBL Arctous ruber Red Torpedoberry FAC Astragalus limnocharis Cedar-Breaks Milk-Vetch OBL Bambusa vulgaris Feathery Bamboo FACU Arenaria lanuginosa Spreading Sandwort FACU Astragalus phoenix Ash Meadows Milk-Vetch FACU Barbarea orthoceras American Yellow-Rocket FACW Arenaria paludicola Marsh Sandwort OBL Astragalus pycnostachyus Marsh Milk-Vetch OBL Barbarea vulgaris Garden Yellow-Rocket FAC Arenaria serpyllifolia Thyme-Leaf Sandwort FACU Astragalus robbinsii Robbins' Milk-Vetch FAC Barkleyanthus salicifolius Barkley's-Ragwort FAC Arida arizonica Common Desert Tansy-Aster FACU Astragalus tener Alkali Milk-Vetch FACW Bassia hirsuta Hairy Smotherweed OBL Arida carnosa Shrubby Alkali Desert Tansy-Aster Athyrium americanum American Alpine Lady Fern FAC Bassia hyssopifolia Five-Horn Smotherweed FACU OBL Athyrium angustum Northern Lady Fern FAC Bassia scoparia Mexican-Fireweed FAC Aristida dichotoma Church-Mouse Three-Awn FACU Athyrium cyclosorum Western Lady Fern FAC Batis maritima Turtleweed OBL Armeria maritima Sea Thrift FACU Atriplex amnicola Swamp Saltbush FAC Beckmannia syzigachne American Slough Grass OBL Arnica chamissonis Leafy Leopardbane FACW Atriplex argentea Silverscale FAC Berberis thunbergii Japanese Barberry FACU Arnica fulgens Shining Leopardbane FACU Atriplex bonnevillensis Bonneville Saltbush FACW Berberis vulgaris European Barberry FACU Arnica lanceolata Lance-Leaf Leopardbane FACW Atriplex cordulata Heartscale FAC Bergia texana Texas Bergia OBL Arnica latifolia Daffodil Leopardbane FAC Atriplex coronata Crown Saltbush FACW Berula erecta Cut-Leaf-Water-Parsnip OBL Arnica longifolia Spear-Leaf Leopardbane FACW Atriplex coulteri Coulter's Saltbush FACU Besseya alpina Alpine Coraldrops FACW Arnica mollis Cordilleran Leopardbane FAC Atriplex depressa Rhomboid-Bract Saltbush FAC Besseya plantaginea White River Coraldrops FAC Arnica ovata Sticky-Leaf Leopardbane FACW Atriplex dioica Saline Saltbush FAC Betula X sandbergii OBL Arrhenatherum elatius Tall Oat Grass UPL Atriplex fruticulosa Ball Saltbush FACW Betula glandulosa Resin Birch OBL Artemisia annua Annual Wormwood UPL Atriplex gmelinii Gmelin's Saltbush FACW Betula occidentalis Water Birch FACW Artemisia biennis Biennial Wormwood FACW Atriplex griffithsii Griffiths' Saltbush FACU Betula papyrifera Paper Birch FAC Artemisia campestris Pacific Wormwood UPL Atriplex hillmanii Hillman's Silverscale FACU Betula pendula European Weeping Birch FACU Artemisia cana Coaltown Sagebrush FACU Atriplex hortensis Garden Orache FAC Betula pubescens Downy Birch FAC Artemisia douglasiana Douglas' Wormwood FAC Atriplex lentiformis Quailbush FAC Betula pumila Bog Birch OBL Artemisia ludoviciana White Sagebrush FACU Atriplex leucophylla Beach Saltbush FAC Bidens aurea Arizona Beggarticks OBL Artemisia norvegica Boreal Sagebrush FACU Atriplex minuscula Lesser Saltbush FACU Bidens beckii Beck's Water-Marigold OBL Artemisia papposa Fuzzy Sagebrush FACU Atriplex mucronata Crested Saltbush FACU Bidens bigelovii Bigelow's Beggarticks FACW Artemisia potentilloides Five-Finger Chicken-Sage FAC Atriplex pacifica Davidson's Saltbush FACU Bidens bipinnata Spanish-Needles FAC Artemisia suksdorfii Coastal Wormwood FACU Atriplex parishii Brittlescale FAC Bidens cernua Nodding Burr-Marigold OBL Artemisia tilesii Tilesius' Wormwood FACU Atriplex parryi Parry's Saltbush FAC Bidens frondosa Devil's-Pitchfork FACW Artemisia vulgaris Common Wormwood UPL Atriplex patula Halberd-Leaf Orache FACW Bidens laevis Smooth Beggarticks OBL Arthrocnemum subterminale Parish's Glasswort FACW Atriplex persistens Sacramento Saltbush FACW Bidens leptocephala Few-Flower Beggarticks FAC Aruncus dioicus Bride's-Feathers FACU Atriplex phyllostegia Arrow Saltbush FACW Bidens pilosa Hairy Beggarticks FAC Arundo donax Giant-Reed FACW Atriplex polycarpa Cattle-Spinach FACU Bidens tenuisecta Slim-Lobe Beggarticks FAC Asarum caudatum Long-Tail Wild Ginger FAC Atriplex prostrata Hastate Orache FACW Bidens tripartita Three-Lobe Beggarticks OBL Bidens vulgata Tall Beggarticks FACW Bulbostylis capillaris Dense-Tuft Hair Sedge FACU Cardamine hirsuta Hairy Bittercress FACU Bistorta bistortoides American Bistort FACW Bulbostylis funckii Funck's Hair Sedge FACW Cardamine macrocarpa Large-Seed Bittercress FAC Bistorta vivipara Serpent-Grass FAC Bulbostylis juncoides Rush Hair Sedge FACW Cardamine nuttallii Nuttall's Toothwort FAC Blechnum spicant Deer Fern FAC Butomus umbellatus Greater Flowering-Rush OBL Cardamine occidentalis Big Western Bittercress FACW Blennosperma bakeri Baker's Stickyseed OBL Cabomba caroliniana Carolina Fanwort OBL Cardamine oligosperma Little Western Bittercress FAC Blennosperma nanum Common Stickyseed FACW Cakile edentula American Searocket FACU Cardamine pachystigma Serpentine Bittercress FAC Bloomeria clevelandii San Diego Goldenstars FACU Cakile maritima European Searocket FAC Cardamine parviflora Sand Bittercress FACW Boechera collinsii FACU Calamagrostis bolanderi Bolander's Reed Grass FACW Cardamine pensylvanica Quaker Bittercress FACW Boechera divaricarpa FACU Calamagrostis breweri Short-Hair Reed Grass FACW Cardamine umbellata Umbell's Bittercress FACW Boechera goodrichii Goodrich Rockcress FACU Calamagrostis canadensis Bluejoint FACW Cardiospermum halicacabum Love-in-a-Puff FAC Boechera grahamii Boivin's Rockcress FACU Calamagrostis nutkaensis Nootka Reed Grass FACW Carduus nutans Nodding Plumeless-Thistle FACU Boechera lemmonii Soldier Rockcress FACU Calamagrostis scopulorum Ditch Reed Grass FAC Carex X physocarpoides OBL Boechera stricta Canadian Rockcress FACU Calamagrostis stricta Slim-Stem Reed Grass FACW Carex aboriginum Indian Valley Sedge OBL Boehmeria cylindrica Small-Spike False Nettle OBL Calamagrostis tweedyi Cascade Reed Grass FAC Carex abrupta Abrupt-Beak Sedge FAC Boerhavia erecta Erect Spiderling FACU Calandrinia ciliata Fringed Redmaids FACU Carex albonigra Black-and-White-Scale Sedge FACU Bolandra californica Sierran False Coolwort FACW Calibrachoa parviflora Seaside-Petunia FACW Carex alma Sturdy Sedge OBL Bolandra oregana Northern False Coolwort FACW Callisia repens Creeping-Inchplant FACU Carex amplifolia Big-Leaf Sedge OBL Boltonia asteroides White Doll's Daisy OBL Callitriche fassettii Fassett's Water-Starwort OBL Carex angustata Many-Fruit Sedge FACW Borrichia frutescens Bushy Seaside-Tansy FACW Callitriche hermaphroditica Autumn Water-Starwort OBL Carex aperta Columbian Sedge FACW Bothriochloa barbinodis Cane Beard Grass UPL Callitriche heterophylla Greater Water-Starwort OBL Carex aquatilis Leafy Tussock Sedge OBL Bothriochloa bladhii Australian Beard Grass FACU Callitriche longipedunculata Long-Stock Water-Starwort OBL Carex arcta Northern Cluster Sedge OBL Botrychium ascendens Triangle-Lobe Moonwort FAC Callitriche marginata Winged Water-Starwort OBL Carex atherodes Wheat Sedge OBL Botrychium crenulatum Scalloped Moonwort FACW Callitriche palustris Vernal Water-Starwort OBL Carex athrostachya Slender-Beak Sedge FACW Botrychium hesperium Western Moonwort FACU Callitriche stagnalis Pond Water-Starwort OBL Carex atrosquama Lesser Black-Scale Sedge FACU Botrychium lanceolatum Lance-Leaf Moonwort FACW Callitriche stenoptera Narrow-Wing Water-Starwort OBL Carex aurea Golden-Fruit Sedge OBL Botrychium lunaria Common Moonwort FAC Callitriche trochlearis Effluent Water-Starwort OBL Carex barbarae Santa Barbara Sedge FAC Botrychium pinnatum Northeastern Moonwort FACU Callitropsis nootkatensis Alaska-Cedar FAC Carex bebbii Bebb's Sedge OBL Botrychium simplex Least Moonwort FAC Calochortus excavatus Inyo Mariposa-Lily FACU Carex bella Southwestern Showy Sedge FACU Botrypus virginianus Rattlesnake Fern FAC Calochortus longebarbatus Long-Beard Mariposa-Lily FAC Carex blanda Eastern Woodland Sedge FAC Bouteloua dactyloides Buffalo Grass FACU Calochortus minimus Sierran Mariposa-Lily FAC Carex bolanderi Bolander's Sedge FAC Bowlesia incana Hoary Bowlesia FACU Calochortus monanthus Shasta River Mariposa-Lily FAC Carex brevior Short-Beak Sedge FAC Boykinia major Mountain Brookfoam FACW Calochortus nudus Naked Mariposa-Lily FAC Carex brunnescens Brownish Sedge OBL Boykinia occidentalis Coastal Brookfoam FAC Calochortus palmeri Palmer's Mariposa-Lily FACW Carex buxbaumii Brown Bog Sedge OBL Boykinia rotundifolia Round-Leaf Brookfoam FACW Calochortus striatus Alkali Mariposa-Lily FACW Carex californica California Sedge FACW Brasenia schreberi Watershield OBL Calochortus uniflorus Monterey Mariposa-Lily FACW Carex canescens Hoary Sedge OBL Brassica juncea Chinese Mustard FACU Caltha leptosepala White Marsh-Marigold OBL Carex capillaris Hair-Like Sedge FACW Brassica rapa Rape FACU Caltha palustris Yellow Marsh-Marigold OBL Carex capitata Capitate Sedge FAC Braya glabella Smooth Northern-Rockcress FAC Calycanthus occidentalis Western Sweetshrub FAC Carex chordorrhiza Rope-Root Sedge OBL Braya humilis Alpine Northern-Rockcress UPL Calypso bulbosa Fairy-Slipper Orchid FAC Carex comosa Bearded Sedge OBL Brickellia californica California Brickellbush FACU Calyptocarpus vialis Straggler Daisy FAC Carex concinna Low Northern Sedge FAC Brickellia greenei Mountain Brickellbush FACU Calyptridium roseum FACU Carex conoidea Open-Field Sedge FACW Briza media Perennial Quaking Grass FAC Calystegia sepium Hedge False Bindweed FAC Carex crawei Crawe's Sedge FACW Briza minor Lesser Quaking Grass FAC Camassia leichtlinii Large Camas FACW Carex crawfordii Crawford's Sedge FAC Brodiaea coronaria Harvest Cluster-Lily FAC Camassia quamash Small Camas FACW Carex cusickii Cusick's Sedge OBL Brodiaea elegans Elegant Cluster-Lily FACU Camelina alyssum Madwort False Flax FACU Carex davyi Davy's Sedge FACW Brodiaea filifolia Thread-Leaf Cluster-Lily FAC Camelina microcarpa Little-Pod False Flax FACU Carex densa Dense Sedge OBL Brodiaea orcuttii Orcutt's Cluster-Lily OBL Camelina sativa Gold-of-Pleasure FACU Carex deweyana Dewey's Sedge FACU Brodiaea pallida Chinese Camp Cluster-Lily FACW Campanula aparinoides Marsh Bellflower OBL Carex diandra Lesser Tussock Sedge OBL Brodiaea rosea Indian Valley Cluster-Lily FAC Campanula californica Swamp Bellflower OBL Carex disperma Soft-Leaf Sedge OBL Bromidium tandilense Kennedy's Tropical Bent OBL Campanula parryi Parry's Bellflower FACU Carex divulsa Grassland Sedge FAC Bromus arvensis Field Brome FACU Campanula rotundifolia Bluebell-of-Scotland FACU Carex douglasii Douglas' Sedge FAC Bromus briziformis Rattlesnake Brome UPL Campanula scouleri Pale Bellflower FACU Carex echinata Star Sedge OBL Bromus ciliatus Fringed Brome FAC Campanula uniflora Arctic Bellflower FAC Carex egglestonii Eggleston's Sedge FACU Bromus hordeaceus Soft Brome FACU Campanula wilkinsiana Wilkins' Bellflower FACW Carex elynoides Black-Root Sedge FAC Bromus inermis Smooth Brome FACU Campsis radicans Trumpet-Creeper FACU Carex emoryi Emory's Sedge OBL Bromus madritensis Compact Brome UPL Canadanthus modestus Canada-Aster FACW Carex exsiccata Western Inflated Sedge OBL Bromus pubescens Hairy Woodland Brome FACU Canna flaccida Bandanna-of-the-Everglades OBL Carex feta Green-Sheath Sedge FACW Bromus richardsonii Richardson's Brome FACU Capsella bursa-pastoris Shepherd's-Purse FACU Carex fissuricola Cleft Sedge FACW Bromus vulgaris Colombian Brome FACU Cardamine angulata Seaside Bittercress FACW Carex flava Yellow-Green Sedge OBL Broussonetia papyrifera Paper-Mulberry FACU Cardamine bellidifolia Alpine Bittercress FAC Carex foenea Bronze-Head Oval Sedge FACU Browallia eludens Bush-Violet FACW Cardamine breweri Sierran Bittercress FACW Carex fracta Fragile-Sheath Sedge FAC Buchnera americana American Bluehearts FAC Cardamine constancei Constance's Bittercress FAC Carex frankii Frank's Sedge OBL Buddleja davidii Orange-Eye Butterfly-Bush FACU Cardamine cordifolia Large Mountain Bittercress FACW Carex fuliginosa Short-Leaf Sedge FACU Bulbostylis barbata Water-Grass FACU Cardamine flexuosa Woodland Bittercress FACU Carex garberi Elk Sedge FACW Carex gravida Heavy Sedge FACW Carex parryana Parry's Sedge FAC Castilleja campestris Vernal-Pool Indian-Paintbrush FACW Carex gynocrates Northern Bog Sedge OBL Carex pauciflora Few-Flower Sedge OBL Castilleja lemmonii Lemmon's Indian-Paintbrush FACW Carex gynodynama Olney's Hairy Sedge FAC Carex paysonis Payson's Sedge FACU Castilleja lineata Marsh-Meadow Indian-Paintbrush Carex hallii Deer Sedge FACW Carex pellita Woolly Sedge OBL FACW Carex harfordii Harford's Sedge OBL Carex pelocarpa Dusky-Seed Sedge FAC Castilleja miniata Great Red Indian-Paintbrush FACW Carex hassei Hasse's Sedge FACW Carex pendula Pendulous Sedge FAC Castilleja minor Alkali Indian-Paintbrush OBL Carex haydeniana Hayden's Sedge FAC Carex petasata Liddon Sedge FAC Castilleja mogollonica Mogollon Indian-Paintbrush FACW Carex hendersonii Henderson's Sedge FAC Carex phaeocephala Mountain Hare Sedge FACU Castilleja occidentalis Pale-Yellow Indian-Paintbrush FAC Carex heteroneura Different-Nerve Sedge FAC Carex podocarpa Short-Stalk Sedge FAC Castilleja parviflora Small-Flower Indian-Paintbrush FAC Carex hirtissima Fuzzy Sedge OBL Carex praeceptorum Teacher's Sedge OBL Castilleja rhexiifolia Rosy Indian-Paintbrush FAC Carex hoodii Hood's Sedge FAC Carex praegracilis Clustered Field Sedge FACW Castilleja salsuginosa Monte Neva Indian-Paintbrush FAC Carex hystericina Porcupine Sedge OBL Carex praticola Northern Meadow Sedge FACW Castilleja septentrionalis Labrador Indian-Paintbrush FACU Carex idahoa Idaho Sedge FACW Carex preslii Presl's Sedge FACU Castilleja suksdorfii Suksdorf's Indian-Paintbrush FACW Carex illota Small-Head Sedge FACW Carex raynoldsii Raynolds' Sedge FACU Castilleja tenuis Hairy Indian-Paintbrush FAC Carex incurviformis Coastal-Sand Sedge FAC Carex retrorsa Retrorse Sedge OBL Casuarina equisetifolia Beach She-Oak FACU Carex infirminervia FAC Carex rosea Rosy Sedge FAC Catabrosa aquatica Water Whorl Grass OBL Carex integra Smooth-Beak Sedge OBL Carex rostrata Swollen Beaked Sedge OBL Catalpa bignonioides Southern Catalpa UPL Carex interior Inland Sedge OBL Carex rupestris Curly Sedge FACU Catalpa speciosa Northern Catalpa FAC Carex interrupta Green-Fruit Sedge OBL Carex saliniformis Santa Cruz Sedge FACW Catharanthus roseus Madagascar-Periwinkle UPL Carex jonesii Jones' Sedge FACW Carex sartwelliana Yosemite Sedge OBL Celastrus scandens American Bittersweet FACU Carex kelloggii Kellogg's Sedge OBL Carex sartwellii Sartwell's Sedge OBL Celtis laevigata Sugar-Berry FAC Carex klamathensis Klamath Sedge OBL Carex saxatilis Russet Sedge OBL Celtis occidentalis Common Hackberry FAC Carex lachenalii Arctic Hare-Foot Sedge OBL Carex scabriuscula Cascade Sedge FACW Celtis reticulata Net-Leaf Hackberry FAC Carex laeviculmis Smooth-Stem Sedge FACW Carex schottii Schott's Sedge OBL Cenchrus americanus Pearl-Millet UPL Carex lasiocarpa Woolly-Fruit Sedge OBL Carex scirpoidea Canadian Single-Spike Sedge FAC Cenchrus ciliaris Buffel Grass UPL Carex lemmonii Lemmon's Sedge OBL Carex scoparia Pointed Broom Sedge FACW Cenchrus clandestinus Kikuyu Grass FACU Carex lenticularis Lakeshore Sedge OBL Carex scopulorum Holm's Rocky Mountain Sedge FACW Cenchrus echinatus Southern Sandburr FACU Carex leporina Oval Sedge FACW Carex senta Western Rough Sedge OBL Cenchrus longispinus Innocent-Weed UPL Carex leporinella Sierran Hare Sedge FACW Carex serratodens Saw-Tooth Sedge FACW Cenchrus myosuroides Big Sandburr FACU Carex leptalea Bristly-Stalk Sedge OBL Carex sheldonii Sheldon's Sedge OBL Cenchrus polystachios Mission Grass FAC Carex leptopoda Taper-Fruit Short-Scale Sedge FAC Carex siccata Dry-Spike Sedge UPL Cenchrus purpureus Elephant Grass FACU Carex limosa Mud Sedge OBL Carex simulata Analogue Sedge OBL Centaurea X moncktonii FACU Carex livida Livid Sedge OBL Carex spectabilis Northwestern Showy Sedge FACW Centaurea cyanus Garden Cornflower FACU Carex longii Long's Sedge FACW Carex specuicola Navajo Sedge OBL Centaurea jacea Brown-Ray Knapweed FACU Carex luzulifolia Little-Leaf Sedge FACW Carex spissa San Diego Sedge FAC Centaurium erythraea European Centaury FAC Carex luzulina Woodrush Sedge OBL Carex sprengelii Long-Beak Sedge FAC Centaurium pulchellum Branched Centaury FACU Carex lyngbyei Lyngbye's Sedge OBL Carex stevenii Steven's Sedge FAC Centaurium tenuiflorum Slender Centaury FACW Carex macloviana Falkland Island Sedge FACW Carex stipata Stalk-Grain Sedge OBL Centipeda minima Spreading-Sneezeweed FAC Carex macrochaeta Alaska Long-Awn Sedge FACW Carex subbracteata Small-Bract Sedge FACW Centromadia fitchii Fitch's False Tarplant FACU Carex magellanica Boreal-Bog Sedge OBL Carex suberecta Prairie Straw Sedge OBL Centromadia parryi Parry's False Tarplant FACW Carex mariposana Mariposa Sedge FACW Carex subfusca Rusty Sedge FAC Centromadia pungens Pungent False Tarplant FAC Carex mckittrickensis Guadalupe Mountain Sedge FACW Carex subnigricans Dark Mountain Sedge FAC Cephalanthus occidentalis Common Buttonbush OBL Carex meadii Mead's Sedge OBL Carex sychnocephala Many-Head Sedge FACW Cerastium arvense Field Mouse-Ear Chickweed FACU Carex media Montana Sedge FACW Carex tenera Quill Sedge FACW Cerastium axillare Trans-Pecos Mouse-Ear Chickweed Carex mendocinensis Mendocino Sedge FACW Carex tenuiflora Sparse-Flower Sedge OBL FACU Carex mertensii Mertens' Sedge FAC Carex thurberi Thurber's Sedge FAC Cerastium beeringianum Bering Sea Mouse-Ear Chickweed Carex microdonta Little-Tooth Sedge FAC Carex tiogana Mono Sedge FACW FACU Carex microglochin False Uncinia Sedge OBL Carex torreyi Torrey's Sedge FAC Cerastium brachypodum Short-Stalk Mouse-Ear Chickweed Carex micropoda Pyrenean Sedge FAC Carex tumulicola Foothill Sedge FACU FAC Carex microptera Small-Wing Sedge FAC Carex turbinata Turban Sedge FACU Cerastium fontanum Common Mouse-Ear Chickweed Carex molesta Troublesome Sedge FAC Carex unilateralis One-Sided Sedge FACW FACU Carex nardina Nard Sedge FACU Carex utriculata Northwest Territory Sedge OBL Cerastium glomeratum Sticky Mouse-Ear Chickweed UPL Carex nebrascensis Nebraska Sedge OBL Carex vallicola Valley Sedge FAC Cerastium nutans Nodding Mouse-Ear Chickweed Carex nelsonii Nelson's Sedge FAC Carex vernacula Native Sedge FAC FACU Carex nervina Sierran Sedge FACW Carex vesicaria Lesser Bladder Sedge OBL Ceratophyllum demersum Coon's-Tail OBL Carex neurophora Alpine Nerve Sedge FACW Carex viridula Little Green Sedge OBL Ceratopteris thalictroides Watersprite OBL Carex nigricans Black Alpine Sedge FACW Carex vulpinoidea Common Fox Sedge OBL Cercis canadensis Redbud UPL Carex nova New Sedge FAC Carpobrotus chilensis Baby Sun-Rose FACU Cestrum nocturnum Night Flowering-Jassamine UPL Carex nudata Torrent Sedge FACW Cartrema americana Devilwood FAC Chaerophyllum tainturieri Hairy-Fruit Chervil FAC Carex obispoensis San Luis Obispo Sedge FACW Carum carvi Caraway FACU Chamaecrista fasciculata Sleepingplant FACU Carex obnupta Slough Sedge OBL Carya illinoinensis Pecan FAC Chamaecyparis lawsoniana Port Orford-Cedar FACU Carex pachystachya Thick-Head Sedge FAC Cassiope mertensiana Western Moss-Heather FACU Chamaenerion angustifolium Narrow-Leaf Fireweed FACU Carex pallescens Pale Sedge FAC Cassiope tetragona White Arctic Mountain-Heather FACU Chamaenerion latifolium Broad-Leaf Fireweed FACW Carex pansa Sand-Dune Sedge FACU Castilleja ambigua Johnnynip FACW Chasmanthium latifolium Indian Wood-Oats FAC Chelidonium majus Greater Celandine FACU Claytonia sibirica Siberian Springbeauty FAC Cotula mexicana Mexican Brassbuttons UPL Chenopodium album Lamb's-Quarters FACU Claytonia washingtoniana Washington Springbeauty FACU Crassocephalum crepidioides Red-Flower Ragleaf FACU Chenopodium chenopodioides Low Goosefoot FACW Clematis crispa Swamp Leather-Flower FACW Crassula aquatica Water Pygmyweed OBL Chenopodium foliosum Leafy Goosefoot FACU Clematis ligusticifolia Deciduous Traveler's-Joy FAC Crassula connata Sand Pygmyweed FAC Chenopodium fremontii Fremont's Goosefoot FACU Clematis pitcheri Bluebill FACU Crassula solieri Smooth-Seed Pygmyweed OBL Chenopodium glaucum Oak-Leaf Goosefoot FAC Clematis terniflora Sweet Autumn Virgin's-Bower FACU Crassula tillaea Moss Pygmyweed FACU Chenopodium leptophyllum Narrow-Leaf Goosefoot FACU Clematis vitalba Evergreen Traveler's-Joy FAC Crataegus douglasii Black Hawthorn FAC Chenopodium macrospermum Large-Seed Goosefoot FACW Cleomella brevipes Short-Stalk Stinkweed FACW Crataegus erythropoda Cerro Hawthorn FAC Chenopodium murale Nettle-Leaf Goosefoot FACU Cleomella longipes Chiricahua Mountain Stinkweed Crataegus gaylussacia Suksdorf's Hawthorn FAC Chenopodium rubrum Red Goosefoot FACW FACU Crataegus monogyna English Hawthorn FAC Chilopsis linearis Desert-Willow FAC Cleomella parviflora Small-Flower Stinkweed FACW Crataegus rivularis River Hawthorn FAC Chionophila jamesii Rocky Mountain Snowlover FACU Cleomella plocasperma Alkali Stinkweed FACW Crataegus saligna Willow Hawthorn FAC Chloracantha spinosa Mexican-Devilweed FAC Clinopodium arkansanum Limestone Wild Basil FAC Crepis capillaris Smooth Hawk's-Beard FACU Chloris gayana Rhodes Grass FACU Clinopodium douglasii Oregon-Tea FACU Crepis runcinata Fiddle-Leaf Hawk's-Beard FACU Chloris virgata Feather Windmill Grass FACU Clitoria mariana Atlantic Pigeonwings FACU Cressa truxillensis Spreading Alkali-Weed FACW Chloropyron maritimum Saltmarsh Salt-Bird's-Beak OBL Cocculus carolinus Carolina Coralbead FACU Crocosmia X crocosmiiflora FACU Chloropyron molle Soft Salt-Bird's-Beak OBL Coeloglossum viride Long-Bract Frog Orchid FAC Crotalaria capensis Cape Rattlebox FACU Chloropyron palmatum Palm-Bract Salt-Bird's-Beak OBL Coix lacryma-jobi Job's-Tears FACW Crypsis alopecuroides Fox-Tail Prickle Grass OBL Chloropyron tecopense Tecopa Salt-Bird's-Beak FACW Coleanthus subtilis Moss Grass OBL Crypsis schoenoides Swamp Prickle Grass FACW Chrysosplenium glechomifolium Pacific Coleataenia rigidula Red-Top Cut-Throat Grass FACW Crypsis vaginiflora African Prickle Grass OBL Golden-Saxifrage OBL Collinsia tinctoria Tinctureplant FACU Cryptantha crinita Sacramento Cat's-Eye FACU Chrysosplenium tetrandrum Northern Golden-Saxifrage OBL Collomia linearis Narrow-Leaf Mountain-Trumpet FACU Cryptogramma stelleri Fragile Rockbrake FACU Cicendia quadrangularis Oregon Timwort FAC Collomia rawsoniana Flaming Mountain-Trumpet FACU Cyclachaena xanthiifolia Carelessweed FAC Cichorium intybus Chicory FACU Comandra umbellata Bastard-Toadflax UPL Cycloloma atriplicifolium Winged-Pigweed FACU Cicuta bulbifera Bulblet-Bearing Water-Hemlock OBL Comarum palustre Purple Marshlocks OBL Cyclospermum leptophyllum Marsh-Parsley FACU Cicuta douglasii Western Water-Hemlock OBL Comastoma tenellum Samiland-Gentian FACW Cynanchum laeve Honeyvine FAC Cicuta maculata Spotted Water-Hemlock OBL Commelina benghalensis Jio FACU Cynodon dactylon Bermuda Grass FACU Cinna bolanderi Bolander's Wood-Reed FACW Commelina communis Asiatic Dayflower FAC Cynoglossum officinale Gypsy-Flower FACU Cinna latifolia Slender Wood-Reed FACW Commelina erecta White-Mouth Dayflower FACU Cynosurus cristatus Crested Dog's-Tail Grass FACU Cinnamomum camphora Camphortree UPL Conioselinum pacificum Pacific Hemlock-Parsley FAC Cyperus acuminatus Taper-Tip Flat Sedge OBL Circaea alpina Small Enchanter's-Nightshade FAC Conioselinum scopulorum Rocky Mountain Hemlock-Parsley Cyperus aggregatus Inflated-Scale Flat Sedge FAC Cirsium andrewsii Franciscan Thistle FAC FACW Cyperus amabilis Foothill Flat Sedge FACU Cirsium arizonicum Arizona Thistle FACU Conium maculatum Poison-Hemlock FACW Cyperus bipartitus Shining Flat Sedge OBL Cirsium arvense Canadian Thistle FACU Conoclinium dissectum Pinked Mistflower FACU Cyperus croceus Baldwin's Flat Sedge FAC Cirsium crassicaule Slough Thistle OBL Convolvulus equitans Texas Bindweed FACU Cyperus difformis Variable Flat Sedge OBL Cirsium douglasii Douglas' Thistle OBL Cooperia chlorosolen Evening Rain-Lily FACU Cyperus elegans Royal Flat Sedge FACW Cirsium edule Edible Thistle FAC Coptis laciniata Oregon Goldthread FAC Cyperus eragrostis Tall Flat Sedge FACW Cirsium flodmanii Flodman's Thistle FAC Corallorhiza maculata Summer Coralroot UPL Cyperus erythrorhizos Red-Root Flat Sedge OBL Cirsium foliosum Elk Thistle FAC Corallorhiza striata Hooded Coralroot FACU Cyperus esculentus Chufa FACW Cirsium fontinale Fountain Thistle OBL Corallorhiza trifida Yellow Coralroot FAC Cyperus fendlerianus Fendler's Flat Sedge FAC Cirsium hydrophilum Suisun Thistle OBL Corallorhiza wisteriana Spring Coralroot FAC Cyperus flavescens Yellow Flat Sedge OBL Cirsium mohavense Mojave Thistle FACU Cordylanthus eremicus Desert Bird's-Beak FACW Cyperus flavicomus White-Edge Flat Sedge FAC Cirsium nuttallii Nuttall's Thistle FAC Cordylanthus ramosus Bushy Bird's-Beak FACU Cyperus fuscus Galingale FAC Cirsium parryi Parry's Thistle FACW Coreopsis lanceolata Lance-Leaf Tickseed FACU Cyperus gracilis Slimjim Flat Sedge FAC Cirsium scariosum Meadow Thistle FAC Coreopsis tinctoria Golden Tickseed FACU Cyperus hermaphroditus Hermaphrodite Flat Sedge FAC Cirsium tracyi Tracy's Thistle FACU Corispermum americanum American Bugseed FACU Cyperus involucratus Alternate-Leaf Flat Sedge FACW Cirsium undulatum Wavy-Leaf Thistle FACU Corispermum hyssopifolium Hyssop-Leaf Bugseed FACU Cyperus iria Ricefield Flat Sedge FACW Cirsium vinaceum Sacramento Mountain Thistle OBL Corispermum welshii Welsh's Bugseed FACU Cyperus laevigatus Smooth Flat Sedge FACW Cirsium vulgare Bull Thistle FACU Cornus alba Red Osier FACW Cyperus lupulinus Great Plains Flat Sedge FACU Cirsium wrightii Wright's Thistle OBL Cornus canadensis Canadian Bunchberry FAC Cyperus mutisii Mutis' Flat Sedge FACU Cissus trifoliata Sorrelvine UPL Cornus glabrata Smooth-Leaf Dogwood FACW Cyperus niger Black Flat Sedge FACW Cistanthe ambigua Desert Pussypaws FAC Cornus nuttallii Pacific Flowering Dogwood FACU Cyperus odoratus Rusty Flat Sedge FACW Citrullus lanatus Watermelon UPL Cornus sessilis Black-Fruit Dogwood FAC Cyperus onerosus Plains Flat Sedge FACW Cladium californicum California Saw-Grass OBL Cortaderia jubata Uruguayan Pampas Grass FACU Cyperus owanii Owan's Flat Sedge FAC Cladium mariscus Swamp Saw-Grass OBL Cortaderia selloana Selloa Pampus Grass FACU Cyperus papyrus Papyrus Flat Sedge OBL Claytonia cordifolia Heart-Leaf Springbeauty FAC Corydalis caseana Sierran Fumewort FACW Cyperus parishii Parish's Flat Sedge FACW Claytonia gypsophiloides Gypsum Springbeauty FACU Corylus avellana Common Filbert FACU Cyperus retrorsus Pine-Barren Flat Sedge FAC Claytonia lanceolata Lance-Leaf Springbeauty FAC Corylus cornuta Beaked Hazelnut FACU Cyperus rotundus Purple Flat Sedge FAC Claytonia megarhiza Alpine Springbeauty FACU Corymbia citriodora Lemon-Scented Ghost-Gum FACU Cyperus schweinitzii Sand Flat Sedge FAC Claytonia multiscapa Many-Stem Springbeauty FAC Cosmos bipinnatus Garden Cosmos FACW Cyperus seslerioides Texas Flat Sedge FAC Claytonia nevadensis Sierran Springbeauty FAC Cosmos parviflorus Southwestern Cosmos FACU Cyperus squarrosus Awned Flat Sedge OBL Claytonia palustris Jonesville Springbeauty FACW Cosmos sulphureus Sulphur Cosmos FACU Cyperus strigosus Straw-Color Flat Sedge FACW Claytonia parviflora Streambank Springbeauty FACU Cotula australis Australian Water-Buttons FAC Cyperus tetragonus Four-Angle Flat Sedge FACU Claytonia perfoliata Miner's-Lettuce FAC Cotula coronopifolia Common Brassbuttons OBL Cyperus virens Green Flat Sedge FACW Cypripedium californicum California Lady's-Slipper OBL Digitaria ciliaris Southern Crab Grass FACU Drosera tracyi Tracy's Sundew OBL Cypripedium fasciculatum Clustered Lady's-Slipper FACU Digitaria eriantha Pangola Grass FACU Dryas ajanensis Eight-Petal Mountain-Avens UPL Cypripedium montanum Mountain Lady's-Slipper FACU Digitaria insularis Sour Grass UPL Dryas drummondii Yellow Mountain-Avens FACU Cypripedium parviflorum Yellow Lady's-Slipper FACW Digitaria ischaemum Smooth Crab Grass FACU Drymaria pachyphylla Thick-Leaf Drymary FACU Cypselea humifusa Panal FACW Digitaria sanguinalis Hairy Crab Grass FACU Drymocallis arguta Tall Woodbeauty FACU Cyrtorhyncha cymbalaria Alkali Buttercup OBL Dinebra nealleyi Nealley's Viper Grass FACW Drymocallis arizonica Arizona Woodbeauty FAC Cyrtorhyncha ranunculina Tadpole Alkali Buttercup FACU Dinebra panicea Needle Viper Grass FACW Drymocallis campanulata John Day Valley Woodbeauty FAC Cystopteris bulbifera Bulblet Bladder Fern FAC Dinebra viscida Sonoran Viper Grass FACU Drymocallis convallaria Cream Woodbeauty FACU Cystopteris fragilis Brittle Bladder Fern FACU Diodia teres Poorjoe FACU Drymocallis cuneifolia Wedge-Leaf Woodbeauty FAC Cystopteris montana Mountain Bladder Fern FAC Diodia virginiana Virginia Buttonweed FACW Drymocallis glabrata Idaho Woodbeauty FAC Dactylis glomerata Orchard Grass FACU Diospyros virginiana Common Persimmon FAC Drymocallis glandulosa Sticky Woodbeauty FAC Dalea leporina Fox-Tail Prairie-Clover UPL Diphasiastrum alpinum Alpine Creeping-Cedar FAC Drymocallis hansenii Yosemite Woodbeauty FAC Damasonium californicum Fringed-Water-Plantain OBL Diphasiastrum complanatum Trailing Creeping-Cedar FAC Drymocallis lactea Sierran Woodbeauty FAC Danthonia californica California Wild Oat Grass FAC Diplachne fusca Bearded Sprangletop FACW Drymocallis micropetala Little-Petal Woodbeauty FAC Danthonia decumbens Common Heath Grass FAC Diplacus aurantiacus Orange Bush-Monkey-Flower FACU Drymocallis pseudorupestris FAC Danthonia intermedia Timber Wild Oat Grass FACU Diplacus parviflorus Island Bush-Monkey-Flower FACU Drymocallis rhomboidea Sticky Woodbeauty FAC Darlingtonia californica Cobraplant OBL Dipsacus fullonum Fuller's Teasel FAC Dryopteris carthusiana Spinulose Wood Fern FAC Darmera peltata Indian-Rhubarb OBL Dipsacus laciniatus Cut-Leaf Teasel FACU Dryopteris cristata Crested Wood Fern FACW Dasiphora fruticosa Golden-Hardhack FAC Dirca occidentalis Western Leatherwood FAC Dryopteris expansa Spreading Wood Fern FACW Datisca glomerata Durango-Root FACW Distichlis littoralis Shore Grass OBL Dudleya variegata Variegated Live-Forever FACU Datura wrightii Sacred Thorn-Apple UPL Distichlis spicata Coastal Salt Grass FAC Dulichium arundinaceum Three-Way Sedge OBL Daucus carota Queen Anne's-Lace UPL Dodecatheon alpinum Alpine Shootingstar FACW Dysphania ambrosioides Mexican-Tea FAC Deinandra fasciculata Clustered Moonshine-Daisy FACU Dodecatheon conjugens Bonneville Shootingstar FACU Dysphania botrys Jerusalem-Oak FACU Deinandra paniculata San Diego Moonshine-Daisy FACU Dodecatheon dentatum White Shootingstar FACW Echinochloa colona Jungle-Rice FAC Delosperma litorale Delosperma FACU Dodecatheon jeffreyi Tall Mountain Shootingstar FACW Echinochloa crus-galli Large Barnyard Grass FACW Delphinium X burkei FACU Dodecatheon poeticum Poet's Shootingstar FAC Echinochloa crus-pavonis Gulf Cock's-Spur Grass FACW Delphinium X occidentale FACU Dodecatheon pulchellum Dark-Throat Shootingstar FACW Echinochloa esculenta Japanese Water Grass FACU Delphinium andesicola Chiricahua Mountain Larkspur FACU Dodecatheon redolens Scented Shootingstar OBL Echinochloa frumentacea Japanese-Millet UPL Delphinium barbeyi Subalpine Larkspur FAC Dodecatheon subalpinum Sierran Shootingstar FACU Echinochloa holciformis Decorative-Millet FACW Delphinium californicum California Coast Larkspur FACU Dodonaea viscosa Florida Hopbush FACU Echinochloa muricata Rough Barnyard Grass FACW Delphinium geraniifolium Clark Valley Larkspur FAC Dopatrium junceum Horsefly's-Eye OBL Echinochloa oryzicola Rice-Field Grass FACW Delphinium glaucescens Electric Peak Larkspur FACU Downingia bacigalupii Bach's Calico-Flower OBL Echinochloa oryzoides Early Water Grass OBL Delphinium glaucum Tower Larkspur FACW Downingia bella Hoover's Calico-Flower OBL Echinochloa walteri Long-Awn Cock's-Spur Grass OBL Delphinium hesperium Foothill Larkspur FAC Downingia bicornuta Double-Horn Calico-Flower OBL Echinocystis lobata Wild Cucumber FACU Delphinium multiplex Kittitas Larkspur FAC Downingia concolor Maroon-Spot Calico-Flower OBL Echinodorus berteroi Upright Burrhead OBL Delphinium nuttallianum Two-Lobe Larkspur FAC Downingia cuspidata Toothed Calico-Flower OBL Echinopepon wrightii Wild Balsam-Apple FAC Delphinium nuttallii Upland Larkspur FACU Downingia elegans Elegant Calico-Flower OBL Eclipta prostrata False Daisy FAC Delphinium polycladon Mountain-Marsh Larkspur FACW Downingia insignis Harlequin Calico-Flower OBL Egeria densa Brazilian-Waterweed OBL Delphinium recurvatum Byron Larkspur FACU Downingia laeta Great Basin Calico-Flower OBL Eichhornia crassipes Common Water-Hyacinth OBL Delphinium sapellonis Sapello Canyon Larkspur FAC Downingia montana Sierran Calico-Flower OBL Elaeagnus angustifolia Russian-Olive FAC Delphinium scopulorum Rocky Mountain Larkspur FAC Downingia ornatissima Folded Calico-Flower OBL Elaeagnus commutata American Silver-Berry FAC Delphinium uliginosum Swamp Larkspur OBL Downingia pulchella Flat-Face Calico-Flower OBL Elatine ambigua Asian Waterwort OBL Deschampsia brevifolia Short-Leaf Hair Grass FACW Downingia pulcherrima FACW Elatine brachysperma Short-Seed Waterwort OBL Deschampsia caespitosa Tufted Hair Grass FACW Downingia pusilla Dwarf Calico-Flower OBL Elatine californica California Waterwort OBL Deschampsia danthonioides Annual Hair Grass FACW Downingia willamettensis Willamette Calico-Flower OBL Elatine chilensis Chilean Waterwort OBL Deschampsia elongata Slender Hair Grass FACW Downingia yina Cascade Calico-Flower OBL Elatine heterandra Mosquito Waterwort OBL Descurainia adenophora FACU Draba albertina Slender Whitlow-Grass FAC Elatine rubella Red-Stem Waterwort OBL Descurainia incana Mountain Tansy-Mustard FACU Draba aurea Golden Whitlow-Grass FACU Eleocharis acicularis Needle Spike-Rush OBL Desmanthus illinoensis Prairie Bundle-Flower FACU Draba helleriana Heller's Whitlow-Grass FAC Eleocharis albida White Spike-Rush OBL Desmanthus virgatus Wild Tantan FACU Draba lonchocarpa Lance-Pod Whitlow-Grass FACU Eleocharis atropurpurea Purple Spike-Rush FACW Dianthus armeria Deptford Pink UPL Draba paucifructa Charleston Mountain Whitlow-Grass Eleocharis bella Delicate Spike-Rush FACW Dianthus deltoides Maiden Pink FAC FAC Eleocharis bolanderi Bolander's Spike-Rush FACW Dicentra formosa Pacific Bleedinghearts FACU Draba praealta Tall Whitlow-Grass FACU Eleocharis compressa Flat-Stem Spike-Rush FACW Dichanthelium acuminatum Tapered Rosette Grass FAC Draba spectabilis Showy Whitlow-Grass FACU Eleocharis cylindrica Cylinder Spike-Rush OBL Dichanthelium leucothrix Rough Rosette Grass FACW Draba stenoloba Alaska Whitlow-Grass FACU Eleocharis elliptica Elliptic Spike-Rush OBL Dichanthelium oligosanthes Heller's Rosette Grass FACU Dracocephalum parviflorum American Dragonhead FACU Eleocharis engelmannii Engelmann's Spike-Rush OBL Dichanthelium sphaerocarpon Round-Seed Rosette Grass FACU Dracopis amplexicaulis Clasping-Coneflower FACW Eleocharis flavescens Yellow Spike-Rush OBL Dichelostemma capitatum Bluedicks FACU Drosera X hybrida OBL Eleocharis geniculata Capitate Spike-Rush OBL Dichondra micrantha Asian Pony's-Foot FACW Drosera X obovata OBL Eleocharis mamillata Soft-Stem Spike-Rush OBL Dichondra sericea Silver-Leaf Pony's-Foot FACU Drosera aliciae Australian Sundew OBL Eleocharis montana Mountain Spike-Rush OBL Didiplis diandra Water-Purslane OBL Drosera anglica English Sundew OBL Eleocharis montevidensis Sand Spike-Rush FACW Dieteria bigelovii Bigelow's False Tansy-Aster FACW Drosera capensis Cape Sundew OBL Eleocharis obtusa Blunt Spike-Rush OBL Dieteria canescens Hoar False Tansy-Aster UPL Drosera intermedia Spoon-Leaf Sundew OBL Eleocharis pachycarpa Black-Sand Spike-Rush OBL Digitalis purpurea Purple Foxglove FACU Drosera rotundifolia Round-Leaf Sundew OBL Eleocharis palustris Common Spike-Rush OBL Eleocharis parishii Parish's Spike-Rush FACW Equisetum laevigatum Smooth Scouring-Rush FACW Eryngium armatum Coastal Eryngo FACW Eleocharis parvula Little-Head Spike-Rush OBL Equisetum myriochaetum Mexican Giant Horsetail OBL Eryngium articulatum Bee-Thistle OBL Eleocharis quadrangulata Square-Stem Spike-Rush OBL Equisetum palustre Marsh Horsetail FACW Eryngium castrense Great Valley Eryngo OBL Eleocharis quinqueflora Few-Flower Spike-Rush OBL Equisetum scirpoides Dwarf Scouring-Rush FAC Eryngium constancei Loch Lomond Eryngo OBL Eleocharis radicans Rooted Spike-Rush OBL Equisetum sylvaticum Woodland Horsetail FAC Eryngium heterophyllum Wright's Eryngo FACW Eleocharis rostellata Beaked Spike-Rush OBL Equisetum telmateia Giant Horsetail FACW Eryngium jepsonii Jepson's Eryngo OBL Eleocharis suksdorfiana Suksdorf's Spike-Rush OBL Equisetum variegatum Variegated Scouring-Rush FACW Eryngium lemmonii Chiricahua Mountain Eryngo FAC Eleocharis torticulmis Twist-Stem Spike-Rush OBL Eragrostis amabilis Feather Love Grass FAC Eryngium mathiasiae Mathias' Eryngo OBL Eleusine indica Indian Goose Grass UPL Eragrostis cilianensis Stink Grass FACU Eryngium nasturtiifolium Hierba-Del-Sapo FACW Elionurus tripsacoides Pan-American Balsamscale FAC Eragrostis ciliaris Gopher-Tail Love Grass FACU Eryngium petiolatum Rush-Leaf Eryngo OBL Ellisia nyctelea Aunt Lucy FACU Eragrostis frankii Sandbar Love Grass FACW Eryngium phyteumae Huachuca Mountain Eryngo OBL Elodea bifoliata Two-Leaf Waterweed OBL Eragrostis hypnoides Teal Love Grass OBL Eryngium pinnatisectum Tuolumne Eryngo OBL Elodea callitrichoides South American Waterweed OBL Eragrostis lugens Mourning Love Grass FACU Eryngium racemosum Delta Eryngo OBL Elodea canadensis Canadian Waterweed OBL Eragrostis lutescens Six-Weeks Love Grass FACU Eryngium sparganophyllum Arizona Eryngo OBL Elodea nuttallii Western Waterweed OBL Eragrostis mexicana Mexican Love Grass FACU Eryngium spinosepalum Spiny-Sepal Eryngo FACW Elymus alaskanus Alaska Wild Rye UPL Eragrostis pectinacea Purple Love Grass FAC Eryngium vaseyi Coyote-Thistle FACW Elymus canadensis Nodding Wild Rye FAC Eragrostis pilosa Indian Love Grass FACU Erysimum cheiranthoides Worm-Seed Wallflower FACU Elymus curvatus Awnless Wild Rye FAC Eragrostis reptans Creeping Love Grass OBL Erythronium grandiflorum Yellow Avalanche-Lily FACU Elymus elymoides Western Bottle-Brush Grass FACU Eragrostis secundiflora Red Love Grass UPL Erythronium revolutum Mahogany Fawn-Lily FAC Elymus glaucus Blue Wild Rye FACU Eragrostis spectabilis Petticoat-Climber UPL Eucalyptus camaldulensis River Red Gum FAC Elymus lanceolatus Streamside Wild Rye UPL Eremochloa ciliaris Fringed Centipede Grass FACU Euonymus occidentalis Western Wahoo FACW Elymus repens Creeping Wild Rye FAC Eremogone capillaris Slender Mountain Matted Sandwort Euphorbia cyathophora Fire-on-the-Mountain UPL Elymus trachycaulus Slender Wild Rye FACU FACU Euphorbia heterophylla Mexican-Fireplant UPL Elymus villosus Hairy Wild Rye FACU Erigeron acris Bitter Fleabane FACU Euphorbia hirta Pill-Pod Sandmat FACU Elymus virginicus Virginia Wild Rye FACW Erigeron annuus Eastern Daisy Fleabane FACU Euphorbia hooveri Hoover's Sandmat OBL Elymus wawawaiensis Wawawai Wild Rye FACU Erigeron bonariensis Asthmaweed FACU Euphorbia hypericifolia Graceful Sandmat FACU Emilia fosbergii Florida Tassel-Flower UPL Erigeron canadensis Canadian Horseweed FACU Euphorbia hyssopifolia Hyssop-Leaf Sandmat FACU Emilia sonchifolia Lilac Tassel-Flower UPL Erigeron coulteri Large Mountain Fleabane FACW Euphorbia maculata Spotted Sandmat UPL Empetrum nigrum Black Crowberry FAC Erigeron elatior Tall Fleabane FAC Euphorbia marginata Snow-on-the-Mountain UPL Enchylaena tomentosa Ruby-Saltbush UPL Erigeron flagellaris Trailing Fleabane FACU Euphorbia nutans Eyebane FACU Epilobium anagallidifolium Pimpernel Willowherb FACU Erigeron formosissimus Beautiful Fleabane UPL Euphorbia prostrata Prostrate Sandmat FACU Epilobium campestre Smooth Willowherb OBL Erigeron glabellus Streamside Fleabane FAC Euphorbia pulcherrima Poinsettia UPL Epilobium ciliatum Fringed Willowherb FACW Erigeron glacialis Glacier Fleabane FAC Euphorbia serpens Matted Sandmat FACU Epilobium clavatum Talus Willowherb FACU Erigeron glaucus Seaside Fleabane FACU Euphorbia spathulata Warty Spurge FAC Epilobium cleistogamum Selfing Willowherb OBL Erigeron humilis Arctic Alpine Fleabane FACW Euphorbia tirucalli False Caper FACU Epilobium densiflorum Dense-Flower Willowherb FACW Erigeron kachinensis Kachina Fleabane OBL Euphrosyne acerosa Copperweed FACU Epilobium glaberrimum Glaucous Willowherb FACW Erigeron karvinskianus Latin American Fleabane FAC Eurybia merita Behring Wood-Aster FACU Epilobium hallianum Glandular Willowherb FACW Erigeron lanatus Woolly Fleabane FACU Eurybia sibirica Siberian Wood-Aster FAC Epilobium hirsutum Codlins-and-Cream FACW Erigeron lonchophyllus Short-Ray Fleabane FACW Eustoma exaltatum Catchfly Prairie-Gentian OBL Epilobium hornemannii Hornemann's Willowherb FACW Erigeron melanocephalus Black-Head Fleabane FAC Euthamia graminifolia Flat-Top Goldentop FAC Epilobium howellii Yuba Pass Willowherb FACW Erigeron nivalis Scotter's Fleabane FAC Euthamia occidentalis Western Goldentop FACW Epilobium lactiflorum White-Flower Willowherb FACW Erigeron philadelphicus Philadelphia Fleabane FACU Eutrochium maculatum Spotted Trumpetweed OBL Epilobium leptocarpum Slender-Fruit Willowherb FACW Erigeron strigosus Prairie Fleabane FACU Evolvulus sericeus Silver Dwarf-Morning-Glory UPL Epilobium leptophyllum Bog Willowherb FACW Eriobotrya japonica Loquat UPL Extriplex californica California Mock Saltbush FAC Epilobium luteum Yellow Willowherb FACW Eriocaulon cinereum Ashy Pipewort OBL Extriplex joaquiniana San Joaquin Mock Saltbush FACU Epilobium minutum Chaparral Willowherb FACU Eriocaulon microcephalum Small-Head Pipewort OBL Fallopia convolvulus Black-Bindweed FACU Epilobium obcordatum Rockfringe FACU Eriochloa acuminata Taper-Tip Cup Grass FACW Fallopia dumetorum Corpse Black-Bindweed FACU Epilobium oreganum Grants Pass Willowherb OBL Eriochloa aristata Bearded Cup Grass FACW Fatoua villosa Hairy Crabweed FAC Epilobium oregonense Oregon Willowherb OBL Eriochloa contracta Prairie Cup Grass FAC Festuca californica California Fescue FACU Epilobium pallidum Large-Flower Willowherb FAC Eriochloa fatmensis Tropical Cup Grass FAC Festuca idahoensis Bluebunch Fescue FACU Epilobium palustre Marsh Willowherb OBL Eriogonum ampullaceum Mono Wild Buckwheat FACU Festuca ovina Sheep Fescue FACU Epilobium saximontanum Rocky Mountain Willowherb FACW Eriogonum argophyllum Sulphur Hot Springs Wild Buckwheat Festuca rubra Red Fescue FAC Epilobium siskiyouense Siskiyou Willowherb FACW FACW Festuca subulata Bearded Fescue FACU Epilobium suffruticosum Shrubby Willowherb FACU Eriogonum ovalifolium Cushion Wild Buckwheat FACU Festuca trachyphylla Hard Fescue UPL Epilobium torreyi Brook Willowherb FACW Eriophorum angustifolium Tall Cotton-Grass OBL Ficus carica Common Fig FACU Epipactis gigantea Giant Helleborine OBL Eriophorum callitrix Arctic Cotton-Grass FACW Fimbristylis annua Annual Fimbry FAC Epipactis helleborine Helleborine FACU Eriophorum chamissonis Chamisso's Cotton-Grass OBL Fimbristylis autumnalis Slender Fimbry OBL Equisetum X ferrissii FACW Eriophorum crinigerum Meadow's Cotton-Grass OBL Fimbristylis puberula Hairy Fimbry FACW Equisetum X litorale OBL Eriophorum gracile Slender Cotton-Grass OBL Fimbristylis thermalis Hot Springs Fimbry OBL Equisetum X mackaii FACW Eriophorum scheuchzeri White Cotton-Grass OBL Fimbristylis vahlii Vahl's Fimbry FACW Equisetum X nelsonii FACW Eriophorum viridicarinatum Tassel Cotton-Grass OBL Flaveria campestris Alkali Yellowtops FACW Equisetum arvense Field Horsetail FAC Erodium botrys Long-Beak Stork's-Bill FACU Flaveria chlorifolia Clasping Yellowtops FACW Equisetum fluviatile Water Horsetail OBL Eryngium alismifolium Modoc Eryngo FACW Flaveria trinervia Clustered Yellowtops FAC Equisetum hyemale Tall Scouring-Rush FACW Eryngium aristulatum California Eryngo OBL Fleischmannia sonorae Sonoran Slender-Thoroughwort FAC Floerkea proserpinacoides False Mermaidweed FACW Geocaulon lividum False Toadflax FAC Helenium amarum Yellowdicks FACU Forestiera pubescens Stretchberry FACU Geranium caespitosum Purple Cluster Crane's-Bill FAC Helenium arizonicum Arizona Sneezeweed FACW Fragaria chiloensis Beach Strawberry FACU Geranium californicum California Crane's-Bill FAC Helenium autumnale Fall Sneezeweed FACW Fragaria vesca Woodland Strawberry UPL Geranium richardsonii White Crane's-Bill FACU Helenium bigelovii Bigelow's Sneezeweed FACW Fragaria virginiana Virginia Strawberry FACU Geranium robertianum Lesser Herbrobert FACU Helenium bolanderi Coastal Sneezeweed FACW Frangula alnus Glossy False Buckthorn FAC Geranium viscosissimum Sticky Purple Crane's-Bill FAC Helenium microcephalum Small-Head Sneezeweed FACW Frangula betulifolia Birch-Leaf False Buckthorn FAC Geum aleppicum Yellow Avens FAC Helenium puberulum Rosilla FACW Frangula obovata FAC Geum macrophyllum Large-Leaf Avens FACW Helenium thurberi Thurber's Sneezeweed OBL Frangula purshiana Cascara False Buckthorn FACU Geum rivale Purple Avens FACW Helianthella quinquenervis Nodding Dwarf-Sunflower FACU Frankenia palmeri Palmer's Sea-Heath FACW Geum rossii Ross' Avens FACU Helianthus annuus Common Sunflower FACU Frankenia salina Alkali Sea-Heath FACW Geum triflorum Old-Man's-Whiskers FACU Helianthus bolanderi Bolander's Sunflower FAC Fraxinus americana White Ash FACU Githopsis diffusa San Gabriel Bluecup FAC Helianthus californicus California Sunflower OBL Fraxinus latifolia Oregon Ash FACW Githopsis specularioides Common Bluecup FACU Helianthus ciliaris Texas-Blueweed FAC Fraxinus pennsylvanica Green Ash FACW Glechoma hederacea Groundivy FACU Helianthus exilis Serpentine Sunflower FACU Fraxinus velutina Velvet Ash FAC Gleditsia triacanthos Honey-Locust FAC Helianthus grosseserratus Saw-Tooth Sunflower FAC Fritillaria agrestis Stinkbells FAC Glehnia littoralis American Silvertop UPL Helianthus heterophyllus Variable-Leaf Sunflower OBL Fuchsia magellanica Hardy Fuchsia FACU Glinus lotoides Lotus Sweetjuice OBL Helianthus maximiliani Maximilian Sunflower UPL Fuirena simplex Western Umbrella Sedge OBL Glinus radiatus Spreading Sweetjuice FACW Helianthus nuttallii Nuttall's Sunflower FACW Fuirena squarrosa Hairy Umbrella Sedge OBL Glyceria X occidentalis OBL Helianthus paradoxus Trans-Pecos Sunflower FACW Funastrum cynanchoides Fringed Twinevine FACU Glyceria borealis Small Floating Manna Grass OBL Helianthus tuberosus Jerusalem-Artichoke FACU Funkiella confusa Rimrock Ladies'-Braids FAC Glyceria declinata Waxy Manna Grass FACW Heliopsis helianthoides Smooth Oxeye FACU Gaillardia flava Yellow Blanket-Flower FACU Glyceria elata Tall Manna Grass OBL Heliotropium curassavicum Seaside Heliotrope FACU Gaillardia pulchella Firewheel FACU Glyceria fluitans Water Manna Grass OBL Heliotropium glabriusculum Green-Eye Heliotrope FACW Galeopsis tetrahit Brittle-Stem Hemp-Nettle FACU Glyceria grandis American Manna Grass OBL Heliotropium greggii Fragrant Heliotrope FAC Galinsoga parviflora Gallant-Soldier UPL Glyceria leptostachya Slender-Spike Manna Grass OBL Heliotropium molle Soft Heliotrope FACW Galinsoga quadriradiata Shaggy-Soldier UPL Glyceria striata Fowl Manna Grass OBL Heliotropium procumbens Four-Spike Heliotrope FACW Galium aparine Sticky-Willy FACU Glycyrrhiza lepidota American Licorice FAC Helminthotheca echioides Akan Asante FAC Galium boreale Northern Bedstraw FACU Gnaphalium exilifolium Slender Cudweed FACW Helosciadium nodiflorum Fool's-Watercress OBL Galium circaezans Licorice Bedstraw FACU Gnaphalium palustre Western Marsh Cudweed FACW Hemarthria altissima Limpo Grass FACW Galium divaricatum Lamarck's Bedstraw FACU Gnaphalium uliginosum Marsh Cudweed FAC Hemerocallis fulva Orange Day-Lily FACU Galium mexicanum Mexican Bedstraw FAC Goodmania luteola Yellow Spinecape FACW Hemieva ranunculifolia Buttercup Hemieva FAC Galium microphyllum Bracted Bedstraw FACU Goodyera oblongifolia Green-Leaf Rattlesnake-Plantain Heracleum maximum American Cow-Parsnip FACW Galium mollugo White Bedstraw FACU FACU Hesperevax caulescens Dwarf Pygmy-Cudweed OBL Galium parisiense Wall Bedstraw UPL Goodyera repens Dwarf Rattlesnake-Plantain FACU Hesperevax sparsiflora Erect Pygmy-Cudweed FACU Galium trifidum Three-Petal Bedstraw FACW Gossypium hirsutum Upland Cotton UPL Hesperis matronalis Mother-of-the-Evening FACU Galium triflorum Fragrant Bedstraw FACU Graphephorum wolfii FACU Hesperochiron californicus California Monkey-Fiddle FACU Galium uncinulatum Bristly Bedstraw FAC Gratiola ebracteata Bractless Hedge-Hyssop OBL Hesperochiron pumilus Dwarf Monkey-Fiddle FAC Gamochaeta pensylvanica Pennsylvania Everlasting UPL Gratiola heterosepala Boggs Lake Hedge-Hyssop OBL Heteranthera dubia Grass-Leaf Mud-Plantain OBL Gamochaeta purpurea Spoon-Leaf Purple Everlasting FACU Gratiola neglecta Clammy Hedge-Hyssop OBL Heteranthera limosa Blue Mud-Plantain OBL Gastridium phleoides Nit Grass FACU Grevillea robusta Silk-Oak UPL Heteranthera reniformis Kidney-Leaf Mud-Plantain OBL Gaultheria humifusa Alpine Spicy-Wintergreen FACW Grindelia camporum Great Valley Gumweed FACW Heterocodon rariflorum Western Pearlflower FACW Gaultheria ovatifolia Western Teaberry FAC Grindelia ciliata Spanishgold FACU Heteropogon contortus Twisted Tanglehead FACU Gaultheria shallon Salal FACU Grindelia fraxinipratensis Ash Meadows Gumweed FACW Heterotheca oregona Oregon False Golden-Aster FACU Gayophytum humile Dwarf Groundsmoke FAC Grindelia hirsutula Hairy Gumweed FACW Heterotheca shevockii Shevock's False Golden-Aster FACU Gayophytum racemosum Black-Foot Groundsmoke FAC Grindelia integrifolia Puget Sound Gumweed FACW Heuchera chlorantha Tall Alumroot FACU Gentiana affinis Pleated Gentian FACU Grindelia nana Idaho Gumweed FACW Heuchera rubescens Pink Alumroot UPL Gentiana algida Whitish Gentian FACW Grindelia squarrosa Curly-Cup Gumweed FACU Hexalectris spicata Spiked Crested-Coralroot UPL Gentiana calycosa Rainier Pleated Gentian FACW Grindelia stricta Oregon Gumweed FACW Hibiscus moscheutos Crimson-Eyed Rose-Mallow OBL Gentiana douglasiana Swamp Gentian OBL Gymnocarpium dryopteris Northern Oak Fern FAC Hieracium triste Woolly Hawkweed FACU Gentiana fremontii Moss Gentian FACW Gymnosteris parvula Small-Flower Starlet FAC Hippuris montana Mountain Mare's-Tail FACW Gentiana glauca Pale Gentian FAC Habenaria quinqueseta Long-Horn False Rein Orchid FACW Hippuris vulgaris Common Mare's-Tail OBL Gentiana newberryi Alpine Gentian FACW Hackelia floribunda Many-Flower Stickseed FACU Hoffmannseggia glauca Waxy Rush-Pea FACU Gentiana parryi Parry's Gentian FAC Hackelia micrantha Blue Stickseed FACU Hoita macrostachya Large Leather-Root OBL Gentiana prostrata Pygmy Gentian FACW Hackelochloa granularis Pit-Scale Grass UPL Hoita orbicularis Round-Leaf Leather-Root OBL Gentiana sceptrum King's-Scepter Gentian OBL Hainardia cylindrica Barb Grass FACW Holcus lanatus Common Velvet Grass FAC Gentiana setigera Mendocino Gentian OBL Halenia rothrockii Mt. Graham Spurred-Gentian FAC Holcus mollis Creeping Velvet Grass FAC Gentianella amarella Autumn Dwarf-Gentian FACW Haloragis erecta Erect Seaberry FAC Holodiscus discolor Creambush FACU Gentianella propinqua Four-Part Dwarf-Gentian FACW Hamamelis virginiana American Witch-Hazel FACU Holozonia filipes Whitecrown FACU Gentianella wrightii Wright's Dwarf-Gentian OBL Harrimanella stelleriana Alaska Bell-Heather FACU Hopia obtusa Vine-Mesquite FACU Gentianopsis barbellata Perennial Fringed-Gentian FACW Hastingsia alba White Rush-Lily OBL Hordeum arizonicum Arizona Barley FAC Gentianopsis holopetala Sierran Fringed-Gentian OBL Hedera helix English Ivy FACU Hordeum brachyantherum Meadow Barley FACW Gentianopsis simplex One-Flower Fringed-Gentian FACW Hedychium flavescens Cream Ginger-Lily FAC Hordeum depressum Dwarf Barley FACW Gentianopsis thermalis Rocky Mountain Fringed-Gentian Hedysarum alpinum Alpine Sweet-Vetch FACU Hordeum intercedens Bob-Tail Barley FAC FACW Heimia salicifolia Shrubby-Yellowcrest FACW Hordeum jubatum Fox-Tail Barley FAC Hordeum marinum Seaside Barley FAC Isocoma acradenia Alkali Jimmyweed FACU Juncus elliottii Elliott's Rush FACW Hordeum murinum Wall Barley FACU Isocoma arguta Contra Costa Jimmyweed FACU Juncus ensifolius Dagger-Leaf Rush FACW Hordeum pusillum Little Barley FACU Isocoma menziesii Variable Jimmyweed FAC Juncus falcatus Sickle-Leaf Rush FACW Horkelia bolanderi Border Honeydew FAC Isoetes bolanderi Bolander's Quillwort OBL Juncus filiformis Thread Rush FACW Horkelia congesta Sierran Honeydew FACU Isoetes echinospora Spiny-Spore Quillwort OBL Juncus gerardii Saltmarsh Rush FACW Horkelia yadonii Santa Lucia Honeydew FACU Isoetes howellii Howell's Quillwort OBL Juncus hallii Hall's Rush FAC Hornungia procumbens Ovalpurse FAC Isoetes melanopoda Black-Foot Quillwort OBL Juncus hemiendytus Herman's Dwarf Rush OBL Hosackia alamosana Sonoran Deer-Vetch OBL Isoetes minima Midget Quillwort FACW Juncus interior Inland Rush FAC Hosackia gracilis Harlequin Deer-Vetch FACW Isoetes nuttallii Nuttall's Quillwort OBL Juncus kelloggii Kellogg's Dwarf Rush FACW Hosackia oblongifolia Streambank Deer-Vetch OBL Isoetes occidentalis Western Quillwort OBL Juncus leiospermus Red Bluff Dwarf Rush OBL Hosackia pinnata Meadow Deer-Vetch FACW Isoetes orcuttii Orcutt's Quillwort OBL Juncus lescurii Salt Rush FACW Hosackia rosea Rosy Deer-Vetch UPL Isolepis carinata Keeled Lateral-Bulrush OBL Juncus longistylis Long-Style Rush FACW Houstonia pusilla Tiny Bluet UPL Isolepis cernua Low Lateral-Bulrush OBL Juncus luciensis Santa Lucia Dwarf Rush OBL Houstonia wrightii Pygmy Bluet FACU Isolepis prolifera Proliferous Lateral-Bulrush OBL Juncus macrandrus Long-Anther Rush OBL Howellia aquatilis Water Howellwort OBL Isolepis setacea Bristle-Leaf Lateral-Bulrush FACW Juncus macrophyllus Long-Leaf Rush FACW Humulus lupulus Common Hop FACU Iva annua Annual Marsh-Elder FAC Juncus marginatus Bog Rush FACW Huperzia haleakalae Pacific Fir-Moss FACU Iva axillaris Deer-Root FAC Juncus mertensianus Mertens' Rush OBL Huperzia lucidula Shining Fir-Moss FACW Iva hayesiana San Diego Marsh-Elder FACW Juncus mexicanus Mexican Rush FACW Hydrilla verticillata Water-Thyme OBL Ivesia kingii King's Mousetail FAC Juncus nevadensis Sierran Rush FACW Hydrocotyle prolifera Proliferous Marsh-Pennywort OBL Ivesia lycopodioides Clubmoss Mousetail FAC Juncus nodatus Stout Rush OBL Hydrocotyle ranunculoides Floating Marsh-Pennywort OBL Ivesia pickeringii Silky Mousetail OBL Juncus nodosus Knotted Rush OBL Hydrocotyle sibthorpioides Lawn Marsh-Pennywort FACW Ivesia pityocharis Pine Nut Mountain Mousetail FACW Juncus occidentalis Western Rush FACW Hydrocotyle umbellata Many-Flower Marsh-Pennywort OBL Ivesia sericoleuca Plumas Mousetail FAC Juncus orthophyllus Straight-Leaf Rush FACW Hydrocotyle verticillata Whorled Marsh-Pennywort OBL Jacobaea vulgaris Stinking Willie FACU Juncus oxymeris Pointed Rush FACW Hydrophyllum fendleri Fendler's Waterleaf FAC Jaegeria hirta Botao-de-Ouro FACU Juncus parryi Parry's Rush FAC Hydrophyllum occidentale Squaw-Lettuce FACW Jamesia americana Five-Petal Cliffbush FACU Juncus patens Spreading Rush FACW Hydrophyllum tenuipes Pacific Waterleaf FACW Jaumea carnosa Marsh Jaumea OBL Juncus phaeocephalus Brown-Head Rush FACW Hymenoxys hoopesii Owl's-Claws FAC Jensia yosemitana Yosemite Annual-Tarweed FACU Juncus regelii Regel's Rush FACW Hypericum anagalloides Tinker's-Penny OBL Juglans californica Southern California Walnut FACU Juncus rugulosus Wrinkled Rush OBL Hypericum boreale Northern St. John's-Wort OBL Juglans cinerea White Walnut FACU Juncus saximontanus Rocky Mountain Rush FACW Hypericum majus Greater Canadian St. John's-Wort Juglans hindsii Northern California Walnut FAC Juncus scirpoides Needle-Pod Rush FACW FACW Juglans major Arizona Walnut FAC Juncus supiniformis Hairy-Leaf Rush OBL Hypericum mutilum Dwarf St. John's-Wort FACW Juglans microcarpa Little Walnut FAC Juncus tenuis Lesser Poverty Rush FACW Hypericum perforatum Common St. John's-Wort FACU Juglans nigra Black Walnut UPL Juncus textilis Basket Rush FACW Hypericum scouleri Scouler's St. John's-Wort FACW Juncus acuminatus Knotty-Leaf Rush OBL Juncus tiehmii Nevada Rush FACW Hypochaeris radicata Hairy Cat's-Ear FACU Juncus acutus Spiny Rush FACW Juncus torreyi Torrey's Rush FACW Hypoxis hirsuta Eastern Yellow Star-Grass FACW Juncus albescens Northern White Rush OBL Juncus triformis Yosemite Dwarf Rush FACW Ilex aquifolium English Holly FACU Juncus alpinoarticulatus Northern Green Rush OBL Juncus triglumis Three-Flower Rush FACW Iliamna grandiflora Large-Flower Wild Hollyhock FACW Juncus anthelatus Kentucky Rush FACW Juncus uncialis Inch-High Rush OBL Iliamna rivularis Streambank Wild Hollyhock FACW Juncus articulatus Joint-Leaf Rush OBL Juncus vaseyi Vasey's Rush FACW Impatiens aurella Pale-Yellow Touch-Me-Not FACW Juncus balticus Baltic Rush FACW Juncus xiphioides Iris-Leaf Rush OBL Impatiens capensis Spotted Touch-Me-Not FACW Juncus biglumis Two-Flower Rush OBL Juniperus communis Common Juniper FACU Impatiens ecalcarata Spurless Touch-Me-Not FACW Juncus bolanderi Bolander's Rush OBL Juniperus deppeana Alligator Juniper FACU Impatiens glandulifera Policeman's-Helmet FACW Juncus brachyphyllus Short-Leaf Rush FAC Juniperus horizontalis Creeping Juniper FACU Imperata brevifolia California Satintail FAC Juncus brevicaudatus Narrow-Panicle Rush OBL Juniperus virginiana Eastern Red-Cedar FACU Indigofera lindheimeriana Lindheimer's Indigo FAC Juncus breweri Brewer's Rush FACW Justicia americana American Water-Willow OBL Inula helenium Elecampane FAC Juncus bryoides Moss Dwarf Rush OBL Kalmia microphylla Alpine-Laurel OBL Ipomoea aquatica Swamp-Cabbage OBL Juncus bufonius Toad Rush FACW Kickxia elatine Sharp-Leaf Cancerwort UPL Ipomoea cairica Mile-a-Minute-Vine FACU Juncus capillaris Hairy-Stem Dwarf Rush FACW Kobresia myosuroides Pacific Bog Sedge FACU Ipomoea cordatotriloba Tievine FAC Juncus capitatus Leafy-Bract Dwarf Rush FACU Kobresia sibirica Siberian Bog Sedge FAC Ipomoea hederacea Ivy-Leaf Morning-Glory FACU Juncus castaneus Chestnut Rush FACW Kobresia simpliciuscula Simple Bog Sedge FACW Ipomoea indica Ocean-Blue Morning-Glory FAC Juncus chlorocephalus Green-Head Rush FACW Koenigia islandica Island-Purslane OBL Ipomoea lacunosa Whitestar FACW Juncus compressus Round-Fruit Rush OBL Krigia biflora Two-Flower Dwarf-Dandelion FACU Ipomoea lindheimeri Lindheimer's Morning-Glory UPL Juncus confusus Colorado Rush FAC Kumlienia hystricula Waterfall False Buttercup OBL Ipomoea purpurea Common Morning-Glory UPL Juncus cooperi Cooper's Rush FACW Kummerowia stipulacea Korean-Clover FACU Ipomoea quamoclit Cypress-Vine FACU Juncus covillei Coville's Rush FACW Kummerowia striata Japanese-Clover FACU Ipomoea triloba Littlebell FACU Juncus dichotomus Forked Rush FACW Kyllinga brevifolia Short-Leaf Spike Sedge FACW Ipomoea violacea Heavenly-Blue Morning-Glory FAC Juncus diffusissimus Slim-Pod Rush FACW Kyllinga odorata Fragrant Spike Sedge FACW Iresine diffusa Juba's-Bush FAC Juncus digitatus Finger Rush OBL Lachnagrostis filiformis Common Blown Grass FACW Iris giganticaerulea Giant Blue Iris OBL Juncus drummondii Drummond's Rush FACW Lactuca biennis Wild Blue Lettuce FAC Iris hartwegii Rainbow Iris FACU Juncus dubius Mariposa Rush FACW Lactuca canadensis Canadian Blue Lettuce FACU Iris longipetala Coast Iris FACW Juncus dudleyi Dudley's Rush FAC Lactuca graminifolia Grass-Leaf Lettuce FAC Iris missouriensis Rocky Mountain Iris FACW Juncus duranii Duran's Rush OBL Lactuca ludoviciana Louisiana Lettuce FAC Iris pseudacorus Pale-Yellow Iris OBL Juncus effusus Lamp Rush FACW Lactuca saligna Willow-Leaf Lettuce UPL Lactuca serriola Prickly Lettuce FACU Leucospora multifida Narrow-Leaf Paleseed FACW Loiseleuria procumbens Alpine-Azalea FACW Lactuca tatarica Russian Blue Lettuce FAC Leucothoe davisiae Sierran Doghobble FACW Lolium perenne Perennial Rye Grass FAC Laennecia coulteri Coulter's Woolwort FAC Lewisia brachycalyx Short-Sepal Bitter-Root FACU Lomatium bicolor Wasatch Desert-Parsley FACU Lamarckia aurea Golden-Top Grass FACU Lewisia cantelovii Cantelow's Bitter-Root OBL Lomatium caruifolium Alkali Desert-Parsley FACW Landoltia punctata Dotted Duckmeat OBL Lewisia pygmaea Alpine Bitter-Root FACU Lomatium cookii Agate Desert-Parsley OBL Lantana camara Hedgeflower FACU Leymus cinereus Great Basin Lyme Grass FAC Lomatium nudicaule Indian-Consumption-Plant UPL Lantana urticoides West Indian Shrub-Verbena FACU Leymus condensatus Giant Lyme Grass FACU Lomatogonium rotatum Marsh-Felwort OBL Lapsana communis Common Nipplewort FAC Leymus mollis American Lyme Grass FACU Lonicera X bella FACU Larix occidentalis Western Larch FACU Leymus simplex Alkali Wildrye FAC Lonicera cauriana Sweet-Berry Honeysuckle FAC Lasthenia burkei Burke's Goldfields OBL Leymus triticoides Beardless Lyme Grass FAC Lonicera conjugialis Purple-Flower Honeysuckle FAC Lasthenia californica California Goldfields FACU Liatris lancifolia Lance-Leaf Gayfeather FAC Lonicera hispidula Pink Honeysuckle FACU Lasthenia chrysantha Alkali-Sink Goldfields FAC Liatris ligulistylis Strap-Style Gayfeather FAC Lonicera involucrata Four-Line Honeysuckle FAC Lasthenia conjugens Contra Costa Goldfields FACW Ligusticum canbyi Canby's Wild Lovage FAC Lonicera japonica Japanese Honeysuckle FACU Lasthenia ferrisiae Ferris' Goldfields OBL Ligusticum grayi Sheep Wild Lovage FAC Lonicera morrowii Morrow's Honeysuckle UPL Lasthenia fremontii Fremont's Goldfields OBL Ligusticum porteri Porter's Wild Lovage FACU Lonicera tatarica Twinsisters UPL Lasthenia glaberrima Smooth Goldfields OBL Ligusticum tenuifolium Slender-Leaf Wild Lovage FACW Lonicera utahensis Rocky Mountain Honeysuckle FAC Lasthenia glabrata Yellow-Ray Goldfields FACW Ligusticum verticillatum Idaho Wild Lovage FACW Lorandersonia linifolia Spear-Leaf False Geesewood FAC Lasthenia minor Coastal Goldfields FACW Ligustrum japonicum Japanese Privet FACU Lotus corniculatus Garden Bird's-Foot-Trefoil FAC Lasthenia platycarpha Alkali Goldfields FACW Ligustrum vulgare European Privet UPL Lotus tenuis Narrow-Leaf Bird's-Foot-Trefoil FACU Lathyrus hirsutus Singletary Vetchling FAC Lilaeopsis masonii Mason's Grasswort OBL Lotus uliginosus Large Bird's-Foot-Trefoil FACU Lathyrus japonicus Sea Vetchling FACU Lilaeopsis occidentalis Western Grasswort OBL Ludwigia grandiflora Large-Flower Primrose-Willow OBL Lathyrus jepsonii Delta Vetchling OBL Lilaeopsis schaffneriana Schaffner's Grasswort OBL Ludwigia octovalvis Mexican Primrose-Willow OBL Lathyrus lanszwertii Nevada Vetchling UPL Lilium bolanderi Thimble Lily FACW Ludwigia palustris Marsh Primrose-Willow OBL Lathyrus palustris Marsh Vetchling OBL Lilium kelleyanum Kelley's Lily OBL Ludwigia peploides Floating Primrose-Willow OBL Lathyrus pusillus Tiny Vetchling FAC Lilium maritimum Coastal Lily FACW Ludwigia polycarpa Many-Fruit Primrose-Willow OBL Lathyrus sphaericus Grass Vetchling FACU Lilium pardalinum Leopard Lily FACW Ludwigia repens Creeping Primrose-Willow OBL Lathyrus venosus Veiny Vetchling FAC Lilium parryi Lemon Lily OBL Luetkea pectinata Partridgefoot FACU Layia chrysanthemoides Smooth Tidytips FACW Lilium parvum Sierran Tiger Lily OBL Lupinus arcticus Arctic Lupine FACU Layia heterotricha Pale-Yellow Tidytips FAC Lilium philadelphicum Wood Lily FAC Lupinus covillei Shaggy Lupine FACU Layia munzii Munz's Tidytips FACW Limnanthes alba White Meadowfoam FACW Lupinus kingii King's Lupine UPL Leersia hexandra Southern Cut Grass OBL Limnanthes bakeri Baker's Meadowfoam OBL Lupinus latifolius Broad-Leaf Lupine FACW Leersia oryzoides Rice Cut Grass OBL Limnanthes douglasii Douglas' Meadowfoam OBL Lupinus padre-crowleyi Father Crowley's Lupine FACU Leersia virginica White Grass FACW Limnanthes floccosa Woolly Meadowfoam OBL Lupinus polyphyllus Blue-Pod Lupine FAC Legenere limosa False Venus'-Looking-Glass OBL Limnanthes montana Mountain Meadowfoam OBL Lupinus prunophilus Hairy Big-Leaf Lupine FACU Lemna aequinoctialis Lesser Duckweed OBL Limnanthes pumila OBL Lupinus rivularis River-Bank Lupine FACU Lemna gibba Inflated Duckweed OBL Limnanthes vinculans Cunningham Marsh Meadowfoam Luzula arcuata Curved Wood-Rush UPL Lemna minor Common Duckweed OBL OBL Luzula comosa Pacific Wood-Rush FAC Lemna minuta Least Duckweed OBL Limnobium spongia American Spongeplant OBL Luzula multiflora Common Wood-Rush FACU Lemna obscura Little Duckweed OBL Limnophila X ludoviciana OBL Luzula parviflora Small-Flower Wood-Rush FAC Lemna trisulca Ivy-Leaf Duckweed OBL Limonium binervosum Rock Sea-Lavender FAC Luzula spicata Spiked Wood-Rush FACU Lemna turionifera Turion Duckweed OBL Limonium brassicifolium Tree Sea-Lavender FAC Luzula subcapitata Colorado Wood-Rush OBL Lemna valdiviana Pale Duckweed OBL Limonium californicum Marsh-Rosemary FACW Luzula subcongesta Donner Wood-Rush FACW Leonotis nepetifolia Christmas-Candlestick FACU Limonium limbatum Trans-Pecos Sea-Lavender FACW Lycium torreyi Squawthorn FAC Leontodon saxatilis Lesser Hawkbit FACU Limonium ramosissimum Algerian Sea-Lavender FACW Lycopodiella inundata Northern Bog Club-Moss OBL Lepidium acutidens FAC Limonium sinuatum Wavy-Leaf Sea-Lavender FACW Lycopodium clavatum Running Ground-Pine FAC Lepidium appelianum Globe-Pod Pepperwort UPL Limosella acaulis Owyhee Mudwort OBL Lycopodium lagopus Single-Cone Ground-Pine FACU Lepidium davisii Davis' Pepperwort FACW Limosella aquatica Awl-Leaf Mudwort OBL Lycopus americanus Cut-Leaf Water-Horehound OBL Lepidium densiflorum Miner's Pepperwort UPL Limosella australis Welsh Mudwort OBL Lycopus asper Rough Water-Horehound OBL Lepidium dictyotum Alkali Pepperwort FAC Limosella pubiflora Chiricahua Mountain Mudwort OBL Lycopus uniflorus Northern Water-Horehound OBL Lepidium flavum Yellow Pepperwort UPL Lindernia dubia Yellow-Seed False Pimpernel OBL Lysichiton americanus Yellow-Skunk-Cabbage OBL Lepidium latifolium Broad-Leaf Pepperwort FAC Linnaea borealis American Twinflower FACU Lysiloma watsonii Little-Leaf False Tamarind FACU Lepidium latipes San Diego Pepperwort FACW Liparis loeselii Yellow Wide-Lip Orchid FACW Lysimachia arvensis Scarlet Yellow-Loosestrife FAC Lepidium nitidum Shining Pepperwort FAC Lipocarpha aristulata Awned Halfchaff Sedge FACW Lysimachia ciliata Fringed Yellow-Loosestrife FACW Lepidium oxycarpum Forked Pepperwort OBL Lipocarpha drummondii Drummond's Halfchaff Sedge FACW Lysimachia hybrida Lowland Yellow-Loosestrife OBL Lepidium perfoliatum Clasping Pepperwort FACU Lipocarpha micrantha Small-Flower Halfchaff Sedge OBL Lysimachia maritima Sea-Milkwort FACW Lepidium thurberi Thurber's Pepperwort FACU Lipocarpha occidentalis Western Halfchaff Sedge FACW Lysimachia minima Chaffweed FACW Lepidium virginicum Poorman's-Pepperwort FACU Liquidambar styraciflua Sweet-Gum FAC Lysimachia nummularia Creeping-Jenny FACW Lepidospartum squamatum California Scalebroom FACU Lloydia serotina Common Alp-Lily FACU Lysimachia punctata Large Yellow-Loosestrife OBL Leptarrhena pyrolifolia Pearleaf FACW Lobelia anatina Apache Lobelia FACW Lysimachia terrestris Swampcandles OBL Leptochloa crinita False Rhodes Grass FACU Lobelia berlandieri Berlandier's Lobelia FAC Lysimachia thyrsiflora Tufted Yellow-Loosestrife OBL Leptosiphon bicolor True Babystars UPL Lobelia cardinalis Cardinal-Flower OBL Lysimachia vulgaris Garden Yellow-Loosestrife FACW Leptosiphon nuttallii Nuttall's Perennial Gily-Flower FACU Lobelia dortmanna Water Lobelia OBL Lythrum alatum Wing-Angle Loosestrife OBL Leucaena leucocephala White Leadtree FACU Lobelia fenestralis Fringe-Leaf Lobelia FACU Lythrum californicum California Loosestrife OBL Leucanthemum vulgare Ox-Eye Daisy UPL Lobelia kalmii Brook Lobelia OBL Lythrum hyssopifolium Hyssop Loosestrife OBL Lythrum portula Spatula-Leaf Loosestrife OBL Mertensia viridis Green Bluebells FACU Mimulus rubellus Little Red-Stem Monkey-Flower FAC Lythrum salicaria Purple Loosestrife OBL Mesembryanthemum cordifolium Mimulus suksdorfii Miniature Monkey-Flower FACU Lythrum tribracteatum Three-Bract Loosestrife OBL Heart-Leaf Iceplant FAC Mimulus tilingii Subalpine Monkey-Flower OBL Maclura pomifera Osage-Orange UPL Mesembryanthemum crystallinum Mimulus tricolor Tricolor Monkey-Flower OBL Macroptilium atropurpureum Purple Bush-Bean FACU Crystalline Iceplant FACU Mimulus washingtonensis Washington Monkey-Flower OBL Madia glomerata Mountain Tarplant FACU Mesembryanthemum nodiflorum Minuartia californica California Stitchwort FACU Mahonia aquifolium Holly-Leaf Oregon-Grape UPL Slender-Leaf Iceplant FACU Minuartia obtusiloba Alpine Stitchwort FACU Mahonia nervosa Cascade Oregon-Grape FACU Micranthes aprica Sierran Pseudosaxifrage FACW Minuartia rubella Boreal Stitchwort FACU Maianthemum dilatatum Two-Leaf False Solomon's-Seal Micranthes californica California Pseudosaxifrage FACW Minuartia stricta Bog Stitchwort FAC FAC Micranthes ferruginea Russet-Hair Pseudosaxifrage FAC Mirabilis jalapa Marvel-of-Peru UPL Maianthemum racemosum Feathery False Solomon's-Seal FAC Micranthes fragosa Cliff Pseudosaxifrage FACW Mirabilis nyctaginea Heart-Leaf Four-O'clock FACU Maianthemum stellatum Starry False Solomon's-Seal FACU Micranthes howellii Howell's Pseudosaxifrage FAC Miscanthus sinensis Chinese Silver Grass FACU Malacothamnus abbottii Monterey Bush-Mallow FACW Micranthes integrifolia Columbian Pseudosaxifrage FACW Mitella nuda Bare-Stem Bishop's-Cap FACW Malacothamnus davidsonii Sand Bush-Mallow FACU Micranthes lyallii Red-Stem Pseudosaxifrage FACW Mitella stauropetala Side-Flower Bishop's-Cap FAC Malaxis monophyllos White Adder's-Mouth Orchid FACW Micranthes marshallii Hupa Valley Pseudosaxifrage OBL Mitellastra caulescens Mock Millerwort FAC Malephora crocea Coppery-Mesemb FACU Micranthes nelsoniana Heart-Leaf Pseudosaxifrage FAC Mitracarpus hirtus Tropical Girdlepod FACU Malus fusca Oregon Crabapple FAC Micranthes nidifica Peak Pseudosaxifrage FACW Modiola caroliniana Carolina Bristle-Mallow FAC Malvastrum coromandelianum Three-Lobe False Mallow FAC Micranthes occidentalis Mountain Pseudosaxifrage FAC Moehringia lateriflora Blunt-Leaf Grove-Sandwort FACU Malvaviscus arboreus Wax-Mallow FACU Micranthes odontoloma Streambank Pseudosaxifrage FACW Moehringia macrophylla Large-Leaf Grove-Sandwort FAC Malvella leprosa Alkali-Mallow FACU Micranthes oregana Bog Pseudosaxifrage OBL Mollugo cerviana Thread-Stem Carpetweed FAC Marrubium vulgare White Horehound FACU Micranthes rhomboidea Diamond-Leaf Pseudosaxifrage FACW Mollugo verticillata Green Carpetweed FACU Marsilea drummondii Drummond's Water-Clover OBL Micranthes tolmiei Tolmie's Alpine Pseudosaxifrage Momordica charantia Balsam-Pear FACU Marsilea mollis Chihuahuan Water-Clover OBL FAC Monarda fistulosa Oswego-Tea FACU Marsilea oligospora Pacific Water-Clover OBL Micropus californicus Slender Cottonseed FACU Monarda punctata Spotted Beebalm UPL Marsilea vestita Hairy Water-Clover OBL Microseris borealis Northern Silverpuffs OBL Monardella australis Southern Mountainbalm FACU Matricaria discoidea Pineapple-Weed FACU Microseris douglasii Douglas' Silverpuffs FACU Monardella linoides Flax-Leaf Mountainbalm FACU Matricaria occidentalis Valley Mayweed FACW Microseris laciniata Cut-Leaf Silverpuffs FACU Monardella odoratissima Alpine Mountainbalm FACU Mazus pumilus Japanese Mazus FACU Microsteris gracilis Annual-Phlox FACU Monardella viminea Willowy Mountainbalm FACU Mecardonia procumbens Baby-Jump-Up FACW Mimetanthe pilosa False Monkey-Flower FACW Moneses uniflora Single-Delight FACU Meconella oregana White Fairy-Poppy FAC Mimulus alsinoides Wing-Stem Monkey-Flower OBL Monochoria vaginalis Heart-Shape False Pickerelweed Medicago lupulina Black Medick FAC Mimulus angustatus Purple-Lip Pansy Monkey-Flower OBL Medicago polymorpha Toothed Medick FACU OBL Monolepis nuttalliana Nuttall's Poverty-Weed FAC Medicago sativa Alfalfa UPL Mimulus bicolor Yellow-and-White Monkey-Flower Monolopia congdonii San Joaquin Woollythread FACU Medicago truncatula Barrel Medick FACU FACU Monotropa uniflora One-Flower Indian-Pipe FACU Megathyrsus maximus Guinea Grass FAC Mimulus breviflorus Short-Flower Monkey-Flower FACW Montia chamissoi Chamisso's Candy-Flower OBL Melampodium perfoliatum Perfoliate Blackfoot FAC Mimulus breweri Brewer's Monkey-Flower FACU Montia dichotoma Dwarf Candy-Flower FAC Melampyrum lineare American Cow-Wheat FAC Mimulus cardinalis Scarlet Monkey-Flower FACW Montia fontana Fountain Candy-Flower OBL Melia azedarach China-Berry UPL Mimulus congdonii Congdon's Monkey-Flower FAC Montia howellii Howell's Candy-Flower FACW Melica bulbosa Onion Grass FACU Mimulus dentatus Coastal Monkey-Flower OBL Montia linearis Linear-Leaf Candy-Flower FAC Melica spectabilis Showy Melic Grass FAC Mimulus dentilobus Tooth-Petal Monkey-Flower OBL Montia parvifolia Little-Leaf Candy-Flower FACW Melilotus indicus Indian Sweet-Clover FACU Mimulus douglasii Brownies FACW Morella californica Pacific Bayberry FACW Melilotus officinalis Yellow Sweet-Clover FACU Mimulus eastwoodiae Eastwood's Monkey-Flower OBL Morus alba White Mulberry FACU Melinis repens Creeping Molasses Grass UPL Mimulus exiguus San Bernardino Mountain Monkey-Flower Morus microphylla Texas Mulberry FACU Melissa officinalis Lemonbalm UPL FACU Morus rubra Red Mulberry FACU Melochia pyramidata Pyramid-Flower FAC Mimulus filicaulis Slender-Stem Monkey-Flower FACW Muhlenbergia andina Fox-Tail Muhly FAC Melothria pendula Guadeloupe-Cucumber FAC Mimulus floribundus Purple-Stem Monkey-Flower OBL Muhlenbergia asperifolia Alkali Muhly FACW Mentha X gracilis FACW Mimulus glabratus Round-Leaf Monkey-Flower OBL Muhlenbergia californica California Muhly FACW Mentha X piperita FACW Mimulus glaucescens Shield-Bract Monkey-Flower OBL Muhlenbergia eludens Gravel-Bar Muhly UPL Mentha X rotundifolia FAC Mimulus guttatus Seep Monkey-Flower OBL Muhlenbergia filiformis Pullup Muhly FACW Mentha X villosa FACW Mimulus inconspicuus Small-Flower Monkey-Flower FACU Muhlenbergia frondosa Wire-Stem Muhly FACW Mentha aquatica Water Mint FACW Mimulus laciniatus Cut-Leaf Monkey-Flower FAC Muhlenbergia glomerata Spiked Muhly FACW Mentha arvensis American Wild Mint FACW Mimulus latidens Broad-Tooth Monkey-Flower OBL Muhlenbergia mexicana Mexican Muhly FAC Mentha pulegium Pennyroyal OBL Mimulus lewisii Great Purple Monkey-Flower FACW Muhlenbergia minutissima Least Muhly FAC Mentha spicata Spearmint FACW Mimulus moschatus Muskflower FACW Muhlenbergia montana Mountain Muhly UPL Mentha suaveolens Apple Mint FACW Mimulus nanus Dwarf Purple Monkey-Flower FACU Muhlenbergia pectinata Comb-Top Muhly OBL Mentzelia leucophylla Ash Meadows Blazingstar FAC Mimulus nudatus Bare Monkey-Flower OBL Muhlenbergia racemosa Green Muhly FACW Menyanthes trifoliata Buck-Bean OBL Mimulus parishii Parish's Monkey-Flower FACU Muhlenbergia ramulosa Ponderosa Muhly FACU Menziesia ferruginea Fool's-Huckleberry FACU Mimulus primuloides Yellow Creeping Monkey-Flower Muhlenbergia richardsonis Matted Muhly FAC Merremia dissecta Noyau-Vine FAC FACW Muhlenbergia rigens Deer Grass FAC Mertensia bella Oregon Bluebells FACW Mimulus pulchellus Yellow-Lip Pansy Monkey-Flower Muhlenbergia schreberi Nimblewill FACU Mertensia ciliata Tall Fringe Bluebells FACW FACW Muhlenbergia sylvatica Woodland Muhly FACW Mertensia franciscana Franciscan Bluebells OBL Mimulus purpureus Little Purple Monkey-Flower FACU Muhlenbergia uniflora Bog Muhly OBL Mertensia oblongifolia Languid-Lady FAC Mimulus pygmaeus Egg Lake Monkey-Flower OBL Muhlenbergia utilis Aparejo Grass FACW Mertensia paniculata Tall Bluebells FACW Mimulus ringens Allegheny Monkey-Flower OBL Muhlenbergia wrightii Wright's Muhly FACU Muntingia calabura Strawberry-Tree UPL Nesaea longipes Stalkflower FACW Oxalis corniculata Creeping Yellow Wood-Sorrel FACU Myoporum laetum Ngaio-Tree FACU Nicotiana attenuata Coyote Tobacco FACU Oxalis dillenii Slender Yellow Wood-Sorrel FACU Myosotis arvensis Rough Forget-Me-Not FAC Nicotiana glauca Tree Tobacco FAC Oxalis oregana Redwood-Sorrel FACU Myosotis asiatica Asian Forget-Me-Not FAC Nicotiana obtusifolia Desert Tobacco FACU Oxalis stricta Upright Yellow Wood-Sorrel FACU Myosotis discolor Yellow Scorpion-Grass FAC Nicotiana quadrivalvis Indian Tobacco FACU Oxalis trilliifolia Trillium-Leaf Wood-Sorrel FAC Myosotis laxa Bay Forget-Me-Not OBL Nicotiana repanda Fiddle-Leaf Tobacco FAC Oxypolis fendleri Fendler's Cowbane FACW Myosotis scorpioides True Forget-Me-Not FACW Nicotiana tabacum Cultivated Tobacco UPL Oxypolis occidentalis Western Cowbane OBL Myosotis sylvatica Woodland Forget-Me-Not FACU Nitrophila mohavensis Amargosa Niterwort FACW Oxyria digyna Mountain-Sorrel FACU Myosotis verna Spring Forget-Me-Not FAC Nitrophila occidentalis Boraxweed FACW Oxytropis deflexa Pendant-Pod Locoweed FACU Myosurus apetalus Bristly Mousetail OBL Nothoscordum bivalve Crowpoison FACU Oxytropis lambertii Stemless Locoweed UPL Myosurus cupulatus Arizona Mousetail FAC Nuphar polysepala OBL Oxytropis oreophila Mountain Locoweed FACU Myosurus minimus Tiny Mousetail OBL Nymphaea X thiona OBL Oxytropis parryi Parry's Locoweed FACU Myosurus sessilis Vernal-Pool Mousetail FACW Nymphaea alba European White Water-Lily OBL Oxytropis splendens Whorled Locoweed FAC Myrica hartwegii Sierran-Bayberry FAC Nymphaea mexicana Banana Water-Lily OBL Ozomelis diversifolia Angle-Leaf Mitrewort FAC Myriophyllum aquaticum Parrot's-Feather OBL Nymphaea odorata American White Water-Lily OBL Ozomelis trifida Pacific Mitrewort FAC Myriophyllum hippuroides Western Water-Milfoil OBL Nymphoides peltata Yellow Floatingheart OBL Packera bernardina San Bernardino Groundsel FACU Myriophyllum quitense Andean Water-Milfoil OBL Ocimum basilicum Sweet Basil UPL Packera bolanderi Bolander's Groundsel FAC Myriophyllum sibiricum Siberian Water-Milfoil OBL Oemleria cerasiformis Oso-Berry FACU Packera clevelandii Cleveland's Groundsel FACW Myriophyllum spicatum Eurasian Water-Milfoil OBL Oenanthe sarmentosa Pacific Water-Dropwort OBL Packera crocata Saffron Groundsel FAC Myriophyllum verticillatum Whorled Water-Milfoil OBL Oenothera biennis King's-Cureall FACU Packera debilis Weak-Stem Groundsel FACW Nabalus racemosus Purple Rattlesnake-Root FACU Oenothera canescens Spotted Evening-Primrose FAC Packera dimorphophylla Two-Leaf Groundsel FACU Najas flexilis Wavy Waternymph OBL Oenothera coloradensis FACW Packera hartiana Hart's Groundsel FACW Najas gracillima Slender Waternymph OBL Oenothera curtiflora Velvetweed FACU Packera heterophylla Dwarf Arctic Groundsel FACU Najas graminea Ricefield Waternymph OBL Oenothera elata Hooker's Evening-Primrose FACW Packera indecora Rayless Mountain Groundsel FACW Najas guadalupensis Guadalupe Waternymph OBL Oenothera flava Long-Tube Evening-Primrose FAC Packera macounii Siskiyou Mountain Groundsel FACU Najas marina Holly-Leaf Waternymph OBL Oenothera jamesii Trumpet Evening-Primrose FACW Packera obovata Round-Leaf Groundsel FACU Nama stenocarpum Mud Fiddleleaf FACW Oenothera kunthiana Kunth's Evening-Primrose FACU Packera pauciflora Rayless Alpine Groundsel FAC Nama torynophyllum Matted Fiddleleaf FACW Oenothera laciniata Cut-Leaf Evening-Primrose FAC Packera paupercula Balsam Groundsel FACW Narthecium californicum California Bog Asphodel OBL Oenothera longissima Long-Stem Evening-Primrose OBL Packera plattensis Prairie Groundsel UPL Nasturtium gambelii Gambel's Watercress OBL Oenothera organensis Organ Mountain Evening-Primrose Packera pseudaurea Streambank Groundsel FACW Nasturtium microphyllum One-Row Watercress OBL OBL Packera spellenbergii Carrizo Creek Groundsel UPL Nasturtium officinale Watercress OBL Oenothera rhombipetala Greater Four-Point Evening-Primrose Packera streptanthifolia Rocky Mountain Groundsel FACU Navarretia breweri Yellow Pincushion-Plant FAC FACU Packera subnuda Buek's Groundsel FACW Navarretia capillaris Miniature Pincushion-Plant FAC Oenothera rosea Rose Evening-Primrose FACW Packera tampicana Great Plains Groundsel FACW Navarretia cotulifolia Cotula-Leaf Pincushion-Plant OBL Oenothera texensis Texas Evening-Primrose FACW Palmerella debilis Blue Lobelia FACW Navarretia eriocephala Hoary Pincushion-Plant FAC Oenothera villosa Hairy Evening-Primrose FAC Pancratium maritimum Sea-Daffodil FACU Navarretia fossalis Vernal-Pool Pincushion-Plant OBL Olsynium douglasii Grasswidow FACU Panicum amarum Bitter Panic Grass FACU Navarretia heterandra Tehama Pincushion-Plant OBL Oncosiphon piluliferum Stinknet FACU Panicum capillare Common Panic Grass FACU Navarretia intertexta Needle-Leaf Pincushion-Plant FACW Ophioglossum californicum California Adder's-Tongue FAC Panicum coloratum Blue Panic Grass FACW Navarretia jepsonii Jepson's Pincushion-Plant FACW Ophioglossum engelmannii Limestone Adder's-Tongue FACW Panicum dichotomiflorum Fall Panic Grass FACW Navarretia leucocephala White-Flower Pincushion-Plant OBL Ophioglossum pusillum Northern Adder's-Tongue FACW Panicum flexile Wiry Panic Grass FAC Navarretia mellita Honey-Scented Pincushion-Plant Ophioglossum vulgatum Southern Adder's-Tongue FAC Panicum hallii Hall's Panic Grass UPL FAC Oplopanax horridus Devil's-Club FAC Panicum hillmanii Hillman's Panic Grass FACU Navarretia myersii Myers' Pincushion-Plant OBL Orcuttia californica California Orcutt Grass OBL Panicum repens Torpedo Grass FAC Navarretia nigelliformis Adobe Pincushion-Plant FACW Orcuttia inaequalis San Joaquin Valley Orcutt Grass Panicum virgatum Wand Panic Grass FACW Navarretia peninsularis Baja Pincushion-Plant FAC OBL Parapholis incurva Curved Sickle Grass FACU Navarretia prostrata Prostrate Pincushion-Plant OBL Orcuttia pilosa Hairy Orcutt Grass OBL Parapholis strigosa European Sickle Grass OBL Navarretia saximontana Rocky Mountain Pincushion-Plant Orcuttia tenuis Slender Orcutt Grass OBL Parathelypteris nevadensis FAC FACW Orcuttia viscida Sacramento Orcutt Grass OBL Parentucellia viscosa Yellow Glandweed FAC Navarretia squarrosa Skunkweed FACU Oreostemma alpigenum Tundra Mountaincrown FAC Parietaria hespera Rillita Pellitory FACU Navarretia subuligera Awl-Leaf Pincushion-Plant FACU Oreostemma elatum Plumas Mountaincrown FACW Parietaria pensylvanica Pennsylvania Pellitory FACU Navarretia tagetina Marigold Pincushion-Plant FACW Ornithogalum umbellatum Sleepydick FACU Parkinsonia aculeata Mexican Palo-Verde FAC Nelumbo lutea American Lotus OBL Orobanche riparia River Broom-Rape FACW Parnassia cirrata San Bernardino Grass-of-Parnassus Nemophila pedunculata Meadow Baby-Blue-Eyes FAC Orobanche uniflora Naked Broom-Rape FACU OBL Neoholmgrenia andina UPL Orogenia fusiformis California Indian-Potato FACW Parnassia fimbriata Fringed Grass-of-Parnassus OBL Neokochia americana Green-Molly FAC Orthilia secunda Sidebells FACU Parnassia kotzebuei Kotzebue's Grass-of-Parnassus Neokochia californica California-Molly FACW Orthocarpus bracteosus Rosy Owl-Clover FAC OBL Neostapfia colusana Colusa Grass OBL Orthocarpus luteus Golden-Tongue Owl-Clover FACU Parnassia palustris Marsh Grass-of-Parnassus OBL Neottia banksiana Northwestern Twayblade FACU Oryza sativa Cultivated Rice OBL Parnassia parviflora Small-Flower Grass-of-Parnassus Neottia borealis Northern Twayblade FACW Osmorhiza berteroi Mountain Sweet-Cicely FACU OBL Neottia convallarioides Broad-Lip Twayblade FAC Osmorhiza longistylis Aniseroot FACU Paronychia ahartii Ahart's Nailwort FAC Neottia cordata Heart-Leaf Twayblade FACW Osmorhiza purpurea Purple Sweet-Cicely FAC Parthenium hysterophorus Santa Maria Feverfew FAC Nepeta cataria Catnip FACU Ostrya knowltonii Knowlton's Hop-Hornbeam FAC Parthenocissus inserta Thicket-Creeper FACU Nephrolepis exaltata Boston Sword Fern FACU Ottelia alismoides Duck-Lettuce OBL Parthenocissus quinquefolia Virginia-Creeper FAC Pascopyrum smithii Western-Wheat Grass FAC Phacelia amabilis Saline Valley Scorpion-Weed FACU Pistia stratiotes Water-Lettuce OBL Paspalum dilatatum Golden Crown Grass FAC Phacelia heterophylla Variable-Leaf Scorpion-Weed FACU Plagiobothrys acanthocarpus Adobe Popcorn-Flower OBL Paspalum distichum Jointed Crown Grass FACW Phacelia inundata Playa Yellow Scorpion-Weed FACW Plagiobothrys austiniae Austin's Popcorn-Flower OBL Paspalum notatum Bahia Grass FAC Phacelia inyoensis Inyo Yellow Scorpion-Weed FAC Plagiobothrys bracteatus Bracted Popcorn-Flower FACW Paspalum plicatulum Brown-Seed Crown Grass FAC Phacelia lemmonii Lemmon's Scorpion-Weed FACU Plagiobothrys chorisianus Artist's Popcorn-Flower OBL Paspalum pubiflorum Hairy-Seed Crown Grass FACW Phacelia orogenes Mountain Scorpion-Weed FACU Plagiobothrys distantiflorus California Popcorn-Flower OBL Paspalum setaceum Slender Crown Grass UPL Phacelia parishii Parish's Scorpion-Weed FACU Plagiobothrys figuratus Fragrant Popcorn-Flower FACW Paspalum urvillei Vasey's Grass FAC Phacelia procera Tall Scorpion-Weed FAC Plagiobothrys glaber Hairless Popcorn-Flower OBL Paspalum vaginatum Seashore Crown Grass FACW Phacelia ramosissima Branched Scorpion-Weed FACU Plagiobothrys glyptocarpus Sculptured Popcorn-Flower FACW Paspalum virgatum Talquezal FACW Phacelia tetramera Four-Part Yellow Scorpion-Weed Plagiobothrys greenei Greene's Popcorn-Flower FACW Passiflora arizonica Arizona Passion-Flower FAC FAC Plagiobothrys hispidulus Harsh Popcorn-Flower FACW Paulownia tomentosa Princesstree UPL Phalacroseris bolanderi Bolander's Mock Dandelion OBL Plagiobothrys humistratus Dwarf Popcorn-Flower OBL Paxistima myrsinites Oregon Boxleaf FACU Phalaris angusta Timothy Canary Grass FACW Plagiobothrys hystriculus Bearded Popcorn-Flower FACW Pectiantia breweri FAC Phalaris aquatica Harding Grass FACU Plagiobothrys leptocladus Alkali Popcorn-Flower OBL Pectiantia ovalis OBL Phalaris arundinacea Reed Canary Grass FACW Plagiobothrys lithocaryus Mayacamas Popcorn-Flower FACW Pectiantia pentandra FACW Phalaris brachystachys Short-Spike Canary Grass FACW Plagiobothrys mollis Soft Popcorn-Flower FACW Pedicularis attollens Little Elephant's-Head OBL Phalaris californica California Canary Grass FAC Plagiobothrys nitens Shiny-Nutlet Popcorn-Flower OBL Pedicularis contorta White Coil-Beak Lousewort FACU Phalaris canariensis Common Canary Grass FACU Plagiobothrys nothofulvus Rusty Popcorn-Flower FAC Pedicularis crenulata Purple-Flower Lousewort FACW Phalaris caroliniana May Grass FACW Plagiobothrys parishii Parish's Popcorn-Flower OBL Pedicularis fluviatilis Marsh Lousewort FAC Phalaris lemmonii Lemmon's Canary Grass FACW Plagiobothrys reticulatus Netted Popcorn-Flower FACW Pedicularis groenlandica Bull Elephant's-Head OBL Phalaris paradoxa Mediterranean Canary Grass FAC Plagiobothrys salsus Salty Popcorn-Flower FACW Pedicularis parryi Parry's Lousewort FACU Phegopteris connectilis Narrow Beech Fern FACU Plagiobothrys scouleri Meadow Popcorn-Flower FACW Pedicularis procera Giant Lousewort FACU Phippsia algida Ice Grass OBL Plagiobothrys stipitatus Stalked Popcorn-Flower FACW Pedicularis scopulorum Rocky Mountain Lousewort FACW Phleum alpinum Mountain Timothy FAC Plagiobothrys strictus Calistoga Popcorn-Flower OBL Pellaea ternifolia Trans-Pecos Cliffbrake FACU Phleum pratense Common Timothy FACU Plagiobothrys tenellus Pacific Popcorn-Flower FACU Peltandra virginica Green Arrow-Arum OBL Phlox idahonis Clearwater Phlox FACW Plagiobothrys tener Slender Popcorn-Flower OBL Penstemon attenuatus Sulphur Beardtongue FACU Phlox kelseyi Marsh Phlox FACW Plagiobothrys trachycarpus Rough-Fruit Popcorn-Flower FACW Penstemon baccharifolius Baccharis-Leaf Beardtongue FACU Phlox paniculata Fall Phlox FACU Plagiobothrys undulatus Wavy-Stem Popcorn-Flower OBL Penstemon globosus Globe Beardtongue FAC Phlox pilosa Downy Phlox FAC Planodes virginicum Virginia Winged Rockcress FAC Penstemon gracilis Lilac Beardtongue UPL Phragmites australis Common Reed FACW Plantago arenaria Sand Plantain UPL Penstemon heterodoxus Sierran Beardtongue FACU Phragmites karka Tropical Reed OBL Plantago australis Mexican Plantain FACW Penstemon lyallii Lyall's Beardtongue FACU Phryma leptostachya American Lopseed FACU Plantago bigelovii Annual Coastal Plantain OBL Penstemon procerus Pincushion Beardtongue FAC Phyla cuneifolia Wedgeleaf FAC Plantago coronopus Buck-Horn Plantain FAC Penstemon pseudoputus Kaibab Plateau Beardtongue FACU Phyla fruticosa Diamond-Leaf Frogfruit FAC Plantago elongata Prairie Plantain FACW Penstemon rydbergii Meadow Beardtongue FACU Phyla lanceolata Northern Frogfruit OBL Plantago eriopoda Red-Woolly Plantain FACW Penstemon serrulatus Cascade Beardtongue FACU Phyla nodiflora Turkey-Tangle FACW Plantago firma Chilean Plantain FACW Penstemon virgatus Upright Blue Beardtongue FACU Phyllanthus caroliniensis Carolina Leaf-Flower FAC Plantago lanceolata English Plantain FAC Penstemon whippleanus Dark Beardtongue FACU Phyllodoce breweri Red Mountain-Heath FAC Plantago major Great Plantain FAC Pentachaeta fragilis Fragile Pygmy Daisy FAC Phyllodoce empetriformis Pink Mountain-Heath FACU Plantago maritima Goosetongue FACW Perideridia californica California Yampah FACW Phyllodoce glanduliflora Yellow Mountain-Heath FACU Plantago ovata Blond Plantain FACU Perideridia gairdneri Common Yampah FAC Phyllospadix scouleri Scouler's Surf-Grass OBL Plantago pusilla Dwarf Plantain FAC Perideridia howellii Howell's Yampah FACW Phyllospadix torreyi Torrey's Surf-Grass OBL Plantago rhodosperma Red-Seed Plantain FAC Perideridia parishii Parish's Yampah FAC Physalis angulata Cut-Leaf Ground-Cherry UPL Plantago rugelii Black-Seed Plantain FAC Peritoma jonesii Jones' Beeplant FACU Physalis peruviana Peruvian Ground-Cherry UPL Plantago subnuda Tall Coastal Plantain FACW Peritoma lutea Yellow Beeplant FACU Physalis philadelphica Mexican Ground-Cherry UPL Plantago virginica Pale-Seed Plantain FACU Peritoma multicaulis Playa Beeplant FACW Physalis pubescens Husk-Tomato FACU Platanthera X estesii FACW Peritoma serrulata Rocky Mountain Beeplant FACU Physocarpus capitatus Pacific Ninebark FACW Platanthera X folsomii FACW nom. Persicaria amphibia Water Smartweed OBL Physocarpus monogynus Mountain Ninebark UPL invalid. Persicaria arifolia Halberd-Leaf Tearthumb OBL Physocarpus opulifolius Atlantic Ninebark FACU Platanthera X kelleyi FACW nom. Persicaria bicornis Pink Knotweed FACW Physostegia parviflora Western False Dragonhead FACW invalid. Persicaria capitata Pink-Head Smartweed FACU Physostegia virginiana Obedient-Plant FACW Platanthera X lassenii FACW Persicaria glabra Smooth Smartweed OBL Phytolacca americana American Pokeweed FAC Platanthera aquilonis Bog Orchid OBL Persicaria hydropiper Mild Water-Pepper OBL Phytolacca icosandra Tropical Pokeweed FACU Platanthera brevifolia Short-Leaf Fringed Orchid FAC Persicaria hydropiperoides Swamp Smartweed OBL Picea engelmannii Engelmann's Spruce FACU Platanthera huronensis Lake Huron Green Orchid OBL Persicaria lapathifolia Dock-Leaf Smartweed FACW Picea glauca White Spruce FAC Platanthera limosa Thurber's Bog Orchid OBL Persicaria maculosa Spotted Lady's-Thumb FACW Picea pungens Blue Spruce FAC Platanthera obtusata Blunt-Leaf Orchid FACW Persicaria orientalis Kiss-Me-Over-the-Garden-Gate FACW Picea sitchensis Sitka Spruce FAC Platanthera orbiculata Lesser Round-Leaf Orchid FAC Persicaria pensylvanica Pinkweed FACW Pilularia americana American Pillwort OBL Platanthera rotundifolia Round-Leaf Orchid OBL Persicaria punctata Dotted Smartweed OBL Pinguicula macroceras California Butterwort OBL Platanthera sparsiflora Canyon Bog Orchid FACW Persicaria robustior Stout Smartweed OBL Pinus contorta Lodgepole Pine FAC Platanthera stricta Slender Bog Orchid FACW Persicaria sagittata Arrow-Leaf Tearthumb OBL Pinus monticola Western White Pine FACU Platanthera tescamnis Intermountain Bog Orchid OBL Persicaria setacea Bog Smartweed OBL Pinus ponderosa Ponderosa Pine FACU Platanthera yosemitensis Yosemite Bog Orchid FACW Persicaria wallichii Garden Smartweed FAC Piperia dilatata Scentbottle FACW Platanus occidentalis American Sycamore FAC Petasites frigidus Arctic Sweet-Colt's-Foot FACW Piperia unalascensis Alaska Rein Orchid FACU Platanus racemosa California Sycamore FAC Platanus wrightii Arizona Sycamore FACW Polygonum engelmannii Engelmann's Knotweed FACU Potentilla basaltica Soldier Meadows Cinquefoil FACW Plecostachys serpyllifolia Petite-Licorice FACU Polygonum erectum Erect Knotweed FACU Potentilla biennis Biennial Cinquefoil FACW Plectritis ciliosa Long-Spur Seablush FACU Polygonum fowleri Fowler's Knotweed FACW Potentilla breweri Brewer's Cinquefoil FAC Plectritis congesta Short-Spur Seablush FACU Polygonum kelloggii Kellogg's Knotweed FACW Potentilla bruceae Bruce's Cinquefoil FAC Plectritis macrocera White Seablush FACU Polygonum majus Wiry Knotweed FACU Potentilla drummondii Drummond's Cinquefoil FAC Pleuropogon californicus California False Semaphore Grass Polygonum marinense Marin Knotweed OBL Potentilla flabellifolia Fringe-Leaf Cinquefoil FACW OBL Polygonum minimum Zigzag Knotweed FACU Potentilla glaucophylla Mountain-Meadow Cinquefoil FACU Pleuropogon hooverianus North Coast False Semaphore Grass Polygonum parryi Parry's Knotweed FAC Potentilla gracilis Graceful Cinquefoil FAC FACW Polygonum patulum Bellard's Knotweed FACW Potentilla hickmanii Hickman's Cinquefoil FACW Pleuropogon oregonus Oregon False Semaphore Grass Polygonum polygaloides White-Margin Knotweed FACW Potentilla indica Indian-Strawberry UPL OBL Polygonum ramosissimum Yellow-Flower Knotweed FAC Potentilla millefolia Cut-Leaf Cinquefoil FACW Pleuropogon refractus Nodding False Semaphore Grass Polygonum sawatchense Sawatch Knotweed FACU Potentilla multijuga Ballona Cinquefoil OBL OBL Polygonum spergulariiforme Fall Knotweed FACU Potentilla newberryi Newberry's Cinquefoil OBL Pluchea odorata Sweetscent FACW Polygonum striatulum Striped Knotweed FACW Potentilla norvegica Norwegian Cinquefoil FAC Pluchea sericea Arrow-Weed FACW Polypogon australis Chilean Rabbit's-Foot Grass FACW Potentilla pensylvanica Pennsylvania Cinquefoil FACU Plumbago auriculata Cape Leadwort UPL Polypogon elongatus Streambank Rabbit's-Foot Grass Potentilla plattensis Platte River Cinquefoil FACW Plumbago zeylanica Wild Leadwort FAC OBL Potentilla pulcherrima Soft Cinquefoil FAC Poa abbreviata Northern Blue Grass FACU Polypogon fugax Hill Rabbit's-Foot Grass FACU Potentilla rivalis Brook Cinquefoil FACW Poa alpina Alpine Blue Grass FAC Polypogon interruptus Ditch Rabbit's-Foot Grass FACW Potentilla rubricaulis Rocky Mountain Cinquefoil FACU Poa annua Annual Blue Grass FAC Polypogon maritimus Maritime Rabbit's-Foot Grass OBL Potentilla supina Bushy Cinquefoil FACW Poa arctica Arctic Blue Grass FACU Polypogon monspeliensis Annual Rabbit's-Foot Grass FACW Potentilla thurberi Scarlet Cinquefoil FACW Poa arida Prairie Blue Grass FAC Polypogon viridis Beardless Rabbit's-Foot Grass FACW Potentilla uliginosa Cunningham Marsh Cinquefoil OBL Poa arnowiae Arnow's Blue Grass FACU Polypremum procumbens Juniper-Leaf FACU Poterium sanguisorba FACU Poa atropurpurea San Bernardino Blue Grass FACW Polystichum lonchitis Northern Holly Fern FACU Primula alcalina Blue-Dome Primrose OBL Poa bulbosa Bulbous Blue Grass FACU Polystichum munitum Pineland Sword Fern FACU Primula angustifolia Alpine Primrose FACU Poa compressa Flat-Stem Blue Grass FACU Pontederia cordata Pickerelweed OBL Primula capillaris Ruby Mountain Primrose FACW Poa douglasii Seashore Blue Grass FACU Populus X acuminata FAC Primula cusickiana Wallowa Primrose FAC Poa interior Inland Blue Grass FAC Populus X hinckleyana FAC Primula egaliksensis Greenland Primrose OBL Poa leibergii Leiberg's Blue Grass FACU Populus angustifolia Narrow-Leaf Cottonwood FACW Primula incana Silvery Primrose OBL Poa leptocoma Marsh Blue Grass FACW Populus balsamifera Balsam Poplar FAC Primula parryi Brook Primrose FAC Poa macrantha Sand-Dune Blue Grass UPL Populus deltoides Eastern Cottonwood FAC Primula rusbyi Rusby's Primrose FAC Poa napensis Napa Blue Grass OBL Populus tremuloides Quaking Aspen FACU Primula suffrutescens Sierran Primrose FAC Poa nemoralis Forest Blue Grass FAC Porterella carnosula Porterplant OBL Proboscidea louisiana Ram's-Horn FACU Poa palustris Fowl Blue Grass FAC Portulaca grandiflora Rose-Moss UPL Prosartes trachycarpa Rough-Fruit Fairybells FACU Poa pratensis Kentucky Blue Grass FAC Portulaca halimoides Silk-Cotton Purslane FAC Prosopis glandulosa Honey Mesquite FACU Poa reflexa Nodding Blue Grass FAC Portulaca oleracea Little-Hogweed FAC Prosopis pubescens American Screw-Bean FAC Poa secunda Curly Blue Grass FACU Portulaca pilosa Kiss-Me-Quick FACU Prosopis velutina Velvet Mesquite FACU Poa stebbinsii Subalpine Blue Grass FACU Portulaca umbraticola Wing-Pod Purslane FACU Prunella vulgaris Common Selfheal FACU Poa stenantha Narrow-Flower Blue Grass FACU Potamogeton X faxonii OBL Prunus americana American Plum FACU Poa trivialis Rough-Stalk Blue Grass FACW Potamogeton X nericus OBL Prunus avium Sweet Cherry FACU Poa unilateralis San Francisco Blue Grass FACU Potamogeton X spathuliformis OBL Prunus caroliniana Carolina Laurel Cherry FACU Podagrostis humilis Alpine False Bent FACW Potamogeton alpinus Reddish Pondweed OBL Prunus emarginata Bitter Cherry FACU Pogogyne abramsii San Diego Mesa-Mint OBL Potamogeton amplifolius Large-Leaf Pondweed OBL Prunus pensylvanica Fire Cherry FACU Pogogyne clareana Santa Lucia Mesa-Mint FACW Potamogeton berchtoldii Little Aguja Pondweed OBL Prunus serotina Black Cherry FACU Pogogyne douglasii Douglas' Mesa-Mint OBL Potamogeton clystocarpus Little Aguja Pondweed OBL Prunus virginiana Choke Cherry FAC Pogogyne floribunda Profuse-Flower Mesa-Mint OBL Potamogeton crispus Curly Pondweed OBL Psathyrostachys juncea Russian-Wild Rye UPL Pogogyne nudiuscula Otay Mesa-Mint OBL Potamogeton diversifolius Waterthread OBL Psathyrotes annua Mealy Turtleback FACU Pogogyne serpylloides Thyme-Leaf Mesa-Mint FACW Potamogeton epihydrus Ribbon-Leaf Pondweed OBL Pseudognaphalium canescens Wright's Rabbit-Tobacco FACU Pogogyne ziziphoroides Sacramento Mesa-Mint OBL Potamogeton foliosus Leafy Pondweed OBL Pseudognaphalium luteoalbum Jersey Rabbit-Tobacco FAC Polanisia dodecandra Red-Whisker Clammyweed FACU Potamogeton friesii Flat-Stalk Pondweed OBL Pseudognaphalium stramineum Polemonium foliosissimum Towering Jacob's-Ladder FAC Potamogeton gramineus Grassy Pondweed OBL Cotton-Batting-Plant FAC Polemonium micranthum Annual Jacob's-Ladder FACU Potamogeton illinoensis Illinois Pondweed OBL Pseudotsuga menziesii Douglas-Fir FACU Polemonium occidentale Western Jacob's-Ladder FACW Potamogeton natans Broad-Leaf Pondweed OBL Psidium cattleianum Purple Strawberry Guava FACU Polemonium pauciflorum Few-Flower Jacob's-Ladder FACW Potamogeton nodosus Long-Leaf Pondweed OBL Psidium guajava Guava UPL Polyctenium fremontii Desert Combleaf FAC Potamogeton obtusifolius Blunt-Leaf Pondweed OBL Psilactis asteroides New Mexico Bare-Ray-Aster FACW Polygala ambigua Alternate Milkwort FACU Potamogeton praelongus White-Stem Pondweed OBL Psilocarphus brevissimus Dwarf Woollyheads FACW Polygala sanguinea Purple Milkwort FACU Potamogeton pusillus Small Pondweed OBL Psilocarphus chilensis Chilean Woollyheads FACW Polygala verticillata Whorled Milkwort FACU Potamogeton richardsonii Red-Head Pondweed OBL Psilocarphus elatior Tall Woollyheads FACW Polygonatum biflorum King Solomon's-Seal FACU Potamogeton robbinsii Fern Pondweed OBL Psilocarphus oregonus Oregon Woollyheads OBL Polygonum achoreum Leathery Knotweed FACU Potamogeton strictifolius Straight-Leaf Pondweed OBL Psilocarphus tenellus Slender Woollyheads OBL Polygonum argyrocoleon Silver-Sheath Knotweed FAC Potamogeton zosteriformis Flat-Stem Pondweed OBL Psilotum nudum Whisk Fern FACW Polygonum austiniae Mrs. Austin's Knotweed FACU Potentilla X nana FAC Psorothamnus arborescens Mojave Smokebush FACU Polygonum aviculare Yard Knotweed FAC Potentilla anserina Silverweed OBL Ptelea trifoliata Common Hoptree UPL Polygonum douglasii Douglas' Knotweed FACU Potentilla argentea Silver-Leaf Cinquefoil FACU Pteridium aquilinum Northern Bracken Fern FACU Pteris vittata Ladder Brake FAC Ranunculus oreogenes Oregon Buttercup FACU Rorippa curvisiliqua Curve-Pod Yellowcress OBL Ptilagrostis kingii Sierran False Needle Grass FACU Ranunculus orthorhynchus Straight-Beak Buttercup FACW Rorippa dubia FAC Puccinellia distans Spreading Alkali Grass FACW Ranunculus parviflorus Small-Flower Buttercup FAC Rorippa microtitis Chihuahuan Yellowcress FACW Puccinellia fasciculata Saltmarsh Alkali Grass OBL Ranunculus pensylvanicus Pennsylvania Buttercup FACW Rorippa palustris Bog Yellowcress OBL Puccinellia howellii Howell's Alkali Grass OBL Ranunculus populago Mountain Buttercup OBL Rorippa ramosa Durango Yellowcress FACW Puccinellia lemmonii Lemmon's Alkali Grass FACW Ranunculus pusillus Low Spearwort OBL Rorippa sinuata Spreading Yellowcress FACW Puccinellia lucida Shining Alkali Grass OBL Ranunculus pygmaeus Dwarf Buttercup FACW Rorippa sphaerocarpa Round-Fruit Yellowcress FACW Puccinellia nutkaensis Nootka Alkali Grass OBL Ranunculus repens Creeping Buttercup FAC Rorippa subumbellata Lake Tahoe Yellowcress OBL Puccinellia nuttalliana Nuttall's Alkali Grass FACW Ranunculus sardous Hairy Buttercup FACW Rorippa sylvestris Creeping Yellowcress OBL Puccinellia parishii Parish's Alkali Grass OBL Ranunculus sceleratus Cursed Buttercup OBL Rorippa tenerrima Modoc Yellowcress FAC Puccinellia pumila Dwarf Alkali Grass FACW Ranunculus subrigidus Short-Beak Water-Crowfoot OBL Rorippa teres Southern Marsh Yellowcress FACW Puccinellia simplex California Alkali Grass FACW Ranunculus sulphureus Sulphur Buttercup FACW Rosa acicularis Prickly Rose FACU Pueraria montana Kudzu UPL Ranunculus trichophyllus Thread-Leaf Water-Crowfoot OBL Rosa arkansana Prairie Rose FACU Pulicaria paludosa Spanish False Fleabane FAC Ranunculus trilobus Three-Lobe Buttercup FACU Rosa californica California Rose FAC Pyrola asarifolia Pink Wintergreen FAC Ranunculus uncinatus Woodland Buttercup FAC Rosa gymnocarpa Bald-Hip Rose FACU Pyrola chlorantha Green-Flower Wintergreen FAC Reynoutria X bohemica FACU Rosa micrantha Small-Flower Sweetbrier FACU Pyrola elliptica Shinleaf UPL Reynoutria japonica Japanese-Knotweed FACU Rosa multiflora Rambler Rose FACU Pyrola minor Snowline Wintergreen FACU Reynoutria sachalinensis Giant-Knotweed FACU Rosa nutkana Nootka Rose FACU Pyrrocoma hirta Tacky Goldenweed FAC Rhamnus alaternus Evergreen Buckthorn FACU Rosa pisocarpa Clustered Rose FAC Pyrrocoma lanceolata Lance-Leaf Goldenweed FAC Rhamnus alnifolia Alder-Leaf Buckthorn OBL Rosa rubiginosa Sweetbrier UPL Pyrrocoma racemosa Clustered Goldenweed FAC Rhamnus cathartica European Buckthorn FAC Rosa woodsii Woods' Rose FACU Pyrrocoma uniflora Plantain Goldenweed FACW Rhinanthus minor Little Yellow-Rattle FACU Rotala indica Indian Toothcup OBL Quercus garryana Oregon White Oak UPL Rhinotropis cornuta Sierran Desert-Milkwort FACW Rotala ramosior Lowland Toothcup OBL Quercus hemisphaerica Darlington's Oak FACU Rhodiola integrifolia Entire-Leaf Rosewort FACU Rottboellia cochinchinensis Itch Grass FAC Quercus lobata Valley Oak FACU Rhodiola rhodantha Queen's-Crown FACW Rubus allegheniensis Allegheny Blackberry FACU Quercus macrocarpa Burr Oak FAC Rhododendron albiflorum Cascade Azalea FACU Rubus arcticus Northern Blackberry FAC Quercus muehlenbergii Chinkapin Oak FAC Rhododendron columbianum Western Labrador-Tea FACW Rubus arizonensis Arizona Dewberry FACU Quercus rubra Northern Red Oak FACU Rhododendron macrophyllum California Rhododendron FACU Rubus armeniacus Himalayan Blackberry FAC Quercus virginiana Live Oak FACU Rhododendron occidentale Western Azalea FAC Rubus bartonianus Barton's Raspberry FACW Quincula lobata Chinese-Lantern FACU Rhododendron prinophyllum Early Azalea FAC Rubus flagellaris Whiplash Dewberry FACU Raillardella pringlei Showy Raillardella OBL Rhus aromatica Fragrant Sumac FACU Rubus idaeus Common Red Raspberry FACU Raillardella scaposa Green-Leaf Raillardella FACU Rhus copallinum Winged Sumac FACU Rubus laciniatus Cut-Leaf Blackberry FACU Ranunculus abortivus Kidney-Leaf Buttercup FACW Rhynchospora alba White Beak Sedge OBL Rubus lasiococcus Hairy-Fruit Smooth Dewberry FACU Ranunculus acriformis Sharp-Leaf Buttercup FACW Rhynchospora brachychaeta West Indian Beak Sedge FACW Rubus leucodermis White-Stem Raspberry FACU Ranunculus acris Tall Buttercup FACW Rhynchospora californica California Beak Sedge OBL Rubus parviflorus Western Thimble-Berry FAC Ranunculus adoneus Alpine Buttercup FACW Rhynchospora capitellata Brownish Beak Sedge OBL Rubus pedatus Strawberry-Leaf Raspberry FACU Ranunculus aestivalis Fall Buttercup FACW Rhynchospora globularis Globe Beak Sedge OBL Rubus pensilvanicus Pennsylvania Blackberry FAC Ranunculus alismifolius Water-Plantain Buttercup FACW Rhynchospora recognita Coarse Globe Beak Sedge FACW Rubus phoenicolasius Wine Raspberry FACU Ranunculus aquatilis White Water-Crowfoot OBL Ribes acerifolium Maple-Leaf Currant FACU Rubus pubescens Dwarf Red Raspberry FAC Ranunculus arcticus Northern Buttercup FAC Ribes americanum Wild Black Currant FACW Rubus spectabilis Salmon Raspberry FAC Ranunculus arvensis Hungerweed FACU Ribes aureum Golden Currant FAC Rubus ursinus California Dewberry FAC Ranunculus bonariensis Carter's Buttercup OBL Ribes bracteosum California Black Currant FAC Rudbeckia alpicola Showy Coneflower FACW Ranunculus bulbosus St. Anthony's-Turnip FAC Ribes divaricatum Coastal Black Gooseberry FAC Rudbeckia californica California Coneflower FACW Ranunculus californicus California Buttercup FACU Ribes hudsonianum Northern Black Currant FACW Rudbeckia glaucescens Waxy Coneflower FACW Ranunculus canus Sacramento Valley Buttercup FAC Ribes inerme White-Stem Gooseberry FAC Rudbeckia hirta Black-Eyed-Susan FACU Ranunculus cardiophyllus Heart-Leaf Buttercup FACW Ribes lacustre Bristly Black Gooseberry FACW Rudbeckia klamathensis Klamath Coneflower FACW Ranunculus eschscholtzii Spruce-Fir Buttercup FAC Ribes laxiflorum Trailing Black Currant FACU Rudbeckia laciniata Green-Head Coneflower FAC Ranunculus flabellaris Greater Yellow Water Buttercup Ribes lobbii Oregon Gooseberry FACU Rudbeckia montana Montane Coneflower FACW OBL Ribes nevadense Sierran Currant FAC Rudbeckia occidentalis Western Coneflower FAC Ranunculus flammula Greater Creeping Spearwort OBL Ribes oxyacanthoides Canadian Gooseberry FACU Rudbeckia triloba Brown-Eyed-Susan FACU Ranunculus glaberrimus Sagebrush Buttercup FAC Ribes sanguineum Blood Currant UPL Rumex acetosa Garden Sorrel FAC Ranunculus gmelinii Lesser Yellow Water Buttercup FACW Ribes thacherianum Santa Cruz Gooseberry FACU Rumex acetosella Common Sheep Sorrel FACU Ranunculus gormanii Gorman's Buttercup FACW Ribes triste Swamp Red Currant OBL Rumex altissimus Pale Dock FACW Ranunculus grayi Arctic Buttercup FAC Ribes viscosissimum Sticky Currant FAC Rumex britannica Greater Water Dock OBL Ranunculus hydrocharoides Frog-Bit Buttercup OBL Ribes wolfii Winaha Currant FAC Rumex californicus California Willow Dock FACW Ranunculus hyperboreus Far-Northern Buttercup OBL Ricinus communis Castor-Bean FACU Rumex conglomeratus Sharp Dock FACW Ranunculus inamoenus Graceful Buttercup FACW Rivina humilis Rougeplant FAC Rumex crassus Fleshy Willow Dock FACW Ranunculus jovis Hillside Buttercup FAC Robinia pseudoacacia Black Locust FACU Rumex crispus Curly Dock FAC Ranunculus lobbii Lobb's Water-Crowfoot OBL Romanzoffia californica California Mistmaiden FAC Rumex densiflorus Dense-Flower Dock FACW Ranunculus longirostris Long-Beak Water-Crowfoot OBL Romanzoffia sitchensis Sitka Mistmaiden FACW Rumex dentatus Toothed Dock FACW Ranunculus macauleyi Rocky Mountain Buttercup FACW Rorippa austriaca Austrian Yellowcress FACW Rumex fueginus Tierra del Fuego Dock FACW Ranunculus macounii Macoun's Buttercup OBL Rorippa calycina Persistent-Sepal Yellowcress FACW Rumex hastatulus Heart-Wing Sorrel FAC Ranunculus muricatus Spiny-Fruit Buttercup FACW Rorippa columbiae Columbian Yellowcress OBL Rumex hesperius Western Willow dock FACW Ranunculus occidentalis Western Buttercup FAC Rorippa curvipes Blunt-Leaf Yellowcress FACW Rumex kerneri Kerner's Dock FACW Rumex lacustris Lake Willow Dock OBL Salix geyeriana Geyer's Willow OBL Saxifraga chrysantha Golden Saxifrage FACU Rumex lapponicus Lapland Sorrel FAC Salix glauca Gray-Leaf Willow FACW Saxifraga hirculus Yellow Marsh Saxifrage OBL Rumex mexicanus Mexican Dock FAC Salix gooddingii Goodding's Black Willow FACW Saxifraga mertensiana Woodland Saxifrage FACW Rumex obtusifolius Bitter Dock FAC Salix hookeriana Coastal Willow FACW Saxifraga oppositifolia Purple Mountain Saxifrage FACU Rumex occidentalis Western Dock FACW Salix interior Sandbar Willow FACW Saxifraga rivularis Alpine-Brook Saxifrage FACW Rumex palustris Marsh Dock FACW Salix irrorata Dewy-Stem Willow FACW Saxifraga vespertina Yellow-Dot Saxifrage FACU Rumex paucifolius Alpine Sheep Sorrel FAC Salix jepsonii Jepson's Willow OBL Sceptridium multifidum Leathery Grape Fern FAC Rumex persicarioides Coastal Dock FACW Salix laevigata Polished Willow FACW Schedonorus arundinaceus Tall False Rye Grass FACU Rumex pulcher Fiddle Dock FAC Salix lasiandra Pacific Willow FACW Schedonorus pratensis Meadow False Rye Grass FACU Rumex salicifolius Willow Dock FACW Salix lasiolepis Arroyo Willow FACW Scheuchzeria palustris Rannoch-Rush OBL Rumex spiralis Winged Dock FAC Salix lemmonii Lemmon's Willow FACW Schinus molle Peruvian Peppertree FACU Rumex stenophyllus Narrow-Leaf Dock FACW Salix ligulifolia Strap-Leaf Willow FACW Schinus terebinthifolia Brazilian Peppertree FAC Rumex transitorius Pacific Willow Dock FACW Salix lutea Yellow Willow OBL Schizachne purpurascens False Melic Grass FACU Rumex triangulivalvis Triangular-Valved Dock FACW Salix maccalliana Mccalla's Willow FACW Schizachyrium littorale Dune False Bluestem FACU Rumex venosus Veiny Dock UPL Salix melanopsis Dusky Willow OBL Schizachyrium scoparium Little False Bluestem FACU Rumex verticillatus Swamp Dock FACW Salix monochroma One-Color Willow FACW Schoenoplectus acutus Hard-Stem Club-Rush OBL Rumex violascens Violet Dock FACW Salix monticola Park Willow OBL Schoenoplectus americanus Chairmaker's Club-Rush OBL Ruppia cirrhosa Spiral Ditch-Grass OBL Salix myrtillifolia Blueberry Willow FACW Schoenoplectus californicus California Club-Rush OBL Ruppia maritima Beaked Ditch-Grass OBL Salix nigra Black Willow OBL Schoenoplectus fluviatilis River Club-Rush OBL Sabatia angularis Rose-Pink FAC Salix nivalis Snow Willow FACW Schoenoplectus glaucus Tuberous Club-Rush OBL Saccharum ravennae Ranenna Grass FAC Salix orestera Gray-Leaf Sierran Willow FACW Schoenoplectus heterochaetus Pale Great Club-Rush OBL Sagina apetala Annual Pearlwort FAC Salix pedicellaris Bog Willow OBL Schoenoplectus maritimus Saltmarsh Club-Rush OBL Sagina decumbens Trailing Pearlwort FACU Salix planifolia Tea-Leaf Willow OBL Schoenoplectus mucronatus Bog Club-Rush OBL Sagina maxima Sticky-Stem Pearlwort FAC Salix prolixa Mackenzie's Willow OBL Schoenoplectus pungens Three-Square OBL Sagina procumbens Bird-Eye Pearlwort FAC Salix pseudomonticola False Mountain Willow FACW Schoenoplectus robustus Seaside Club-Rush OBL Sagina saginoides Alpine Pearlwort FACW Salix purpurea Purple Willow FACW Schoenoplectus saximontanus Rocky Mountain Club-Rush OBL Sagittaria brevirostra Short-Beak Arrowhead OBL Salix reticulata Net-Vein Willow FAC Schoenoplectus subterminalis Swaying Club-Rush OBL Sagittaria calycina Hooded Arrowhead OBL Salix rotundifolia Round-Leaf Willow FACW Schoenoplectus tabernaemontani Sagittaria cuneata Arum-Leaf Arrowhead OBL Salix scouleriana Scouler's Willow FAC Soft-Stem Club-Rush OBL Sagittaria latifolia Duck-Potato OBL Salix serissima Autumn Willow OBL Schoenus nigricans Black Bog-Rush OBL Sagittaria longiloba Long-Barb Arrowhead OBL Salix sitchensis Sitka Willow FACW Scilla luciliae Boissier's Glory-of-the-Snow FACU Sagittaria rigida Sessile-Fruit Arrowhead OBL Salix thurberi FAC Scirpus atrocinctus Black-Girdle Bulrush OBL Sagittaria sanfordii Valley Arrowhead OBL Salix tweedyi Tweedy's Willow FACW Scirpus atrovirens Dark-Green Bulrush OBL Salicornia bigelovii Dwarf Saltwort OBL Salix vestita Rock Willow FAC Scirpus congdonii Congdon's Bulrush FACW Salicornia depressa Woody Saltwort OBL Salix viminalis Basket Willow FACW Scirpus cyperinus Cottongrass Bulrush OBL Salicornia rubra Red Saltwort OBL Salix wolfii Idaho Willow OBL Scirpus diffusus Umbrella Bulrush FACW Salix X fragilis FAC Salsola soda Opposite-Leaf Russian-Thistle FACW Scirpus microcarpus Red-Tinge Bulrush OBL Salix X pendulina FACW Salsola tragus Prickly Russian-Thistle FACU Scirpus nevadensis Nevada Bulrush OBL Salix X sepulcralis FACW Salvia lycioides Canyon Sage FACU Scirpus pallidus Pale Bulrush OBL Salix alba White Willow FACW Salvinia minima Water-Spangles OBL Scirpus pendulus Rufous Bulrush OBL Salix amygdaloides Peach-Leaf Willow FACW Salvinia molesta Kariba-Weed OBL Scleranthus annuus Annual Knawel FACU Salix arctica Arctic Willow FAC Salvinia oblongifolia Oblong-Leaf Water-Moss OBL Sclerolinon digynum Northwestern Yellow-Flax FACW Salix arizonica Arizona Willow OBL Sambucus nigra Black Elder FACU Scolochloa festucacea Common River Grass OBL Salix babylonica Chinese Willow FAC Sambucus racemosa Red Elder FACU Scorzoneroides autumnalis August-Flower FAC Salix barclayi Barclay's Willow FACW Samolus ebracteatus Limewater Brookweed FACW Scrophularia atrata Black-Flower Figwort FACU Salix barrattiana Barratt's Willow FACW Samolus parviflorus OBL Scrophularia californica California Figwort FAC Salix bebbiana Gray Willow FACW Samolus vagans Chiricahua Mountain Brookweed Scrophularia lanceolata Lance-Leaf Figwort FAC Salix bonplandiana Red Willow FACW OBL Scutellaria bolanderi Sierran Skullcap FACW Salix boothii Booth's Willow FACW Sanguisorba canadensis Canadian Burnet FACW Scutellaria galericulata Hooded Skullcap OBL Salix brachycarpa Short-Fruit Willow FACW Sanguisorba officinalis Great Burnet FACW Scutellaria lateriflora Mad Dog Skullcap FACW Salix breweri Brewer's Willow FAC Sanicula marilandica Maryland Black-Snakeroot FAC Scutellaria siphocampyloides Gray-Leaf Skullcap FACU Salix candida Sage Willow OBL Sanicula maritima Adobe Black-Snakeroot FACW Sedella leiocarpa Lake County Mock Stonecrop FAC Salix caprea Goat Willow FACW Sapindus saponaria Wing-Leaf Soapberry FACU Sedella pumila Sierran Mock Stonecrop FAC Salix cascadensis Cascade Willow FACU Saponaria officinalis Bouncing-Bett FACU Selaginella kraussiana Krauss' Spike-Moss FACW Salix columbiana FACW Sarcobatus vermiculatus Greasewood FACU Selaginella selaginoides Northern Spike-Moss FACW Salix commutata Under-Green Willow OBL Sarcocornia pacifica Pacific Swampfire OBL Selenia dissecta Texas Selenia FACW Salix delnortensis Del Norte Willow FAC Sarcocornia utahensis Utah Swampfire OBL Selenia jonesii Jones' Selenia FACW Salix discolor Pussy Willow FACW Sarracenia purpurea Purple Pitcherplant OBL Senecio amplectens Showy Alpine Ragwort FACW Salix drummondiana Drummond's Willow FACW Sarracenia rubra Sweet Pitcherplant OBL Senecio clarkianus Clark's Ragwort FACW Salix eastwoodiae Sierran Willow FACW Saussurea americana American Saw-Wort FACW Senecio cliffordii Clifford's Ragwort UPL Salix exigua Narrow-Leaf Willow FACW Saxifraga adscendens Wedge-Leaf Saxifrage FACW Senecio crassulus Thick-Leaf Ragwort FACU Salix exilifolia Yew-Leaf Willow FACW Saxifraga austromontana Matted Saxifrage FACU Senecio eremophilus Desert Ragwort FACU Salix famelica FACW Saxifraga caespitosa Tufted Alpine Saxifrage FAC Senecio hieraciifolius American Burnweed FACU Salix farriae Farr's Willow OBL Saxifraga cernua Nodding Saxifrage FACW Senecio hydrophiloides Stout Meadow Ragwort FACW Senecio hydrophilus Alkali-Marsh Ragwort OBL Sisyrinchium idahoense Idaho Blue-Eyed-Grass FACW Spiranthes diluvialis Diluvim Ladies'-Tresses FACW Senecio integerrimus Lamb-Tongue Ragwort FACU Sisyrinchium longipes Timberland Blue-Eyed-Grass FACW Spiranthes infernalis Ash Meadows Ladies'-Tresses FACW Senecio lugens Small Black-Tip Ragwort FAC Sisyrinchium minus Dwarf Blue-Eyed-Grass FACU Spiranthes magnicamporum Great Plains Ladies'-Tresses FAC Senecio minimus Coastal Burnweed FACU Sisyrinchium montanum Strict Blue-Eyed-Grass FACW Spiranthes porrifolia Western Ladies'-Tresses FACW Senecio scorzonella Sierran Ragwort FAC Sisyrinchium sarmentosum Mountain Blue-Eyed-Grass OBL Spiranthes romanzoffiana Hooded Ladies'-Tresses FACW Senecio serra Tall Ragwort FACU Sisyrinchium septentrionale Northern Blue-Eyed-Grass FACW Spirodela polyrhiza Common Duckmeat OBL Senecio sphaerocephalus Mountain-Marsh Ragwort FACW Sium suave Hemlock Water-Parsnip OBL Sporobolus airoides Alkali-Sacaton FAC Senecio sylvaticus Woodland Ragwort UPL Smilax jamesii English Peak Greenbrier FACW Sporobolus cryptandrus Sand Dropseed FACU Senecio triangularis Arrow-Leaf Ragwort FACW Solanum americanum American Black Nightshade FACU Sporobolus diandrus Tussock Dropseed UPL Senecio vulgaris Old-Man-in-the-Spring FACU Solanum carolinense Carolina Horse-Nettle FACU Sporobolus flexuosus Mesa Dropseed FACU Senegalia greggii Long-Flower Catclaw FACU Solanum douglasii Green-Spot Nightshade FAC Sporobolus giganteus Giant Dropseed FACU Senna hirsuta Woolly Wild Sensitive-Plant FACU Solanum dulcamara Climbing Nightshade FAC Sporobolus indicus Smut Grass FACU Senna obtusifolia Coffeeweed UPL Solanum nigrum European Black Nightshade FACU Sporobolus neglectus Small Dropseed UPL Senna pendula Valamuerto FAC Solanum ptychanthum Eastern Black Nightshade FACU Sporobolus pyramidatus Target Dropseed FACU Sesbania emerus Danglepod FAC Solidago altissima Tall Goldenrod FACU Sporobolus texanus Texas Dropseed FACW Sesbania herbacea Peatree FACW Solidago confinis Southern Goldenrod OBL Sporobolus wrightii Wright's Dropseed FAC Sesbania punicea Purple River-Hemp FACW Solidago elongata Cascade Canada Goldenrod FACU Stachys ajugoides Bugle Hedge-Nettle OBL Sesuvium maritimum Slender Sea-Purslane FACW Solidago gigantea Late Goldenrod FACW Stachys albens White-Stem Hedge-Nettle OBL Sesuvium portulacastrum Shoreline Sea-Purslane FACW Solidago lepida Western Canada Goldenrod FAC Stachys chamissonis Coastal Hedge-Nettle OBL Sesuvium verrucosum Verrucose Sea-Purslane FACW Solidago multiradiata Rocky Mountain Goldenrod FACU Stachys coccinea Scarlet Hedge-Nettle FAC Setaria adhaerens Adherent Bristle Grass FACU Solidago rigida Hard-Leaf Flat-Top-Goldenrod FACU Stachys crenata Mouse's-Ear FAC Setaria faberi Japanese Bristle Grass UPL Solidago simplex Mt. Albert Goldenrod FACU Stachys floridana Florida Hedge-Nettle FAC Setaria italica Italian Bristle Grass FACU Solidago spathulata Coast Goldenrod FACU Stachys mexicana Mexican Hedge-Nettle FACW Setaria magna Giant Bristle Grass FACW Solidago spectabilis Nevada Goldenrod FACW Stachys pilosa Hairy Hedge-Nettle FACW Setaria parviflora Marsh Bristle Grass FAC Soliva sessilis Lawn Burrweed FACU Stachys pycnantha Short-Spike Hedge-Nettle FACW Setaria pumila Yellow Bristle Grass FAC Sonchus arvensis Field Sow-Thistle FACU Stachys rigida Rough Hedge-Nettle FACW Setaria sphacelata African Bristle Grass OBL Sonchus asper Spiny-Leaf Sow-Thistle FAC Stachys stricta Sonoma Hedge-Nettle OBL Setaria verticillata Rough Bristle Grass FACU Sonchus oleraceus Common Sow-Thistle UPL Steinchisma hians Gaping Grass FACW Setaria verticilliformis Foreward-Barb Bristle Grass FAC Sorbus scopulina Cascade Mountain-Ash FACU Stellaria alsine Bog Chickweed OBL Seymeria cassioides Yaupon Black-Senna FAC Sorbus sitchensis Sitka Mountain-Ash FAC Stellaria borealis Boreal Starwort FACW Shepherdia argentea Silver Buffalo-Berry FACU Sorghastrum nutans Yellow Indian Grass FACU Stellaria calycantha Northern Bog Starwort FACW Shepherdia canadensis Russet Buffalo-Berry UPL Sorghum bicolor Broom-Corn FACU Stellaria crassifolia Fleshy Starwort FACW Sibbaldia procumbens Creeping-Glow-Wort FACU Sorghum halepense Johnson Grass FACU Stellaria crispa Ruffled Starwort FAC Sida acuta Common-Wireweed UPL Sparganium angustifolium Narrow-Leaf Burr-Reed OBL Stellaria cuspidata Mexican Starwort FAC Sida rhombifolia Cuban-Jute FACU Sparganium emersum European Burr-Reed OBL Stellaria graminea Grass-Leaf Starwort FAC Sida spinosa Prickly Fanpetals UPL Sparganium eurycarpum Broad-Fruit Burr-Reed OBL Stellaria humifusa Saltmarsh Starwort OBL Sidalcea calycosa Annual Checkerbloom OBL Sparganium natans Arctic Burr-Reed OBL Stellaria littoralis Beach Starwort OBL Sidalcea campestris Meadow Checkerbloom FACU Spartina alterniflora Saltwater Cord Grass OBL Stellaria longifolia Long-Leaf Starwort FACW Sidalcea candida White Checkerbloom FACW Spartina densiflora Dense-Flower Cord Grass OBL Stellaria longipes Long-Stalk Starwort FACW Sidalcea covillei Owens Valley Checkerbloom FACU Spartina foliosa California Cord Grass OBL Stellaria media Common Chickweed FACU Sidalcea cusickii Cusick's Checkerbloom FACW Spartina gracilis Alkali Cord Grass FACW Stellaria obtusa Rocky Mountain Starwort FACW Sidalcea hirsuta Hairy Checkerbloom OBL Spartina patens Salt-Meadow Cord Grass OBL Stellaria umbellata Umbrella Starwort FACW Sidalcea malviflora Dwarf Checkerbloom FACW Spartina pectinata Freshwater Cord Grass OBL Stemodia durantifolia White-Woolly Twintip OBL Sidalcea neomexicana Rocky Mountain Checkerbloom FACW Spergularia atrosperma Black-Seed Sandspurry FACW Stenotaphrum secundatum St. Augustine Grass FAC Sidalcea oregana Oregon Checkerbloom FACW Spergularia bocconi Boccone's Sandspurry FACW Streptopus amplexifolius Clasping Twistedstalk FAC Sidalcea pedata Mountain Checkerbloom OBL Spergularia canadensis Canadian Sandspurry FACW Streptopus lanceolatus Lance-Leaf Twistedstalk FAC Sidalcea ranunculacea Marsh Checkerbloom OBL Spergularia diandra Alkali Sandspurry FACW Strophostyles helvola Trailing Fuzzy-Bean FACU Sidalcea reptans Sierran Checkerbloom OBL Spergularia echinosperma Bristle-Seed Sandspurry OBL Stuckenia filiformis Slender-Leaf False Pondweed OBL Sidalcea stipularis Scadden Flat Checkerbloom OBL Spergularia macrotheca Sticky Sandspurry FAC Stuckenia pectinata Sago False Pondweed OBL Sideroxylon lanuginosum Gum Bully FACU Spergularia marina Saltmarsh Sandspurry OBL Stuckenia striata Striped False Pondweed OBL Silene acaulis Cushion-Pink UPL Spergularia media Satin-Flower FACW Stuckenia vaginata Sheathed False Pondweed OBL Silene menziesii White Catchfly FAC Spergularia platensis La Plata Sandspurry OBL Styrax platanifolius Sycamore-Leaf Snowbell FAC Silene uralensis Apetalous Catchfly FACW Spergularia rubra Ruby Sandspurry FAC Suaeda calceoliformis Paiuteweed FACW Silphium perfoliatum Cup-Plant FACW Spermolepis divaricata Rough-Fruit Scaleseed FACW Suaeda californica Broom Seepweed FACW Sinapis alba White-Mustard FAC Spermolepis echinata Bristly-Fruit Scaleseed FACU Suaeda esteroa Seablite FACW Sisymbrium altissimum Tall Hedge-Mustard FACU Sphaerophysa salsula Red Bladder-Vetch FACU Suaeda mexicana Mexican Seepweed FACW Sisyrinchium bellum California Blue-Eyed-Grass FACW Sphenopholis intermedia Slender Wedgescale FAC Suaeda nigra Shrubby Seepweed OBL Sisyrinchium californicum Golden Blue-Eyed-Grass FACW Sphenopholis obtusata Prairie Wedgescale FAC Suaeda occidentalis Western Seepweed FACW Sisyrinchium cernuum Nodding Blue-Eyed-Grass FAC Sphenosciadium capitellatum Swamp Whiteheads FACW Suaeda taxifolia Needle-Leaf Seepweed FACW Sisyrinchium demissum Stiff Blue-Eyed-Grass OBL Spinulum annotinum Interrupted Club-Moss FAC Subularia aquatica American Water-Awlwort OBL Sisyrinchium elmeri Elmer's Blue-Eyed-Grass OBL Spiraea X hitchcockii FAC Suckleya suckleyana Poison Suckleya FACW Sisyrinchium funereum Funeral Mountain Blue-Eyed-Grass Spiraea betulifolia Shiny-Leaf Meadowsweet FACU Suksdorfia violacea Violet Mock Brookfoam FAC FACW Spiraea douglasii Douglas' Meadowsweet FACW Sullivantia hapemanii Hapeman's Coolwort FACW Sisyrinchium halophilum Nevada Blue-Eyed-Grass FACW Spiranthes delitescens Madrean Ladies'-Tresses OBL Swertia perennis Felwort FACW Symphoricarpos albus Common Snowberry FACU Thelypodium integrifolium Entire-Leaf Thelypody FACW Trifolium howellii Canyon Clover FACW Symphoricarpos mollis Creeping Snowberry FACU Thelypodium sagittatum Arrowhead Thelypody FACW Trifolium hybridum Alsike Clover FAC Symphoricarpos occidentalis Western Snowberry FAC Thelypodium stenopetalum Slender-Petal Thelypody FAC Trifolium hydrophilum Saline Clover FAC Symphoricarpos orbiculatus Coral-Berry UPL Thelypteris ovata Ovate Marsh Fern FACW Trifolium kingii King's Clover FAC Symphyotrichum ascendens Western American-Aster FAC Thelypteris puberula Showy Maiden Fern FACW Trifolium longipes Long-Stalk Clover FACW Symphyotrichum bahamense Island American-Aster OBL Thermopsis divaricarpa Spread-Fruit Golden-Banner FAC Trifolium macrocephalum Large-Head Clover FACU Symphyotrichum boreale Boreal American-Aster OBL Thermopsis montana Montane Golden-Banner FAC Trifolium microcephalum Small-Head Clover FAC Symphyotrichum bracteolatum Bracted American-Aster FAC Thermopsis rhombifolia Prairie Golden-Banner FACU Trifolium monanthum Mountain Carpet Clover FAC Symphyotrichum chilense Pacific American-Aster FAC Thevetia peruviana Luckynut UPL Trifolium mucronatum Cusp Clover FACW Symphyotrichum ciliatum Alkali American-Aster FACW Thlaspi arvense Field Pennycress UPL Trifolium neurophyllum White Mountain Clover FACW Symphyotrichum defoliatum San Bernardino American-Aster Thuja plicata Western Arborvitae FAC Trifolium obtusiflorum Clammy Clover FAC OBL Tiarella trifoliata Three-Leaf Foamflower FAC Trifolium parryi Parry's Clover FAC Symphyotrichum divaricatum Lawn American-Aster OBL Tilia americana American Basswood FACU Trifolium pinetorum Pinewoods Clover FACW Symphyotrichum ericoides White Heath American-Aster FAC Tiquilia nuttallii Rosette Crinklemat UPL Trifolium polyodon Pacific Grove Clover FACW Symphyotrichum expansum Desert American-Aster OBL Tithonia diversifolia Tree-Marigold FACU Trifolium pratense Red Clover FACU Symphyotrichum falcatum Rough White Prairie American-Aster Tithonia thurberi Arizona Sunflower-Weed FACW Trifolium productum Shasta Clover FAC FACU Tolmiea diplomenziesii FAC Soltis & Trifolium repens White Clover FACU Symphyotrichum foliaceum Alpine Leafy-Head American-Aster P.S. Soltis Trifolium resupinatum Reversed Clover UPL UPL Tolmiea menziesii Piggyback-Plant FACW Trifolium variegatum White-Tip Clover FAC Symphyotrichum frondosum Leafy American-Aster FACW Torreyochloa erecta Spiked False Manna Grass OBL Trifolium willdenowii Springbank Clover FACW Symphyotrichum laeve Smooth Blue American-Aster FACU Torreyochloa pallida Pale False Manna Grass OBL Trifolium wormskioldii Cow Clover FACW Symphyotrichum lanceolatum White Panicled American-Aster OBL Toxicodendron diversilobum Pacific Poison-Oak FACU Triglochin concinna Slender Arrow-Grass OBL Symphyotrichum lentum Suisun Marsh American-Aster OBL Toxicodendron radicans Eastern Poison Ivy FAC Triglochin maritima Seaside Arrow-Grass OBL Symphyotrichum novae-angliae New England American-Aster FACW Toxicodendron rydbergii Western Poison Ivy FACU Triglochin palustris Marsh Arrow-Grass OBL Symphyotrichum ontarionis Ontario American-Aster FAC Toxicoscordion fontanum OBL Triglochin scilloides Flowering-Quillwort OBL Symphyotrichum pilosum White Oldfield American-Aster FACU Toxicoscordion micranthum Small-Flower Poison Camas OBL Triglochin striata Three-Rib Arrow-Grass OBL Symphyotrichum porteri Smooth White American-Aster FACU Toxicoscordion venenosum Meadow Poison Camas FACU Trillium albidum Giant White Trillium FACU Symphyotrichum praealtum Willow-Leaf American-Aster OBL Tradescantia fluminensis Small-Leaf Wandering-Jew FAC Trillium ovatum Western Trillium FACU Symphyotrichum spathulatum Mountain American-Aster FAC Tradescantia occidentalis Prairie Spiderwort FACU Triodanis perfoliata Clasping-Leaf Venus'-Looking-Glass Symphyotrichum squamatum OBL Tradescantia ohiensis Bluejacket FACW FACU Symphyotrichum subspicatum Leafy-Bract American-Aster FACW Tradescantia wrightii Wright's Spiderwort FACW Triphasia trifolia Limeberry FACU Symphyotrichum subulatum Seaside American-Aster OBL Transberingia bursifolia False Fissurewort UPL Tripleurospermum maritimum False Mayweed FACU Symphytum asperum Prickly Comfrey FAC Trautvetteria caroliniensis Carolina Tassel-Rue FACW Tripsacum dactyloides Eastern Mock Grama FAC Synthyris ranunculina Charleston Mountain Kitten's-Tail Triadica sebifera Chinese Tallowtree FAC Trisetum cernuum Tall False Oat FACU OBL Triantha occidentalis Western False Asphodel FACW Trisetum orthochaetum Bitterroot False Oat FACW Tamarix aphylla Athel Tamarisk FAC Trianthema portulacastrum Desert Horse-Purslane FAC Trisetum spicatum Narrow False Oat FACU Tamarix chinensis Five-Stamen Tamarisk FAC Trichocoronis wrightii Limestone Bugheal FACW Triteleia hyacinthina Fool's-Onion FAC Tamarix gallica French Tamarisk FAC Trichophorum caespitosum Tufted Leafless-Bulrush OBL Triteleia ixioides Prettyface FAC Tamarix parviflora Small-Flower Tamarisk FAC Trichophorum clementis Yosemite Leafless-Bulrush FAC Triteleia peduncularis Long-Ray Triplet-Lily FACW Tanacetum vulgare Common Tansy FACU Trichophorum pumilum Rolland's Leafless-Bulrush FACW Trollius laxus American Globeflower OBL Taraxacum californicum California Dandelion FACW Trichostema austromontanum San Jacinto Bluecurls OBL Tropaeolum majus Garden-Nasturtium UPL Taraxacum ceratophorum Horned Dandelion UPL Trichostema lanceolatum Vinegar-Weed FACU Tsuga heterophylla Western Hemlock FACU Taraxacum officinale Common Dandelion FACU Trichostema micranthum Small-Flower Bluecurls FAC Tsuga mertensiana Mountain Hemlock FACU Taraxia breviflora Nested Goldeneggs FAC Tridens albescens White Fluff Grass FACU Tuctoria greenei Awnless Spiral Grass OBL Taraxia subacaulis Spreading Goldeneggs FACW Tridens flavus Tall Redtop UPL Tuctoria mucronata Prickly Spiral Grass OBL Taraxia tanacetifolia Tansy-Leaf Goldeneggs FACU Tridens muticus Awnless Fluff Grass FAC Tussilago farfara Colt's-Foot FACU Tarenaya hassleriana Pinkqueen FACU Trientalis europaea Arctic Starflower FAC Typha X glauca OBL Tauschia tenuissima Leiberg's Umbrella-Wort FACW Trientalis latifolia Western Starflower FAC Typha X provincialis OBL Taxodium distichum Southern Bald-Cypress OBL Trifolium albopurpureum Rancheria Clover FACU Typha angustifolia Narrow-Leaf Cat-Tail OBL Taxus brevifolia Pacific Yew FACU Trifolium amabile Aztec Clover OBL Typha domingensis Southern Cat-Tail OBL Tecoma stans Yellow Trumpetbush UPL Trifolium amoenum Showy Indian Clover FACW Typha latifolia Broad-Leaf Cat-Tail OBL Tellima grandiflora Fragrant Fringecup FACU Trifolium barbigerum Bearded Clover FACW Ulex europaeus Common Gorse UPL Teucrium canadense American Germander FACW Trifolium beckwithii Plumas Clover FAC Ulmus americana American Elm FAC Teucrium chamaedrys Wall Germander FACU Trifolium bolanderi Parasol Clover OBL Ulmus glabra Wych Elm FACU Teucrium cubense Small Coastal Germander FACW Trifolium cyathiferum Bowl Clover FAC Ulmus parvifolia Chinese Elm UPL Thalictrum alpinum Alpine Meadow-Rue FACW Trifolium dasyphyllum Uinta Clover UPL Ulmus pumila Siberian Elm UPL Thalictrum dasycarpum Purple Meadow-Rue FACW Trifolium depauperatum Balloon Sack Clover FAC Ulmus rubra Slippery Elm FAC Thalictrum fendleri Fendler's Meadow-Rue FAC Trifolium douglasii Douglas' Clover FACW Umbellularia californica California-Laurel FAC Thalictrum occidentale Western Meadow-Rue FACU Trifolium dubium Suckling Clover UPL Urochloa fusca Brown-Top Liverseed Grass UPL Thalictrum revolutum Waxy-Leaf Meadow-Rue FACU Trifolium eriocephalum Woolly-Head Clover FAC Urochloa panicoides Panic Liverseed Grass FACU Thalictrum sparsiflorum Few-Flower Meadow-Rue FAC Trifolium fragiferum Strawberry-Head Clover FAC Urochloa platyphylla Broad-Leaf Liverseed Grass FAC Thalictrum venulosum Veiny-Leaf Meadow-Rue FACU Trifolium fucatum Sour Clover FACU Urtica dioica Stinging Nettle FAC Thelypodium brachycarpum Short-Pod Thelypody UPL Trifolium grayi Gray's Clover FACW Utricularia cornuta Horned Bladderwort OBL Thelypodium crispum Crisped Thelypody FACU Trifolium haydenii Hayden's Clover FACU Utricularia gibba Humped Bladderwort OBL Utricularia inflata Swollen Bladderwort OBL Viburnum rufidulum Rusty Blackhaw FACU Zeltnera exaltata Desert Mountain-Pink FACW Utricularia intermedia Flat-Leaf Bladderwort OBL Vicia americana American Purple Vetch FAC Zeltnera glandulifera Sticky Mountain-Pink FACU Utricularia macrorhiza Greater Bladderwort OBL Vicia ludoviciana Louisiana Vetch UPL Zeltnera muehlenbergii Monterey Mountain-Pink FAC Utricularia minor Lesser Bladderwort OBL Vicia nigricans Black Vetch FACU Zeltnera namophila Spring-Loving Mountain-Pink FACW Utricularia ochroleuca Dwarf Bladderwort OBL Vicia sativa Garden Vetch FACU Zeltnera nudicaulis Santa Catalina Mountain-Pink FACW Utricularia striata Striped Bladderwort OBL Viola X viarum FACU Zeltnera trichantha Alkali Mountain-Pink FAC Utricularia subulata Zigzag Bladderwort OBL Viola adunca Hook-Spur Violet FAC Zizania palustris Northern Wild Rice OBL Vaccaria hispanica Cowcockle FACU Viola bicolor Field Pansy FAC Zizia aptera Heart-Leaf Alexanders FAC Vaccinium alaskaense Alaska Blueberry FAC Viola canadensis Canadian White Violet FACU Ziziphus mauritiana Indian Jujube UPL Vaccinium caespitosum Dwarf Blueberry FAC Viola glabella Pioneer Violet FAC Zostera marina Seawrack OBL Vaccinium macrocarpon Large Cranberry OBL Viola hallii Oregon Violet FAC Zoysia matrella Manila Temple Grass FACU Vaccinium membranaceum Square-Twig Blueberry FACU Viola labradorica Alpine Violet FAC Zoysia pacifica Pacific Temple Grass UPL Vaccinium myrtilloides Velvet-Leaf Blueberry FACU Viola langsdorfii Aleutian Violet FACW Vaccinium myrtillus Whortle-Berry FACU Viola macloskeyi Smooth White Violet OBL Vaccinium ovalifolium Oval-Leaf Blueberry UPL Viola missouriensis Missouri Violet FACW Vaccinium ovatum Evergreen Blueberry UPL Viola nephrophylla Northern Bog Violet FACW Vaccinium oxycoccos Small Cranberry OBL Viola palustris Alpine-Marsh Violet FACW Vaccinium parvifolium Red Blueberry FAC Viola pedatifida Crow-Foot Violet FACU Vaccinium scoparium Grouseberry FACU Viola renifolia Kidney-Leaf White Violet FACW Vaccinium uliginosum Alpine Blueberry FACW Viola septentrionalis Northern Woodland Violet FACU Vachellia farnesiana Mealy False Acacia FACU Viola sororia Hooded Blue Violet FAC Vahlodea atropurpurea Arctic-Hair Grass FACW Vitex trifolia Three-Leaf Chastetree UPL Valeriana acutiloba Cordilleran Valerian FACU Vitis aestivalis Summer Grape FACU Valeriana dioica Marsh Valerian FACW Vitis arizonica Canyon Grape FACU Valeriana edulis Tobacco-Root FAC Vitis californica California Grape FACU Valeriana occidentalis Small-Flower Valerian FAC Vitis girdiana Valley Grape FAC Valeriana scouleri Scouler's Valerian FAC Vitis labrusca Fox Grape FACU Valeriana sitchensis Sitka Valerian FAC Vitis riparia River-Bank Grape FAC Valeriana texana Guadalupe Valerian OBL Vitis rupestris Rock Grape FACU Valerianella amarella Hairy Cornsalad FACU Vulpia bromoides Brome Six-Weeks Grass FACU Vallisneria americana American Eel-Grass OBL Vulpia myuros Rat-Tail Six-Weeks Grass FACU Veratrum californicum California False Hellebore FACW Vulpia octoflora Eight-Flower Six-Weeks Grass UPL Veratrum fimbriatum Fringed False Hellebore FACW Waltheria indica Basora-Prieta UPL Veratrum viride American False Hellebore FACW Washingtonia filifera California Fan Palm FAC Verbascum blattaria White Moth Mullein UPL Washingtonia robusta Washington Fan Palm FACW Verbascum thapsus Great Mullein FACU Wislizenia refracta Spectacle-Fruit FACU Verbena bonariensis Purple-Top Vervain FACW Wolffia arrhiza Spotless Watermeal OBL Verbena bracteata Carpet Vervain FAC Wolffia borealis Northern Watermeal OBL Verbena californica Red Hills Vervain FACW Wolffia brasiliensis Brazilian Watermeal OBL Verbena hastata Simpler's-Joy FAC Wolffia columbiana Columbian Watermeal OBL Verbena incompta Brazilian Vervain FACU Wolffia globosa Asian Watermeal OBL Verbena lasiostachys Western Vervain FAC Wolffiella lingulata Tongue-Shape Bogmat OBL Verbena macdougalii New Mexico Vervain FACU Wolffiella oblonga Saber Bogmat OBL Verbena officinalis Herb-of-the-Cross FACU Woodwardia fimbriata Giant Chain Fern FACW Verbena scabra Sandpaper Vervain OBL Woodwardia radicans Rooting Chain Fern OBL Verbena urticifolia White Vervain FAC Wyethia amplexicaulis Northern Mule's-Ears FAC Verbesina encelioides Golden Crownbeard FACU Wyethia angustifolia California-Compassplant FACU Vernonia marginata Plains Ironweed FACU Wyethia helianthoides White-Ray Mule's-Ears FACW Vernonia missurica Missouri Ironweed FACW X Elyhordeum macounii FACU Vernonia noveboracensis New York Ironweed FAC X Leydeum piperi FAC Veronica americana American-Brooklime OBL Xanthisma spinulosum Lacy Sleepy Daisy UPL Veronica anagallis-aquatica Blue Water Speedwell OBL Xanthium spinosum Spiny Cockleburr FACU Veronica arvensis Corn Speedwell FACU Xanthium strumarium Rough Cockleburr FAC Veronica beccabunga European Speedwell OBL Xanthocephalum gymnospermoides San Veronica chamaedrys Germander Speedwell FACU Pedro Matchweed FAC Veronica cusickii Cusick's Speedwell FAC Xerophyllum tenax Western Turkeybeard FACU Veronica officinalis Common Gypsyweed UPL Yabea microcarpa False Hedge-Parsley FACU Veronica peregrina Neckweed FAC Youngia japonica Oriental False Hawk's-Beard FACU Veronica scutellata Grass-Leaf Speedwell OBL Yucca gloriosa Moundlily Yucca UPL Veronica serpyllifolia Thyme-Leaf Speedwell FAC Zannichellia palustris Horned-Pondweed OBL Veronica wormskjoldii American Alpine Speedwell FACW Zantedeschia aethiopica Calla-Lily OBL Viburnum edule Squashberry FACW Zeltnera X nevadensis FACW Viburnum lentago Nanny-Berry FAC Zeltnera beyrichii Quinineweed FACU Viburnum opulus Highbush-Cranberry FACW Zeltnera calycosa Buckley's Mountain-Pink FACW Abrupt-Beak Sedge Carex abrupta FAC Alpine Mountainbalm Monardella odoratissima FACU American White Water-Lily Nymphaea odorata OBL Adam-and-Eve Aplectrum hyemale FAC Alpine Nerve Sedge Carex neurophora FACW American Wild Mint Mentha arvensis FACW Adherent Bristle Grass Setaria adhaerens FACU Alpine Northern-Rockcress Braya humilis UPL American Witch-Hazel Hamamelis virginiana FACU Adobe Black-Snakeroot Sanicula maritima FACW Alpine Pearlwort Sagina saginoides FACW American Yellow-Rocket Barbarea orthoceras FACW Adobe Pincushion-Plant Navarretia nigelliformis FACW Alpine Primrose Primula angustifolia FACU American-Brooklime Veronica americana OBL Adobe Popcorn-Flower Plagiobothrys acanthocarpus OBL Alpine Pussytoes Antennaria alpina FACU Analogue Sedge Carex simulata OBL African Bristle Grass Setaria sphacelata OBL Alpine Sheep Sorrel Rumex paucifolius FAC Andean Water-Milfoil Myriophyllum quitense OBL African Prickle Grass Crypsis vaginiflora OBL Alpine Shootingstar Dodecatheon alpinum FACW Angle-Leaf Mitrewort Ozomelis diversifolia FAC Agate Desert-Parsley Lomatium cookii OBL Alpine Spicy-Wintergreen Gaultheria humifusa FACW Aniseroot Osmorhiza longistylis FACU Ahart's Nailwort Paronychia ahartii FAC Alpine Springbeauty Claytonia megarhiza FACU Annual Blue Grass Poa annua FAC Akan Asante Helminthotheca echioides FAC Alpine Stitchwort Minuartia obtusiloba FACU Annual Checkerbloom Sidalcea calycosa OBL Alaska Bell-Heather Harrimanella stelleriana FACU Alpine Sweet-Vetch Hedysarum alpinum FACU Annual Coastal Plantain Plantago bigelovii OBL Alaska Blueberry Vaccinium alaskaense FAC Alpine Violet Viola labradorica FAC Annual Fimbry Fimbristylis annua FAC Alaska Long-Awn Sedge Carex macrochaeta FACW Alpine-Azalea Loiseleuria procumbens FACW Annual Hair Grass Deschampsia danthonioides FACW Alaska Rein Orchid Piperia unalascensis FACU Alpine-Brook Saxifrage Saxifraga rivularis FACW Annual Jacob's-Ladder Polemonium micranthum FACU Alaska Whitlow-Grass Draba stenoloba FACU Alpine-Laurel Kalmia microphylla OBL Annual Knawel Scleranthus annuus FACU Alaska Wild Rye Elymus alaskanus UPL Alpine-Marsh Violet Viola palustris FACW Annual Marsh-Elder Iva annua FAC Alaska-Cedar Callitropsis nootkatensis FAC Alsike Clover Trifolium hybridum FAC Annual Pearlwort Sagina apetala FAC Alder-Leaf Buckthorn Rhamnus alnifolia OBL Alternate Milkwort Polygala ambigua FACU Annual Rabbit's-Foot Grass Polypogon monspeliensis FACW Aleutian Maidenhair Adiantum aleuticum FAC Alternate-Leaf Flat Sedge Cyperus involucratus FACW Annual Ragweed Ambrosia artemisiifolia FACU Aleutian Violet Viola langsdorfii FACW Amargosa Niterwort Nitrophila mohavensis FACW Annual Wormwood Artemisia annua UPL Alfalfa Medicago sativa UPL American Alpine Lady Fern Athyrium americanum FAC Annual-Phlox Microsteris gracilis FACU Algerian Sea-Lavender Limonium ramosissimum FACW American Alpine Speedwell Veronica wormskjoldii FACW Apache Lobelia Lobelia anatina FACW Alkali American-Aster Symphyotrichum ciliatum FACW American Basswood Tilia americana FACU Aparejo Grass Muhlenbergia utilis FACW Alkali Buttercup Cyrtorhyncha cymbalaria OBL American Beach Grass Ammophila breviligulata FACU Apetalous Catchfly Silene uralensis FACW Alkali Cord Grass Spartina gracilis FACW American Bistort Bistorta bistortoides FACW Apple Mint Mentha suaveolens FACW Alkali Desert-Parsley Lomatium caruifolium FACW American Bittersweet Celastrus scandens FACU Arctic Alpine Fleabane Erigeron humilis FACW Alkali Goldfields Lasthenia platycarpha FACW American Black Nightshade Solanum americanum FACU Arctic Bellflower Campanula uniflora FAC Alkali Indian-Paintbrush Castilleja minor OBL American Bluehearts Buchnera americana FAC Arctic Blue Grass Poa arctica FACU Alkali Jimmyweed Isocoma acradenia FACU American Bugseed Corispermum americanum FACU Arctic Burr-Reed Sparganium natans OBL Alkali Mariposa-Lily Calochortus striatus FACW American Burnweed Senecio hieraciifolius FACU Arctic Buttercup Ranunculus grayi FAC Alkali Milk-Vetch Astragalus tener FACW American Century-Plant Agave americana UPL Arctic Cotton-Grass Eriophorum callitrix FACW Alkali Mountain-Pink Zeltnera trichantha FAC American Cow-Parsnip Heracleum maximum FACW Arctic Hare-Foot Sedge Carex lachenalii OBL Alkali Muhly Muhlenbergia asperifolia FACW American Cow-Wheat Melampyrum lineare FAC Arctic Lupine Lupinus arcticus FACU Alkali Pepperwort Lepidium dictyotum FAC American Deerweed Acmispon americanus UPL Arctic Starflower Trientalis europaea FAC Alkali Popcorn-Flower Plagiobothrys leptocladus OBL American Dragonhead Dracocephalum parviflorum FACU Arctic Sweet-Colt's-Foot Petasites frigidus FACW Alkali Sandspurry Spergularia diandra FACW American Eel-Grass Vallisneria americana OBL Arctic Willow Salix arctica FAC Alkali Sea-Heath Frankenia salina FACW American Elm Ulmus americana FAC Arctic-Hair Grass Vahlodea atropurpurea FACW Alkali Stinkweed Cleomella plocasperma FACW American False Hellebore Veratrum viride FACW Arizona Alder Alnus oblongifolia FACW Alkali Wildrye Leymus simplex FAC American Germander Teucrium canadense FACW Arizona Barley Hordeum arizonicum FAC Alkali Yellowtops Flaveria campestris FACW American Globeflower Trollius laxus OBL Arizona Beggarticks Bidens aurea OBL Alkali-Mallow Malvella leprosa FACU American Hog-Peanut Amphicarpaea bracteata FACW Arizona Dewberry Rubus arizonensis FACU Alkali-Marsh Ragwort Senecio hydrophilus OBL American Licorice Glycyrrhiza lepidota FAC Arizona Eryngo Eryngium sparganophyllum OBL Alkali-Sacaton Sporobolus airoides FAC American Lopseed Phryma leptostachya FACU Arizona Monkshood Aconitum infectum FACW Alkali-Sink Goldfields Lasthenia chrysantha FAC American Lotus Nelumbo lutea OBL Arizona Mousetail Myosurus cupulatus FAC Allegheny Blackberry Rubus allegheniensis FACU American Lyme Grass Leymus mollis FACU Arizona Passion-Flower Passiflora arizonica FAC Allegheny Monkey-Flower Mimulus ringens OBL American Manna Grass Glyceria grandis OBL Arizona Sneezeweed Helenium arizonicum FACW Alligator Juniper Juniperus deppeana FACU American Milk-Vetch Astragalus americanus FAC Arizona Sunflower-Weed Tithonia thurberi FACW Alligator-Weed Alternanthera philoxeroides OBL American Pillwort Pilularia americana OBL Arizona Sycamore Platanus wrightii FACW Alpine Bittercress Cardamine bellidifolia FAC American Plum Prunus americana FACU Arizona Thistle Cirsium arizonicum FACU Alpine Bitter-Root Lewisia pygmaea FACU American Pokeweed Phytolacca americana FAC Arizona Walnut Juglans major FAC Alpine Blue Grass Poa alpina FAC American Purple Vetch Vicia americana FAC Arizona Willow Salix arizonica OBL Alpine Blueberry Vaccinium uliginosum FACW American Saw-Wort Saussurea americana FACW Arizona Woodbeauty Drymocallis arizonica FAC Alpine Buttercup Ranunculus adoneus FACW American Screw-Bean Prosopis pubescens FAC Arnow's Blue Grass Poa arnowiae FACU Alpine Coraldrops Besseya alpina FACW American Searocket Cakile edentula FACU Arrow Saltbush Atriplex phyllostegia FACW Alpine Creeping-Cedar Diphasiastrum alpinum FAC American Silver-Berry Elaeagnus commutata FAC Arrowhead Thelypody Thelypodium sagittatum FACW Alpine False Bent Podagrostis humilis FACW American Silvertop Glehnia littoralis UPL Arrow-Leaf Ragwort Senecio triangularis FACW Alpine Fleeceflower Aconogonon phytolaccifolium FAC American Slough Grass Beckmannia syzigachne OBL Arrow-Leaf Tearthumb Persicaria sagittata OBL Alpine Gentian Gentiana newberryi FACW American Spikenard Aralia racemosa FAC Arrow-Weed Pluchea sericea FACW Alpine Leafy-Head American-Aster American Spongeplant Limnobium spongia OBL Arroyo Willow Salix lasiolepis FACW Symphyotrichum foliaceum UPL American Sycamore Platanus occidentalis FAC Artist's Popcorn-Flower Plagiobothrys chorisianus OBL Alpine Meadow-Foxtail Alopecurus magellanicus FACW American Twinflower Linnaea borealis FACU Arum-Leaf Arrowhead Sagittaria cuneata OBL Alpine Meadow-Rue Thalictrum alpinum FACW American Water-Awlwort Subularia aquatica OBL Ash Meadows Blazingstar Mentzelia leucophylla FAC Alpine Milk-Vetch Astragalus alpinus FAC American Water-Willow Justicia americana OBL Ash Meadows Gumweed Grindelia fraxinipratensis FACW Ash Meadows Ladies'-Tresses Spiranthes infernalis FACW Basket Rush Juncus textilis FACW Black-Eyed-Susan Rudbeckia hirta FACU Ash Meadows Milk-Vetch Astragalus phoenix FACU Basket Willow Salix viminalis FACW Black-Flower Figwort Scrophularia atrata FACU Ash-Leaf Maple Acer negundo FACW Basora-Prieta Waltheria indica UPL Black-Foot Groundsmoke Gayophytum racemosum FAC Ashy Pipewort Eriocaulon cinereum OBL Bastard-Toadflax Comandra umbellata UPL Black-Foot Quillwort Isoetes melanopoda OBL Asian Forget-Me-Not Myosotis asiatica FAC Bay Forget-Me-Not Myosotis laxa OBL Black-Fruit Dogwood Cornus sessilis FAC Asian Pony's-Foot Dichondra micrantha FACW Beach Saltbush Atriplex leucophylla FAC Black-Girdle Bulrush Scirpus atrocinctus OBL Asian Watermeal Wolffia globosa OBL Beach She-Oak Casuarina equisetifolia FACU Black-Head Fleabane Erigeron melanocephalus FAC Asian Waterwort Elatine ambigua OBL Beach Starwort Stellaria littoralis OBL Black-Root Sedge Carex elynoides FAC Asiatic Dayflower Commelina communis FAC Beach Strawberry Fragaria chiloensis FACU Black-Sand Spike-Rush Eleocharis pachycarpa OBL Asparagus Asparagus officinalis FACU Beaked Ditch-Grass Ruppia maritima OBL Black-Seed Plantain Plantago rugelii FAC Aspen Onion Allium bisceptrum FACU Beaked Hazelnut Corylus cornuta FACU Black-Seed Sandspurry Spergularia atrosperma FACW Asthmaweed Erigeron bonariensis FACU Beaked Spike-Rush Eleocharis rostellata OBL Blond Plantain Plantago ovata FACU Athel Tamarisk Tamarix aphylla FAC Bearded Clover Trifolium barbigerum FACW Blood Currant Ribes sanguineum UPL Atlantic Ninebark Physocarpus opulifolius FACU Bearded Cup Grass Eriochloa aristata FACW Bloodflower Asclepias curassavica FAC Atlantic Pigeonwings Clitoria mariana FACU Bearded Fescue Festuca subulata FACU Blow-Wives Achyrachaena mollis FAC August-Flower Scorzoneroides autumnalis FAC Bearded Popcorn-Flower Plagiobothrys hystriculus FACW Blue Lobelia Palmerella debilis FACW Aunt Lucy Ellisia nyctelea FACU Bearded Sedge Carex comosa OBL Blue Mud-Plantain Heteranthera limosa OBL Austin's Popcorn-Flower Plagiobothrys austiniae OBL Bearded Sprangletop Diplachne fusca FACW Blue Panic Grass Panicum coloratum FACW Australian Beard Grass Bothriochloa bladhii FACU Beardless Lyme Grass Leymus triticoides FAC Blue Spruce Picea pungens FAC Australian Saltbush Atriplex semibaccata FAC Beardless Rabbit's-Foot Grass Polypogon viridis FACW Blue Stickseed Hackelia micrantha FACU Australian Sundew Drosera aliciae OBL Beautiful Fleabane Erigeron formosissimus UPL Blue Water Speedwell Veronica anagallis-aquatica OBL Australian Water-Buttons Cotula australis FAC Bebb's Sedge Carex bebbii OBL Blue Wild Rye Elymus glaucus FACU Austrian Yellowcress Rorippa austriaca FACW Beck's Water-Marigold Bidens beckii OBL Blue Windflower Anemone oregana FACU Autumn Dwarf-Gentian Gentianella amarella FACW Bee-Thistle Eryngium articulatum OBL Bluebell-of-Scotland Campanula rotundifolia FACU Autumn Water-Starwort Callitriche hermaphroditica OBL Behring Wood-Aster Eurybia merita FACU Blueberry Willow Salix myrtillifolia FACW Autumn Willow Salix serissima OBL Bellard's Knotweed Polygonum patulum FACW Bluebill Clematis pitcheri FACU Awl-Leaf Mudwort Limosella aquatica OBL Bering Sea Mouse-Ear Chickweed Bluebunch Fescue Festuca idahoensis FACU Awl-Leaf Pincushion-Plant Navarretia subuligera FACU Cerastium beeringianum FACU Bluedicks Dichelostemma capitatum FACU Awned Flat Sedge Cyperus squarrosus OBL Berlandier's Lobelia Lobelia berlandieri FAC Blue-Dome Primrose Primula alcalina OBL Awned Halfchaff Sedge Lipocarpha aristulata FACW Bermuda Grass Cynodon dactylon FACU Bluejacket Tradescantia ohiensis FACW Awnless Fluff Grass Tridens muticus FAC Biennial Cinquefoil Potentilla biennis FACW Bluejoint Calamagrostis canadensis FACW Awnless Spiral Grass Tuctoria greenei OBL Biennial Wormwood Artemisia biennis FACW Bluemink Ageratum houstonianum FACU Awnless Wild Rye Elymus curvatus FAC Big Bluestem Andropogon gerardii FACU Blue-Pod Lupine Lupinus polyphyllus FAC Aztec Clover Trifolium amabile OBL Big Sandburr Cenchrus myosuroides FACU Blunt Spike-Rush Eleocharis obtusa OBL Baby Sun-Rose Carpobrotus chilensis FACU Big Western Bittercress Cardamine occidentalis FACW Blunt-Leaf Grove-Sandwort Moehringia lateriflora FACU Baby-Jump-Up Mecardonia procumbens FACW Bigelow's Beggarticks Bidens bigelovii FACW Blunt-Leaf Orchid Platanthera obtusata FACW Baccharis-Leaf Beardtongue Penstemon baccharifolius FACU Bigelow's False Tansy-Aster Dieteria bigelovii FACW Blunt-Leaf Pondweed Potamogeton obtusifolius OBL Bach's Calico-Flower Downingia bacigalupii OBL Bigelow's Sneezeweed Helenium bigelovii FACW Blunt-Leaf Yellowcress Rorippa curvipes FACW Bahia Grass Paspalum notatum FAC Big-Leaf Maple Acer macrophyllum FAC Bob-Tail Barley Hordeum intercedens FAC Baja Pincushion-Plant Navarretia peninsularis FAC Big-Leaf Sedge Carex amplifolia OBL Boccone's Sandspurry Spergularia bocconi FACW Baker's Meadowfoam Limnanthes bakeri OBL Birch-Leaf False Buckthorn Frangula betulifolia FAC Bodin's Milk-Vetch Astragalus bodinii FACW Baker's Stickyseed Blennosperma bakeri OBL Bird-Eye Pearlwort Sagina procumbens FAC Bog Birch Betula pumila OBL Bakersfield Saltbush Atriplex tularensis FAC Bishop's Goutweed Aegopodium podagraria FAC Bog Chickweed Stellaria alsine OBL Bald-Hip Rose Rosa gymnocarpa FACU Bitter Cherry Prunus emarginata FACU Bog Club-Rush Schoenoplectus mucronatus OBL Baldwin's Flat Sedge Cyperus croceus FAC Bitter Dock Rumex obtusifolius FAC Bog Muhly Muhlenbergia uniflora OBL Ball Saltbush Atriplex fruticulosa FACW Bitter Fleabane Erigeron acris FACU Bog Orchid Platanthera aquilonis OBL Ballona Cinquefoil Potentilla multijuga OBL Bitter Panic Grass Panicum amarum FACU Bog Pseudosaxifrage Micranthes oregana OBL Balloon Sack Clover Trifolium depauperatum FAC Bitterroot False Oat Trisetum orthochaetum FACW Bog Rush Juncus marginatus FACW Balsam Groundsel Packera paupercula FACW Black Alpine Sedge Carex nigricans FACW Bog Smartweed Persicaria setacea OBL Balsam Poplar Populus balsamifera FAC Black Bent Agrostis gigantea FACW Bog Stitchwort Minuartia stricta FAC Balsam-Pear Momordica charantia FACU Black Bog-Rush Schoenus nigricans OBL Bog Willow Salix pedicellaris OBL Baltic Rush Juncus balticus FACW Black Cherry Prunus serotina FACU Bog Willowherb Epilobium leptophyllum FACW Banana Water-Lily Nymphaea mexicana OBL Black Crowberry Empetrum nigrum FAC Bog Yellowcress Rorippa palustris OBL Bandanna-of-the-Everglades Canna flaccida OBL Black Elder Sambucus nigra FACU Boggs Lake Hedge-Hyssop Gratiola heterosepala OBL Barb Grass Hainardia cylindrica FACW Black Flat Sedge Cyperus niger FACW Bog-Rosemary Andromeda polifolia OBL Barclay's Willow Salix barclayi FACW Black Hawthorn Crataegus douglasii FAC Boissier's Glory-of-the-Snow Scilla luciliae FACU Bare Monkey-Flower Mimulus nudatus OBL Black Locust Robinia pseudoacacia FACU Boivin's Rockcress Boechera grahamii FACU Bare-Stem Bishop's-Cap Mitella nuda FACW Black Medick Medicago lupulina FAC Bolander's Groundsel Packera bolanderi FAC Barkley's-Ragwort Barkleyanthus salicifolius FAC Black Spleenwort Asplenium adiantum-nigrum FACU Bolander's Mock Dandelion Phalacroseris bolanderi OBL Barratt's Willow Salix barrattiana FACW Black Vetch Vicia nigricans FACU Bolander's Quillwort Isoetes bolanderi OBL Barrel Medick Medicago truncatula FACU Black Walnut Juglans nigra UPL Bolander's Reed Grass Calamagrostis bolanderi FACW Barton's Raspberry Rubus bartonianus FACW Black Willow Salix nigra OBL Bolander's Rush Juncus bolanderi OBL Basin Angelica Angelica kingii FACW Black-and-White-Scale Sedge Carex albonigra FACU Bolander's Sedge Carex bolanderi FAC Basin Saltbush Atriplex tridentata FACW Black-Bindweed Fallopia convolvulus FACU Bolander's Spike-Rush Eleocharis bolanderi FACW Bolander's Sunflower Helianthus bolanderi FAC Brown-Head Rush Juncus phaeocephalus FACW California Muhly Muhlenbergia californica FACW Bolander's Wood-Reed Cinna bolanderi FACW Brownies Mimulus douglasii FACW California Orcutt Grass Orcuttia californica OBL Bonneville Saltbush Atriplex bonnevillensis FACW Brownish Beak Sedge Rhynchospora capitellata OBL California Popcorn-Flower Plagiobothrys distantiflorus OBL Bonneville Shootingstar Dodecatheon conjugens FACU Brownish Sedge Carex brunnescens OBL California Pseudosaxifrage Micranthes californica FACW Booth's Willow Salix boothii FACW Brown-Ray Knapweed Centaurea jacea FACU California Rhododendron Rhododendron macrophyllum FACU Boraxweed Nitrophila occidentalis FACW Brown-Seed Crown Grass Paspalum plicatulum FAC California Rose Rosa californica FAC Border Honeydew Horkelia bolanderi FAC Brown-Top Liverseed Grass Urochloa fusca UPL California Satintail Imperata brevifolia FAC Boreal American-Aster Symphyotrichum boreale OBL Bruce's Cinquefoil Potentilla bruceae FAC California Saw-Grass Cladium californicum OBL Boreal Sagebrush Artemisia norvegica FACU Buck-Bean Menyanthes trifoliata OBL California Scalebroom Lepidospartum squamatum FACU Boreal Starwort Stellaria borealis FACW Buck-Horn Plantain Plantago coronopus FAC California Sedge Carex californica FACW Boreal Stitchwort Minuartia rubella FACU Buckley's Mountain-Pink Zeltnera calycosa FACW California Spikenard Aralia californica FACW Boreal-Bog Sedge Carex magellanica OBL Buek's Groundsel Packera subnuda FACW California Stitchwort Minuartia californica FACU Boston Sword Fern Nephrolepis exaltata FACU Buffalo Grass Bouteloua dactyloides FACU California Sunflower Helianthus californicus OBL Botao-de-Ouro Jaegeria hirta FACU Buffel Grass Cenchrus ciliaris UPL California Sycamore Platanus racemosa FAC Bouncing-Bett Saponaria officinalis FACU Bugle Hedge-Nettle Stachys ajugoides OBL California Waterwort Elatine californica OBL Bowl Clover Trifolium cyathiferum FAC Bulblet Bladder Fern Cystopteris bulbifera FAC California Wild Oat Grass Danthonia californica FAC Bracted American-Aster Symphyotrichum bracteolatum FAC Bulblet-Bearing Water-Hemlock Cicuta bulbifera OBL California Willow Dock Rumex californicus FACW Bracted Bedstraw Galium microphyllum FACU Bulbous Blue Grass Poa bulbosa FACU California Yampah Perideridia californica FACW Bracted Popcorn-Flower Plagiobothrys bracteatus FACW Bull Elephant's-Head Pedicularis groenlandica OBL California-Compassplant Wyethia angustifolia FACU Bracted Saltbush Atriplex serenana FAC Bull Thistle Cirsium vulgare FACU California-Laurel Umbellularia californica FAC Bractless Hedge-Hyssop Gratiola ebracteata OBL Burke's Goldfields Lasthenia burkei OBL California-Molly Neokochia californica FACW Branched Centaury Centaurium pulchellum FACU Burr Oak Quercus macrocarpa FAC Calistoga Popcorn-Flower Plagiobothrys strictus OBL Branched Scorpion-Weed Phacelia ramosissima FACU Bush-Violet Browallia eludens FACW Calla-Lily Zantedeschia aethiopica OBL Brazilian Peppertree Schinus terebinthifolia FAC Bushy Bird's-Beak Cordylanthus ramosus FACU Camelthorn Alhagi maurorum FAC Brazilian Vervain Verbena incompta FACU Bushy Bluestem Andropogon glomeratus FACW Camphortree Cinnamomum camphora UPL Brazilian Watermeal Wolffia brasiliensis OBL Bushy Cinquefoil Potentilla supina FACW Canada-Aster Canadanthus modestus FACW Brazilian-Waterweed Egeria densa OBL Bushy Seaside-Tansy Borrichia frutescens FACW Canadian Blue Lettuce Lactuca canadensis FACU Brewer's Cinquefoil Potentilla breweri FAC Buttercup Hemieva Hemieva ranunculifolia FAC Canadian Bunchberry Cornus canadensis FAC Brewer's Monkey-Flower Mimulus breweri FACU Byron Larkspur Delphinium recurvatum FACU Canadian Burnet Sanguisorba canadensis FACW Brewer's Rush Juncus breweri FACW California Adder's-Tongue Ophioglossum californicum FAC Canadian Gooseberry Ribes oxyacanthoides FACU Brewer's Willow Salix breweri FAC California Alkali Grass Puccinellia simplex FACW Canadian Horseweed Erigeron canadensis FACU Bride's-Feathers Aruncus dioicus FACU California Amaranth Amaranthus californicus FACW Canadian Milk-Vetch Astragalus canadensis FAC Bristle-Leaf Lateral-Bulrush Isolepis setacea FACW California Beak Sedge Rhynchospora californica OBL Canadian Rockcress Boechera stricta FACU Bristle-Seed Sandspurry Spergularia echinosperma OBL California Black Currant Ribes bracteosum FAC Canadian Sandspurry Spergularia canadensis FACW Bristly Bedstraw Galium uncinulatum FAC California Blue-Eyed-Grass Sisyrinchium bellum FACW Canadian Single-Spike Sedge Carex scirpoidea FAC Bristly Black Gooseberry Ribes lacustre FACW California Bog Asphodel Narthecium californicum OBL Canadian Thistle Cirsium arvense FACU Bristly Mousetail Myosurus apetalus OBL California Brickellbush Brickellia californica FACU Canadian Waterweed Elodea canadensis OBL Bristly-Fruit Scaleseed Spermolepis echinata FACU California Buttercup Ranunculus californicus FACU Canadian White Violet Viola canadensis FACU Bristly-Stalk Sedge Carex leptalea OBL California Butterwort Pinguicula macroceras OBL Canby's Wild Lovage Ligusticum canbyi FAC Brittle Bladder Fern Cystopteris fragilis FACU California Canary Grass Phalaris californica FAC Cane Beard Grass Bothriochloa barbinodis UPL Brittlescale Atriplex parishii FAC California Club-Rush Schoenoplectus californicus OBL Cantelow's Bitter-Root Lewisia cantelovii OBL Brittle-Stem Hemp-Nettle Galeopsis tetrahit FACU California Coast Larkspur Delphinium californicum FACU Canyon Bog Orchid Platanthera sparsiflora FACW Broad-Fruit Burr-Reed Sparganium eurycarpum OBL California Coneflower Rudbeckia californica FACW Canyon Clover Trifolium howellii FACW Broad-Leaf Carpet Grass Axonopus compressus FACW California Cord Grass Spartina foliosa OBL Canyon Grape Vitis arizonica FACU Broad-Leaf Cat-Tail Typha latifolia OBL California Crane's-Bill Geranium californicum FAC Canyon Maple Acer grandidentatum FACU Broad-Leaf Fireweed Chamaenerion latifolium FACW California Dandelion Taraxacum californicum FACW Canyon Sage Salvia lycioides FACU Broad-Leaf Liverseed Grass Urochloa platyphylla FAC California Dewberry Rubus ursinus FAC Cape Leadwort Plumbago auriculata UPL Broad-Leaf Lupine Lupinus latifolius FACW California Eryngo Eryngium aristulatum OBL Cape Rattlebox Crotalaria capensis FACU Broad-Leaf Pepperwort Lepidium latifolium FAC California False Hellebore Veratrum californicum FACW Cape Sundew Drosera capensis OBL Broad-Leaf Pondweed Potamogeton natans OBL California False Semaphore Grass Cape-Pondweed Aponogeton distachyos OBL Broad-Lip Twayblade Neottia convallarioides FAC Pleuropogon californicus OBL Capitate Sedge Carex capitata FAC Broad-Tooth Monkey-Flower Mimulus latidens OBL California Fan Palm Washingtonia filifera FAC Capitate Spike-Rush Eleocharis geniculata OBL Brome Six-Weeks Grass Vulpia bromoides FACU California Fescue Festuca californica FACU Caraway Carum carvi FACU Bronze-Head Oval Sedge Carex foenea FACU California Figwort Scrophularia californica FAC Cardinal-Flower Lobelia cardinalis OBL Brook Cinquefoil Potentilla rivalis FACW California Goldfields Lasthenia californica FACU Careless Weed Amaranthus palmeri FACU Brook Lobelia Lobelia kalmii OBL California Grape Vitis californica FACU Carelessweed Cyclachaena xanthiifolia FAC Brook Primrose Primula parryi FAC California Indian-Potato Orogenia fusiformis FACW Carolina Bristle-Mallow Modiola caroliniana FAC Brook Willowherb Epilobium torreyi FACW California Indigo-Bush Amorpha californica FAC Carolina Coralbead Cocculus carolinus FACU Broom Seepweed Suaeda californica FACW California Lady's-Slipper Cypripedium californicum OBL Carolina Fanwort Cabomba caroliniana OBL Broom-Corn Sorghum bicolor FACU California Loosestrife Lythrum californicum OBL Carolina Horse-Nettle Solanum carolinense FACU Broom-Sedge Andropogon virginicus FAC California Maidenhair Adiantum jordanii FAC Carolina Laurel Cherry Prunus caroliniana FACU Brown Bog Sedge Carex buxbaumii OBL California Mistmaiden Romanzoffia californica FAC Carolina Leaf-Flower Phyllanthus caroliniensis FAC Brown-Bract Pussytoes Antennaria umbrinella FACU California Mock Saltbush Extriplex californica FAC Carolina Tassel-Rue Trautvetteria caroliniensis FACW Brown-Eyed-Susan Rudbeckia triloba FACU California Monkey-Fiddle Hesperochiron californicus FACU Carpet Vervain Verbena bracteata FAC Carrizo Creek Groundsel Packera spellenbergii UPL perfoliata FACU Common Fox Sedge Carex vulpinoidea OBL Carter's Buttercup Ranunculus bonariensis OBL Claybank Onion Allium lemmonii FACU Common Gorse Ulex europaeus UPL Cascade Azalea Rhododendron albiflorum FACU Clearwater Phlox Phlox idahonis FACW Common Gypsyweed Veronica officinalis UPL Cascade Beardtongue Penstemon serrulatus FACU Cleft Sedge Carex fissuricola FACW Common Hackberry Celtis occidentalis FAC Cascade Calico-Flower Downingia yina OBL Cleveland's Groundsel Packera clevelandii FACW Common Heath Grass Danthonia decumbens FAC Cascade Canada Goldenrod Solidago elongata FACU Cleveland's Milk-Vetch Astragalus clevelandii FAC Common Hop Humulus lupulus FACU Cascade Mountain-Ash Sorbus scopulina FACU Cliff Pseudosaxifrage Micranthes fragosa FACW Common Hoptree Ptelea trifoliata UPL Cascade Oregon-Grape Mahonia nervosa FACU Clifford's Ragwort Senecio cliffordii UPL Common Juniper Juniperus communis FACU Cascade Reed Grass Calamagrostis tweedyi FAC Climbing Nightshade Solanum dulcamara FAC Common Mare's-Tail Hippuris vulgaris OBL Cascade Sedge Carex scabriuscula FACW Clubmoss Mousetail Ivesia lycopodioides FAC Common Milkweed Asclepias syriaca FACU Cascade Willow Salix cascadensis FACU Clustered Field Sedge Carex praegracilis FACW Common Moonwort Botrychium lunaria FAC Cascara False Buckthorn Frangula purshiana FACU Clustered Goldenweed Pyrrocoma racemosa FAC Common Morning-Glory Ipomoea purpurea UPL Castor-Bean Ricinus communis FACU Clustered Lady's-Slipper Cypripedium fasciculatum FACU Common Mouse-Ear Chickweed Catchfly Prairie-Gentian Eustoma exaltatum OBL Clustered Moonshine-Daisy Deinandra fasciculata FACU Cerastium fontanum FACU Catnip Nepeta cataria FACU Clustered Rose Rosa pisocarpa FAC Common Nipplewort Lapsana communis FAC Cattle-Spinach Atriplex polycarpa FACU Clustered Yellowtops Flaveria trinervia FAC Common Panic Grass Panicum capillare FACU Cedar-Breaks Milk-Vetch Astragalus limnocharis OBL Coaltown Sagebrush Artemisia cana FACU Common Persimmon Diospyros virginiana FAC Cerro Hawthorn Crataegus erythropoda FAC Coarse Globe Beak Sedge Rhynchospora recognita FACW Common Red Raspberry Rubus idaeus FACU Chaffweed Lysimachia minima FACW Coast Goldenrod Solidago spathulata FACU Common Reed Phragmites australis FACW Chairmaker's Club-Rush Schoenoplectus americanus OBL Coast Iris Iris longipetala FACW Common River Grass Scolochloa festucacea OBL Chamisso's Candy-Flower Montia chamissoi OBL Coastal Black Gooseberry Ribes divaricatum FAC Common Selfheal Prunella vulgaris FACU Chamisso's Cotton-Grass Eriophorum chamissonis OBL Coastal Brookfoam Boykinia occidentalis FAC Common Sheep Sorrel Rumex acetosella FACU Chaparral Willowherb Epilobium minutum FACU Coastal Burnweed Senecio minimus FACU Common Silver-Hair Grass Aira caryophyllea FACU Charleston Mountain Kitten's-Tail Synthyris Coastal Dock Rumex persicarioides FACW Common Snowberry Symphoricarpos albus FACU ranunculina OBL Coastal Eryngo Eryngium armatum FACW Common Sow-Thistle Sonchus oleraceus UPL Charleston Mountain Whitlow-Grass Draba Coastal Goldfields Lasthenia minor FACW Common Spike-Rush Eleocharis palustris OBL paucifructa FAC Coastal Hedge-Nettle Stachys chamissonis OBL Common St. John's-Wort Hypericum perforatum FACU Chestnut Rush Juncus castaneus FACW Coastal Lily Lilium maritimum FACW Common Stickyseed Blennosperma nanum FACW Chicory Cichorium intybus FACU Coastal Monkey-Flower Mimulus dentatus OBL Common Sunflower Helianthus annuus FACU Chihuahuan Water-Clover Marsilea mollis OBL Coastal Salt Grass Distichlis spicata FAC Common Tansy Tanacetum vulgare FACU Chihuahuan Yellowcress Rorippa microtitis FACW Coastal Sneezeweed Helenium bolanderi FACW Common Timothy Phleum pratense FACU Chilean Plantain Plantago firma FACW Coastal Willow Salix hookeriana FACW Common Velvet Grass Holcus lanatus FAC Chilean Rabbit's-Foot Grass Polypogon australis FACW Coastal Wormwood Artemisia suksdorfii FACU Common Water-Hyacinth Eichhornia crassipes OBL Chilean Waterwort Elatine chilensis OBL Coastal-Sand Sedge Carex incurviformis FAC Common Wood-Rush Luzula multiflora FACU Chilean Woollyheads Psilocarphus chilensis FACW Cobraplant Darlingtonia californica OBL Common Wormwood Artemisia vulgaris UPL China-Berry Melia azedarach UPL Cock's-Head Astragalus agrestis FAC Common Yampah Perideridia gairdneri FAC Chinese Camp Cluster-Lily Brodiaea pallida FACW Codlins-and-Cream Epilobium hirsutum FACW Common Yarrow Achillea millefolium FACU Chinese Elm Ulmus parvifolia UPL Coffeeweed Senna obtusifolia UPL Common-Wireweed Sida acuta UPL Chinese Mustard Brassica juncea FACU Colombian Brome Bromus vulgaris FACU Compact Brome Bromus madritensis UPL Chinese Silver Grass Miscanthus sinensis FACU Colonial Bent Agrostis capillaris FAC Congdon's Bulrush Scirpus congdonii FACW Chinese Tallowtree Triadica sebifera FAC Colorado Blue Columbine Aquilegia caerulea FACU Congdon's Monkey-Flower Mimulus congdonii FAC Chinese Willow Salix babylonica FAC Colorado Rush Juncus confusus FAC Constance's Bittercress Cardamine constancei FAC Chinese-Lantern Quincula lobata FACU Colorado Wood-Rush Luzula subcapitata OBL Contra Costa Goldfields Lasthenia conjugens FACW Chinkapin Oak Quercus muehlenbergii FAC Colt's-Foot Tussilago farfara FACU Contra Costa Jimmyweed Isocoma arguta FACU Chiricahua Mountain Brookweed Samolus Columbian Monkshood Aconitum columbianum FACW Coon's-Tail Ceratophyllum demersum OBL vagans OBL Columbian Pseudosaxifrage Micranthes integrifolia FACW Cooper's Rush Juncus cooperi FACW Chiricahua Mountain Eryngo Eryngium lemmonii FAC Columbian Sedge Carex aperta FACW Copperweed Euphrosyne acerosa FACU Chiricahua Mountain Larkspur Delphinium andesicola FACU Columbian Watermeal Wolffia columbiana OBL Coppery-Mesemb Malephora crocea FACU Chiricahua Mountain Mudwort Limosella pubiflora OBL Columbian Yellowcress Rorippa columbiae OBL Coral-Berry Symphoricarpos orbiculatus UPL Chiricahua Mountain Stinkweed Colusa Grass Neostapfia colusana OBL Cordilleran Leopardbane Arnica mollis FAC Cleomella longipes FACU Comb-Top Muhly Muhlenbergia pectinata OBL Cordilleran Valerian Valeriana acutiloba FACU Choke Cherry Prunus virginiana FAC Common Alp-Lily Lloydia serotina FACU Corn Speedwell Veronica arvensis FACU Christmas-Candlestick Leonotis nepetifolia FACU Common Blown Grass Lachnagrostis filiformis FACW Corpse Black-Bindweed Fallopia dumetorum FACU Chufa Cyperus esculentus FACW Common Bluecup Githopsis specularioides FACU Cotton-Batting-Plant Pseudognaphalium stramineum Church-Mouse Three-Awn Aristida dichotoma FACU Common Brassbuttons Cotula coronopifolia OBL FAC Clammy Clover Trifolium obtusiflorum FAC Common Buttonbush Cephalanthus occidentalis OBL Cottongrass Bulrush Scirpus cyperinus OBL Clammy Hedge-Hyssop Gratiola neglecta OBL Common Canary Grass Phalaris canariensis FACU Cotula-Leaf Pincushion-Plant Navarretia cotulifolia OBL Clark Valley Larkspur Delphinium geraniifolium FAC Common Chickweed Stellaria media FACU Coulter's Saltbush Atriplex coulteri FACU Clark's Ragwort Senecio clarkianus FACW Common Dandelion Taraxacum officinale FACU Coulter's Woolwort Laennecia coulteri FAC Clasping Pepperwort Lepidium perfoliatum FACU Common Desert Tansy-Aster Arida arizonica FACU Coville's Rush Juncus covillei FACW Clasping Twistedstalk Streptopus amplexifolius FAC Common Duckmeat Spirodela polyrhiza OBL Cow Clover Trifolium wormskioldii FACW Clasping Yellowtops Flaveria chlorifolia FACW Common Duckweed Lemna minor OBL Cowcockle Vaccaria hispanica FACU Clasping-Coneflower Dracopis amplexicaulis FACW Common Fig Ficus carica FACU Coyote Tobacco Nicotiana attenuata FACU Clasping-Leaf Venus'-Looking-Glass Triodanis Common Filbert Corylus avellana FACU Coyote-Thistle Eryngium vaseyi FACW Crawe's Sedge Carex crawei FACW Cut-Leaf Silverpuffs Microseris laciniata FACU Douglas' Knotweed Polygonum douglasii FACU Crawford's Sedge Carex crawfordii FAC Cut-Leaf Teasel Dipsacus laciniatus FACU Douglas' Meadowfoam Limnanthes douglasii OBL Cream Ginger-Lily Hedychium flavescens FAC Cut-Leaf Water-Horehound Lycopus americanus OBL Douglas' Meadowsweet Spiraea douglasii FACW Cream Woodbeauty Drymocallis convallaria FACU Cut-Leaf-Water-Parsnip Berula erecta OBL Douglas' Mesa-Mint Pogogyne douglasii OBL Creambush Holodiscus discolor FACU Cylinder Spike-Rush Eleocharis cylindrica OBL Douglas' Onion Allium douglasii FAC Creeping Buttercup Ranunculus repens FAC Cypress-Vine Ipomoea quamoclit FACU Douglas' Sedge Carex douglasii FAC Creeping Juniper Juniperus horizontalis FACU Daffodil Leopardbane Arnica latifolia FAC Douglas' Silverpuffs Microseris douglasii FACU Creeping Love Grass Eragrostis reptans OBL Dagger-Leaf Rush Juncus ensifolius FACW Douglas' Thistle Cirsium douglasii OBL Creeping Meadow-Foxtail Alopecurus arundinaceus FAC Danglepod Sesbania emerus FAC Douglas' Wormwood Artemisia douglasiana FAC Creeping Molasses Grass Melinis repens UPL Dark Beardtongue Penstemon whippleanus FACU Douglas-Fir Pseudotsuga menziesii FACU Creeping Primrose-Willow Ludwigia repens OBL Dark Mountain Sedge Carex subnigricans FAC Downy Birch Betula pubescens FAC Creeping Snowberry Symphoricarpos mollis FACU Dark-Green Bulrush Scirpus atrovirens OBL Downy Phlox Phlox pilosa FAC Creeping Velvet Grass Holcus mollis FAC Dark-Throat Shootingstar Dodecatheon pulchellum FACW Downy Service-Berry Amelanchier arborea FACU Creeping Water-Hyssop Bacopa repens OBL Darlington's Oak Quercus hemisphaerica FACU Drummond's Cinquefoil Potentilla drummondii FAC Creeping Wild Rye Elymus repens FAC Davidson's Saltbush Atriplex pacifica FACU Drummond's Halfchaff Sedge Lipocarpha drummondii FACW Creeping Yellow Wood-Sorrel Oxalis corniculata FACU Davis' Pepperwort Lepidium davisii FACW Drummond's Rush Juncus drummondii FACW Creeping Yellowcress Rorippa sylvestris OBL Davy's Sedge Carex davyi FACW Drummond's Water-Clover Marsilea drummondii OBL Creeping-Glow-Wort Sibbaldia procumbens FACU Dawson's Angelica Angelica dawsonii FACW Drummond's Willow Salix drummondiana FACW Creeping-Inchplant Callisia repens FACU Deciduous Traveler's-Joy Clematis ligusticifolia FAC Dry-Spike Sedge Carex siccata UPL Creeping-Jenny Lysimachia nummularia FACW Decorative-Millet Echinochloa holciformis FACW Duck-Lettuce Ottelia alismoides OBL Crested Anoda Anoda cristata FAC Deer Fern Blechnum spicant FAC Duck-Potato Sagittaria latifolia OBL Crested Dog's-Tail Grass Cynosurus cristatus FACU Deer Grass Muhlenbergia rigens FAC Dudley's Rush Juncus dudleyi FAC Crested Mosquito Fern Azolla cristata OBL Deer Sedge Carex hallii FACW Dune False Bluestem Schizachyrium littorale FACU Crested Saltbush Atriplex mucronata FACU Deer-Root Iva axillaris FAC Durango Yellowcress Rorippa ramosa FACW Crested Wood Fern Dryopteris cristata FACW Del Norte Willow Salix delnortensis FAC Durango-Root Datisca glomerata FACW Crimson Columbine Aquilegia formosa FAC Delicate Spike-Rush Eleocharis bella FACW Duran's Rush Juncus duranii OBL Crimson-Eyed Rose-Mallow Hibiscus moscheutos OBL Delosperma Delosperma litorale FACU Dusky Willow Salix melanopsis OBL Crisped Thelypody Thelypodium crispum FACU Delta Eryngo Eryngium racemosum OBL Dusky-Seed Sedge Carex pelocarpa FAC Crofton Weed Ageratina adenophora FACU Delta Vetchling Lathyrus jepsonii OBL Dwarf Alkali Grass Puccinellia pumila FACW Cross-Hair Eared Rockcress Arabis crucisetosa FAC Dense False Gily-Flower Allophyllum gilioides FAC Dwarf Arctic Groundsel Packera heterophylla FACU Crow Garlic Allium vineale FACU Dense Sedge Carex densa OBL Dwarf Barley Hordeum depressum FACW Crow-Foot Violet Viola pedatifida FACU Dense-Flower Cord Grass Spartina densiflora OBL Dwarf Bladderwort Utricularia ochroleuca OBL Crown Saltbush Atriplex coronata FACW Dense-Flower Dock Rumex densiflorus FACW Dwarf Blueberry Vaccinium caespitosum FAC Crowpoison Nothoscordum bivalve FACU Dense-Flower Willowherb Epilobium densiflorum FACW Dwarf Blue-Eyed-Grass Sisyrinchium minus FACU Crystalline Iceplant Mesembryanthemum crystallinum Dense-Tuft Hair Sedge Bulbostylis capillaris FACU Dwarf Burr-Ragweed Ambrosia pumila FACU FACU Deptford Pink Dianthus armeria UPL Dwarf Buttercup Ranunculus pygmaeus FACW Cuban-Jute Sida rhombifolia FACU Desert American-Aster Symphyotrichum expansum OBL Dwarf Calico-Flower Downingia pusilla OBL Cultivated Rice Oryza sativa OBL Desert Bird's-Beak Cordylanthus eremicus FACW Dwarf Candy-Flower Montia dichotoma FAC Cultivated Tobacco Nicotiana tabacum UPL Desert Combleaf Polyctenium fremontii FAC Dwarf Checkerbloom Sidalcea malviflora FACW Cunningham Marsh Cinquefoil Potentilla uliginosa OBL Desert Horse-Purslane Trianthema portulacastrum FAC Dwarf Coastweed Amblyopappus pusillus FACW Cunningham Marsh Meadowfoam Desert Mountain-Pink Zeltnera exaltata FACW Dwarf Groundsmoke Gayophytum humile FAC Limnanthes vinculans OBL Desert Pussypaws Cistanthe ambigua FAC Dwarf Monkey-Fiddle Hesperochiron pumilus FAC Cup-Plant Silphium perfoliatum FACW Desert Ragwort Senecio eremophilus FACU Dwarf Plantain Plantago pusilla FAC Curly Blue Grass Poa secunda FACU Desert Tobacco Nicotiana obtusifolia FACU Dwarf Popcorn-Flower Plagiobothrys humistratus OBL Curly Dock Rumex crispus FAC Desert-Willow Chilopsis linearis FAC Dwarf Purple Monkey-Flower Mimulus nanus FACU Curly Pondweed Potamogeton crispus OBL Devil's-Club Oplopanax horridus FAC Dwarf Pygmy-Cudweed Hesperevax caulescens OBL Curly Sedge Carex rupestris FACU Devil's-Pitchfork Bidens frondosa FACW Dwarf Rattlesnake-Plantain Goodyera repens FACU Curly-Cup Gumweed Grindelia squarrosa FACU Devilwood Cartrema americana FAC Dwarf Red Raspberry Rubus pubescens FAC Cursed Buttercup Ranunculus sceleratus OBL Dewey's Sedge Carex deweyana FACU Dwarf Saltwort Salicornia bigelovii OBL Curved Sickle Grass Parapholis incurva FACU Dewy-Stem Willow Salix irrorata FACW Dwarf Scouring-Rush Equisetum scirpoides FAC Curved Wood-Rush Luzula arcuata UPL Diamond-Leaf Frogfruit Phyla fruticosa FAC Dwarf St. John's-Wort Hypericum mutilum FACW Curve-Pod Yellowcress Rorippa curvisiliqua OBL Diamond-Leaf Pseudosaxifrage Micranthes rhomboidea FACW Dwarf Woollyheads Psilocarphus brevissimus FACW Cushion Wild Buckwheat Eriogonum ovalifolium FACU Different-Nerve Sedge Carex heteroneura FAC Eared Redstem Ammannia auriculata OBL Cushion-Pink Silene acaulis UPL Diluvim Ladies'-Tresses Spiranthes diluvialis FACW Early Azalea Rhododendron prinophyllum FAC Cusick's Checkerbloom Sidalcea cusickii FACW Disk Water-Hyssop Bacopa rotundifolia OBL Early Water Grass Echinochloa oryzoides OBL Cusick's Sedge Carex cusickii OBL Ditch Rabbit's-Foot Grass Polypogon interruptus FACW Eastern Black Nightshade Solanum ptychanthum FACU Cusick's Service-Berry Amelanchier cusickii FACU Ditch Reed Grass Calamagrostis scopulorum FAC Eastern Cottonwood Populus deltoides FAC Cusick's Speedwell Veronica cusickii FAC Dock-Leaf Smartweed Persicaria lapathifolia FACW Eastern Daisy Fleabane Erigeron annuus FACU Cusp Clover Trifolium mucronatum FACW Donner Wood-Rush Luzula subcongesta FACW Eastern Mock Grama Tripsacum dactyloides FAC Cut-Leaf Blackberry Rubus laciniatus FACU Dotted Duckmeat Landoltia punctata OBL Eastern Poison Ivy Toxicodendron radicans FAC Cut-Leaf Cinquefoil Potentilla millefolia FACW Dotted Smartweed Persicaria punctata OBL Eastern Red-Cedar Juniperus virginiana FACU Cut-Leaf Evening-Primrose Oenothera laciniata FAC Double-Horn Calico-Flower Downingia bicornuta OBL Eastern Woodland Sedge Carex blanda FAC Cut-Leaf Ground-Cherry Physalis angulata UPL Douglas' Clover Trifolium douglasii FACW Eastern Yellow Star-Grass Hypoxis hirsuta FACW Cut-Leaf Monkey-Flower Mimulus laciniatus FAC Douglas' False Willow Baccharis glutinosa FACW Eastwood's Monkey-Flower Mimulus eastwoodiae OBL Ebony Spleenwort Asplenium platyneuron FACU Fall Panic Grass Panicum dichotomiflorum FACW Flat-Top Goldentop Euthamia graminifolia FAC Edible Thistle Cirsium edule FAC Fall Phlox Phlox paniculata FACU Flat-Top Pussytoes Antennaria corymbosa FAC Effluent Water-Starwort Callitriche trochlearis OBL Fall Sneezeweed Helenium autumnale FACW Flax-Leaf Mountainbalm Monardella linoides FACU Egg Lake Monkey-Flower Mimulus pygmaeus OBL False Caper Euphorbia tirucalli FACU Fleshy Starwort Stellaria crassifolia FACW Eggleston's Sedge Carex egglestonii FACU False Daisy Eclipta prostrata FAC Fleshy Willow Dock Rumex crassus FACW Eight-Flower Six-Weeks Grass Vulpia octoflora UPL False Fissurewort Transberingia bursifolia UPL Floating Marsh-Pennywort Hydrocotyle ranunculoides OBL Eight-Petal Mountain-Avens Dryas ajanensis UPL False Hedge-Parsley Yabea microcarpa FACU Floating Primrose-Willow Ludwigia peploides OBL Elecampane Inula helenium FAC False Indigo-Bush Amorpha fruticosa FACW Flodman's Thistle Cirsium flodmanii FAC Electric Peak Larkspur Delphinium glaucescens FACU False Mayweed Tripleurospermum maritimum FACU Florida Hedge-Nettle Stachys floridana FAC Elegant Calico-Flower Downingia elegans OBL False Melic Grass Schizachne purpurascens FACU Florida Hopbush Dodonaea viscosa FACU Elegant Cluster-Lily Brodiaea elegans FACU False Mermaidweed Floerkea proserpinacoides FACW Florida Tassel-Flower Emilia fosbergii UPL Elegant Milk-Vetch Astragalus eucosmus FACU False Monkey-Flower Mimetanthe pilosa FACW Flowering-Quillwort Triglochin scilloides OBL Elephant Grass Cenchrus purpureus FACU False Mountain Willow Salix pseudomonticola FACW Folded Calico-Flower Downingia ornatissima OBL Elk Sedge Carex garberi FACW False Rhodes Grass Leptochloa crinita FACU Fool's-Huckleberry Menziesia ferruginea FACU Elk Thistle Cirsium foliosum FAC False Toadflax Geocaulon lividum FAC Fool's-Onion Triteleia hyacinthina FAC Elliott's Bent Agrostis elliottiana FACU False Uncinia Sedge Carex microglochin OBL Fool's-Watercress Helosciadium nodiflorum OBL Elliott's Rush Juncus elliottii FACW False Venus'-Looking-Glass Legenere limosa OBL Foothill Flat Sedge Cyperus amabilis FACU Elliptic Spike-Rush Eleocharis elliptica OBL Far-Northern Buttercup Ranunculus hyperboreus OBL Foothill Larkspur Delphinium hesperium FAC Elmer's Blue-Eyed-Grass Sisyrinchium elmeri OBL Farr's Willow Salix farriae OBL Foothill Sedge Carex tumulicola FACU Emory's Sedge Carex emoryi OBL Fassett's Water-Starwort Callitriche fassettii OBL Forest Blue Grass Poa nemoralis FAC Engelmann's Knotweed Polygonum engelmannii FACU Father Crowley's Lupine Lupinus padre-crowleyi FACU Foreward-Barb Bristle Grass Setaria verticilliformis FAC Engelmann's Spike-Rush Eleocharis engelmannii OBL Feather Love Grass Eragrostis amabilis FAC Forked Pepperwort Lepidium oxycarpum OBL Engelmann's Spruce Picea engelmannii FACU Feather Windmill Grass Chloris virgata FACU Forked Rush Juncus dichotomus FACW English Hawthorn Crataegus monogyna FAC Feathery Bamboo Bambusa vulgaris FACU Fountain Candy-Flower Montia fontana OBL English Holly Ilex aquifolium FACU Feathery False Solomon's-Seal Maianthemum racemosum FAC Fountain Thistle Cirsium fontinale OBL English Ivy Hedera helix FACU Felwort Swertia perennis FACW Four-Angle Flat Sedge Cyperus tetragonus FACU English Peak Greenbrier Smilax jamesii FACW Fendler's Cowbane Oxypolis fendleri FACW Four-Line Honeysuckle Lonicera involucrata FAC English Plantain Plantago lanceolata FAC Fendler's Flat Sedge Cyperus fendlerianus FAC Four-Part Dwarf-Gentian Gentianella propinqua FACW English Sundew Drosera anglica OBL Fendler's Meadow-Rue Thalictrum fendleri FAC Four-Part Yellow Scorpion-Weed Phacelia Entire-Leaf Rosewort Rhodiola integrifolia FACU Fendler's Waterleaf Hydrophyllum fendleri FAC tetramera FAC Entire-Leaf Thelypody Thelypodium integrifolium FACW Fern Pondweed Potamogeton robbinsii OBL Four-Spike Heliotrope Heliotropium procumbens FACW Erect Knotweed Polygonum erectum FACU Ferris' Goldfields Lasthenia ferrisiae OBL Fowl Blue Grass Poa palustris FAC Erect Pygmy-Cudweed Hesperevax sparsiflora FACU Few-Flower Beggarticks Bidens leptocephala FAC Fowl Manna Grass Glyceria striata OBL Erect Seaberry Haloragis erecta FAC Few-Flower Jacob's-Ladder Polemonium pauciflorum FACW Fowler's Knotweed Polygonum fowleri FACW Erect Spiderling Boerhavia erecta FACU Few-Flower Meadow-Rue Thalictrum sparsiflorum FAC Fox Grape Vitis labrusca FACU Eurasian Water-Milfoil Myriophyllum spicatum OBL Few-Flower Sedge Carex pauciflora OBL Fox-Tail Barley Hordeum jubatum FAC European Alder Alnus glutinosa FACW Few-Flower Spike-Rush Eleocharis quinqueflora OBL Fox-Tail Muhly Muhlenbergia andina FAC European Barberry Berberis vulgaris FACU Fiddle Dock Rumex pulcher FAC Fox-Tail Prairie-Clover Dalea leporina UPL European Beach Grass Ammophila arenaria FACU Fiddle-Leaf Hawk's-Beard Crepis runcinata FACU Fox-Tail Prickle Grass Crypsis alopecuroides OBL European Black Nightshade Solanum nigrum FACU Fiddle-Leaf Tobacco Nicotiana repanda FAC Fragile Pygmy Daisy Pentachaeta fragilis FAC European Buckthorn Rhamnus cathartica FAC Field Brome Bromus arvensis FACU Fragile Rockbrake Cryptogramma stelleri FACU European Burr-Reed Sparganium emersum OBL Field Horsetail Equisetum arvense FAC Fragile-Sheath Sedge Carex fracta FAC European Centaury Centaurium erythraea FAC Field Meadow-Foxtail Alopecurus pratensis FACW Fragrant Bedstraw Galium triflorum FACU European Privet Ligustrum vulgare UPL Field Mouse-Ear Chickweed Cerastium arvense FACU Fragrant Fringecup Tellima grandiflora FACU European Searocket Cakile maritima FAC Field Pansy Viola bicolor FAC Fragrant Heliotrope Heliotropium greggii FAC European Sickle Grass Parapholis strigosa OBL Field Pennycress Thlaspi arvense UPL Fragrant Indigo-Bush Amorpha nana FACU European Speedwell Veronica beccabunga OBL Field Pussytoes Antennaria neglecta FACU Fragrant Popcorn-Flower Plagiobothrys figuratus FACW European Weeping Birch Betula pendula FACU Field Sow-Thistle Sonchus arvensis FACU Fragrant Spike Sedge Kyllinga odorata FACW European White Water-Lily Nymphaea alba OBL Finger Rush Juncus digitatus OBL Fragrant Sumac Rhus aromatica FACU Evening Rain-Lily Cooperia chlorosolen FACU Fire Cherry Prunus pensylvanica FACU Franciscan Bluebells Mertensia franciscana OBL Evergreen Blueberry Vaccinium ovatum UPL Fire-on-the-Mountain Euphorbia cyathophora UPL Franciscan Thistle Cirsium andrewsii FAC Evergreen Buckthorn Rhamnus alaternus FACU Firewheel Gaillardia pulchella FACU Frank's Sedge Carex frankii OBL Evergreen Traveler's-Joy Clematis vitalba FAC Fitch's False Tarplant Centromadia fitchii FACU Freckled Milk-Vetch Astragalus lentiginosus UPL Eyebane Euphorbia nutans FACU Five-Finger Chicken-Sage Artemisia potentilloides FAC Fremont's Goldfields Lasthenia fremontii OBL FAC Tolmiea diplomenziesii Soltis & Five-Horn Smotherweed Bassia hyssopifolia FACU Fremont's Goosefoot Chenopodium fremontii FACU P.S. Soltis Five-Petal Cliffbush Jamesia americana FACU French Tamarisk Tamarix gallica FAC FACW Platanthera X folsomii nom. Five-Stamen Tamarisk Tamarix chinensis FAC Freshwater Cord Grass Spartina pectinata OBL invalid. Flaming Mountain-Trumpet Collomia rawsoniana FACU Fringed Brome Bromus ciliatus FAC FACW Platanthera X kelleyi nom. Flat-Face Calico-Flower Downingia pulchella OBL Fringed Centipede Grass Eremochloa ciliaris FACU invalid. Flat-Leaf Bladderwort Utricularia intermedia OBL Fringed False Hellebore Veratrum fimbriatum FACW Fairy-Slipper Orchid Calypso bulbosa FAC Flat-Stalk Pondweed Potamogeton friesii OBL Fringed Grass-of-Parnassus Parnassia fimbriata OBL Falkland Island Sedge Carex macloviana FACW Flat-Stem Blue Grass Poa compressa FACU Fringed Redmaids Calandrinia ciliata FACU Fall Buttercup Ranunculus aestivalis FACW Flat-Stem Pondweed Potamogeton zosteriformis OBL Fringed Twinevine Funastrum cynanchoides FACU Fall Knotweed Polygonum spergulariiforme FACU Flat-Stem Spike-Rush Eleocharis compressa FACW Fringed Willowherb Epilobium ciliatum FACW Fringed Yellow-Loosestrife Lysimachia ciliata FACW Golden-Tongue Owl-Clover Orthocarpus luteus FACU Green-Eye Heliotrope Heliotropium glabriusculum FACW Fringed-Water-Plantain Damasonium californicum OBL Golden-Top Grass Lamarckia aurea FACU Green-Flower Wintergreen Pyrola chlorantha FAC Fringe-Leaf Cinquefoil Potentilla flabellifolia FACW Gold-of-Pleasure Camelina sativa FACU Green-Fruit Sedge Carex interrupta OBL Fringe-Leaf Lobelia Lobelia fenestralis FACU Goodding's Black Willow Salix gooddingii FACW Green-Head Coneflower Rudbeckia laciniata FAC Frog-Bit Buttercup Ranunculus hydrocharoides OBL Goodrich Rockcress Boechera goodrichii FACU Green-Head Rush Juncus chlorocephalus FACW Fuller's Teasel Dipsacus fullonum FAC Goosetongue Plantago maritima FACW Greenland Primrose Primula egaliksensis OBL Funck's Hair Sedge Bulbostylis funckii FACW Gopher-Tail Love Grass Eragrostis ciliaris FACU Green-Leaf Raillardella Raillardella scaposa FACU Funeral Mountain Blue-Eyed-Grass Gorman's Buttercup Ranunculus gormanii FACW Green-Leaf Rattlesnake-Plantain Sisyrinchium funereum FACW Graceful Buttercup Ranunculus inamoenus FACW Goodyera oblongifolia FACU Fuzzy Sagebrush Artemisia papposa FACU Graceful Cinquefoil Potentilla gracilis FAC Green-Molly Neokochia americana FAC Fuzzy Sedge Carex hirtissima OBL Graceful Sandmat Euphorbia hypericifolia FACU Green-Sheath Sedge Carex feta FACW Galingale Cyperus fuscus FAC Grand Fir Abies grandis FACU Green-Spot Nightshade Solanum douglasii FAC Gallant-Soldier Galinsoga parviflora UPL Grand Redstem Ammannia robusta OBL Greenstripe Amaranthus acanthochiton FACU Gambel's Watercress Nasturtium gambelii OBL Grants Pass Willowherb Epilobium oreganum OBL Griffiths' Saltbush Atriplex griffithsii FACU Gaping Grass Steinchisma hians FACW Grass Vetchling Lathyrus sphaericus FACU Groundivy Glechoma hederacea FACU Garden Bird's-Foot-Trefoil Lotus corniculatus FAC Grassland Sedge Carex divulsa FAC Grouseberry Vaccinium scoparium FACU Garden Cornflower Centaurea cyanus FACU Grass-Leaf Lettuce Lactuca graminifolia FAC Guadalupe Mountain Sedge Carex mckittrickensis FACW Garden Cosmos Cosmos bipinnatus FACW Grass-Leaf Mud-Plantain Heteranthera dubia OBL Guadalupe Valerian Valeriana texana OBL Garden Orache Atriplex hortensis FAC Grass-Leaf Speedwell Veronica scutellata OBL Guadalupe Waternymph Najas guadalupensis OBL Garden Smartweed Persicaria wallichii FAC Grass-Leaf Starwort Stellaria graminea FAC Guadeloupe-Cucumber Melothria pendula FAC Garden Sorrel Rumex acetosa FAC Grasswidow Olsynium douglasii FACU Guava Psidium guajava UPL Garden Vetch Vicia sativa FACU Grassy Pondweed Potamogeton gramineus OBL Guinea Grass Megathyrsus maximus FAC Garden Yellow-Loosestrife Lysimachia vulgaris FACW Gravel-Bar Muhly Muhlenbergia eludens UPL Gulf Cock's-Spur Grass Echinochloa crus-pavonis FACW Garden Yellow-Rocket Barbarea vulgaris FAC Gray Mangrove Avicennia marina OBL Gum Bully Sideroxylon lanuginosum FACU Garden-Nasturtium Tropaeolum majus UPL Gray Willow Salix bebbiana FACW Gypsum Springbeauty Claytonia gypsophiloides FACU Garlic-Mustard Alliaria petiolata FACU Gray-Leaf Sierran Willow Salix orestera FACW Gypsy-Flower Cynoglossum officinale FACU Germander Speedwell Veronica chamaedrys FACU Gray-Leaf Skullcap Scutellaria siphocampyloides FACU Hairless Popcorn-Flower Plagiobothrys glaber OBL German-Madwort Asperugo procumbens UPL Gray-Leaf Willow Salix glauca FACW Hair-Like Sedge Carex capillaris FACW Geyer's Onion Allium geyeri FACU Gray's Clover Trifolium grayi FACW Hairy Beggarticks Bidens pilosa FAC Geyer's Willow Salix geyeriana OBL Greasewood Sarcobatus vermiculatus FACU Hairy Big-Leaf Lupine Lupinus prunophilus FACU Giant Angelica Angelica ampla FACW Great Basin Calico-Flower Downingia laeta OBL Hairy Bittercress Cardamine hirsuta FACU Giant Blue Iris Iris giganticaerulea OBL Great Basin Lyme Grass Leymus cinereus FAC Hairy Buttercup Ranunculus sardous FACW Giant Bristle Grass Setaria magna FACW Great Burnet Sanguisorba officinalis FACW Hairy Cat's-Ear Hypochaeris radicata FACU Giant Chain Fern Woodwardia fimbriata FACW Great Mullein Verbascum thapsus FACU Hairy Checkerbloom Sidalcea hirsuta OBL Giant Dropseed Sporobolus giganteus FACU Great Plains False Willow Baccharis salicina FACW Hairy Cornsalad Valerianella amarella FACU Giant Helleborine Epipactis gigantea OBL Great Plains Flat Sedge Cyperus lupulinus FACU Hairy Crab Grass Digitaria sanguinalis FACU Giant Horsetail Equisetum telmateia FACW Great Plains Groundsel Packera tampicana FACW Hairy Crabweed Fatoua villosa FAC Giant Lousewort Pedicularis procera FACU Great Plains Ladies'-Tresses Spiranthes magnicamporum FAC Hairy Eared Rockcress Arabis pycnocarpa FACU Giant Lyme Grass Leymus condensatus FACU Great Plantain Plantago major FAC Hairy Evening-Primrose Oenothera villosa FAC Giant Taro Alocasia macrorrhizos FACW Great Purple Monkey-Flower Mimulus lewisii FACW Hairy Fimbry Fimbristylis puberula FACW Giant White Trillium Trillium albidum FACU Great Ragweed Ambrosia trifida FAC Hairy Gumweed Grindelia hirsutula FACW Giant-Knotweed Reynoutria sachalinensis FACU Great Red Indian-Paintbrush Castilleja miniata FACW Hairy Hedge-Nettle Stachys pilosa FACW Giant-Reed Arundo donax FACW Great Valley Eryngo Eryngium castrense OBL Hairy Indian-Paintbrush Castilleja tenuis FAC Gila River Water-Hyssop Bacopa eisenii OBL Great Valley Gumweed Grindelia camporum FACW Hairy Orcutt Grass Orcuttia pilosa OBL Glacier Fleabane Erigeron glacialis FAC Greater Bladderwort Utricularia macrorhiza OBL Hairy Smotherweed Bassia hirsuta OBL Glandular Willowherb Epilobium hallianum FACW Greater Canadian St. John's-Wort Hairy Umbrella Sedge Fuirena squarrosa OBL Glassy Onion Allium hyalinum FACU Hypericum majus FACW Hairy Water-Clover Marsilea vestita OBL Glaucous Willowherb Epilobium glaberrimum FACW Greater Celandine Chelidonium majus FACU Hairy Wild Rye Elymus villosus FACU Globe Beak Sedge Rhynchospora globularis OBL Greater Creeping Spearwort Ranunculus flammula OBL Hairy Woodland Brome Bromus pubescens FACU Globe Beardtongue Penstemon globosus FAC Greater Flowering-Rush Butomus umbellatus OBL Hairy-Fruit Chervil Chaerophyllum tainturieri FAC Globe-Pod Pepperwort Lepidium appelianum UPL Greater Four-Point Evening-Primrose Hairy-Fruit Smooth Dewberry Rubus lasiococcus FACU Glossy False Buckthorn Frangula alnus FAC Oenothera rhombipetala FACU Hairy-Leaf Rush Juncus supiniformis OBL Gmelin's Saltbush Atriplex gmelinii FACW Greater Water Dock Rumex britannica OBL Hairy-Seed Crown Grass Paspalum pubiflorum FACW Goat Willow Salix caprea FACW Greater Water-Starwort Callitriche heterophylla OBL Hairy-Stem Dwarf Rush Juncus capillaris FACW Golden Blue-Eyed-Grass Sisyrinchium californicum FACW Greater Yellow Water Buttercup Halberd-Leaf Orache Atriplex patula FACW Golden Columbine Aquilegia chrysantha FAC Ranunculus flabellaris OBL Halberd-Leaf Tearthumb Persicaria arifolia OBL Golden Crown Grass Paspalum dilatatum FAC Green Arrow-Arum Peltandra virginica OBL Hall's Panic Grass Panicum hallii UPL Golden Crownbeard Verbesina encelioides FACU Green Ash Fraxinus pennsylvanica FACW Hall's Rush Juncus hallii FAC Golden Currant Ribes aureum FAC Green Bluebells Mertensia viridis FACU Hapeman's Coolwort Sullivantia hapemanii FACW Golden Saxifrage Saxifraga chrysantha FACU Green Carpetweed Mollugo verticillata FACU Hard Fescue Festuca trachyphylla UPL Golden Tickseed Coreopsis tinctoria FACU Green False Deathcamas Anticlea virescens FACU Harding Grass Phalaris aquatica FACU Golden Whitlow-Grass Draba aurea FACU Green Flat Sedge Cyperus virens FACW Hard-Leaf Flat-Top-Goldenrod Solidago rigida FACU Golden-Fruit Sedge Carex aurea OBL Green Muhly Muhlenbergia racemosa FACW Hard-Stem Club-Rush Schoenoplectus acutus OBL Golden-Hardhack Dasiphora fruticosa FAC Greene's Popcorn-Flower Plagiobothrys greenei FACW Hardy Fuchsia Fuchsia magellanica FACU Harford's Sedge Carex harfordii OBL Hood's Sedge Carex hoodii FAC Island-Purslane Koenigia islandica OBL Harlequin Calico-Flower Downingia insignis OBL Hooker's Evening-Primrose Oenothera elata FACW Italian Bristle Grass Setaria italica FACU Harlequin Deer-Vetch Hosackia gracilis FACW Hook-Spur Violet Viola adunca FAC Itch Grass Rottboellia cochinchinensis FAC Harsh Popcorn-Flower Plagiobothrys hispidulus FACW Hoover's Calico-Flower Downingia bella OBL Ivy-Leaf Duckweed Lemna trisulca OBL Hart's Groundsel Packera hartiana FACW Hoover's Sandmat Euphorbia hooveri OBL Ivy-Leaf Morning-Glory Ipomoea hederacea FACU Harvest Cluster-Lily Brodiaea coronaria FAC Horned Bladderwort Utricularia cornuta OBL Japanese Barberry Berberis thunbergii FACU Harvestlice Agrimonia parviflora FAC Horned Dandelion Taraxacum ceratophorum UPL Japanese Bristle Grass Setaria faberi UPL Hasse's Sedge Carex hassei FACW Horned-Pondweed Zannichellia palustris OBL Japanese Honeysuckle Lonicera japonica FACU Hastate Orache Atriplex prostrata FACW Hornemann's Willowherb Epilobium hornemannii FACW Japanese Mazus Mazus pumilus FACU Hayden's Clover Trifolium haydenii FACU Horn's Milk-Vetch Astragalus hornii FAC Japanese Privet Ligustrum japonicum FACU Hayden's Sedge Carex haydeniana FAC Horsefly's-Eye Dopatrium junceum OBL Japanese Water Grass Echinochloa esculenta FACU Heart-Leaf Alexanders Zizia aptera FAC Horsetail Milkweed Asclepias subverticillata FACU Japanese-Clover Kummerowia striata FACU Heart-Leaf Buttercup Ranunculus cardiophyllus FACW Hot Springs Fimbry Fimbristylis thermalis OBL Japanese-Knotweed Reynoutria japonica FACU Heart-Leaf Four-O'clock Mirabilis nyctaginea FACU Howell's Alkali Grass Puccinellia howellii OBL Japanese-Millet Echinochloa frumentacea UPL Heart-Leaf Iceplant Mesembryanthemum cordifolium Howell's Candy-Flower Montia howellii FACW Jepson's Eryngo Eryngium jepsonii OBL FAC Howell's Pseudosaxifrage Micranthes howellii FAC Jepson's Pincushion-Plant Navarretia jepsonii FACW Heart-Leaf Peppervine Ampelopsis cordata FAC Howell's Quillwort Isoetes howellii OBL Jepson's Willow Salix jepsonii OBL Heart-Leaf Pseudosaxifrage Micranthes nelsoniana FAC Howell's Yampah Perideridia howellii FACW Jersey Rabbit-Tobacco Pseudognaphalium luteoalbum FAC Heart-Leaf Springbeauty Claytonia cordifolia FAC Huachuca Mountain Eryngo Eryngium phyteumae OBL Jerusalem-Artichoke Helianthus tuberosus FACU Heart-Leaf Twayblade Neottia cordata FACW Humped Bladderwort Utricularia gibba OBL Jerusalem-Oak Dysphania botrys FACU Heartscale Atriplex cordulata FAC Hungerweed Ranunculus arvensis FACU Jio Commelina benghalensis FACU Heart-Shape False Pickerelweed Hupa Valley Pseudosaxifrage Micranthes marshallii OBL Job's-Tears Coix lacryma-jobi FACW Monochoria vaginalis OBL Husk-Tomato Physalis pubescens FACU John Day Valley Woodbeauty Drymocallis campanulata FAC Heart-Wing Sorrel Rumex hastatulus FAC Hyssop Loosestrife Lythrum hyssopifolium OBL Johnnynip Castilleja ambigua FACW Heavenly-Blue Morning-Glory Ipomoea violacea FAC Hyssop-Leaf Bugseed Corispermum hyssopifolium FACU Johnson Grass Sorghum halepense FACU Heavy Sedge Carex gravida FACW Hyssop-Leaf Sandmat Euphorbia hyssopifolia FACU Jointed Crown Grass Paspalum distichum FACW Hedge False Bindweed Calystegia sepium FAC Ice Grass Phippsia algida OBL Joint-Leaf Rush Juncus articulatus OBL Hedgeflower Lantana camara FACU Idaho Bent Agrostis idahoensis FACW Jones' Beeplant Peritoma jonesii FACU Helleborine Epipactis helleborine FACU Idaho Blue-Eyed-Grass Sisyrinchium idahoense FACW Jones' Sedge Carex jonesii FACW Heller's Rosette Grass Dichanthelium oligosanthes FACU Idaho Gumweed Grindelia nana FACW Jones' Selenia Selenia jonesii FACW Heller's Whitlow-Grass Draba helleriana FAC Idaho Sedge Carex idahoa FACW Jonesville Springbeauty Claytonia palustris FACW Hemlock Water-Parsnip Sium suave OBL Idaho Wild Lovage Ligusticum verticillatum FACW Juba's-Bush Iresine diffusa FAC Henderson's Bent Agrostis hendersonii FACW Idaho Willow Salix wolfii OBL Jungle-Rice Echinochloa colona FAC Henderson's Sedge Carex hendersonii FAC Idaho Woodbeauty Drymocallis glabrata FAC Juniper-Leaf Polypremum procumbens FACU Herb-of-Grace Bacopa monnieri OBL Illinois Pondweed Potamogeton illinoensis OBL Kachina Fleabane Erigeron kachinensis OBL Herb-of-the-Cross Verbena officinalis FACU Inch-High Rush Juncus uncialis OBL Kaibab Plateau Beardtongue Penstemon pseudoputus FACU Herman's Dwarf Rush Juncus hemiendytus OBL Indian Goose Grass Eleusine indica UPL Kariba-Weed Salvinia molesta OBL Hermaphrodite Flat Sedge Cyperus hermaphroditus FAC Indian Jujube Ziziphus mauritiana UPL Keeled Lateral-Bulrush Isolepis carinata OBL Hickman's Cinquefoil Potentilla hickmanii FACW Indian Love Grass Eragrostis pilosa FACU Kelley's Lily Lilium kelleyanum OBL Hickman's Onion Allium hickmanii FACU Indian Rice Grass Achnatherum hymenoides UPL Kellogg's Dwarf Rush Juncus kelloggii FACW Hierba-Del-Sapo Eryngium nasturtiifolium FACW Indian Sweet-Clover Melilotus indicus FACU Kellogg's Knotweed Polygonum kelloggii FACW Highbush-Cranberry Viburnum opulus FACW Indian Tobacco Nicotiana quadrivalvis FACU Kellogg's Sedge Carex kelloggii OBL Hill Rabbit's-Foot Grass Polypogon fugax FACU Indian Toothcup Rotala indica OBL Kennedy's Tropical Bent Bromidium tandilense OBL Hillman's Panic Grass Panicum hillmanii FACU Indian Valley Cluster-Lily Brodiaea rosea FAC Kentucky Blue Grass Poa pratensis FAC Hillman's Silverscale Atriplex hillmanii FACU Indian Valley Sedge Carex aboriginum OBL Kentucky Rush Juncus anthelatus FACW Hillside Buttercup Ranunculus jovis FAC Indian Wood-Oats Chasmanthium latifolium FAC Kerner's Dock Rumex kerneri FACW Himalayan Blackberry Rubus armeniacus FAC Indian-Consumption-Plant Lomatium nudicaule UPL Kidney-Leaf Buttercup Ranunculus abortivus FACW Hoar False Tansy-Aster Dieteria canescens UPL Indian-Hemp Apocynum cannabinum FAC Kidney-Leaf Mud-Plantain Heteranthera reniformis OBL Hoary Bowlesia Bowlesia incana FACU Indian-Rhubarb Darmera peltata OBL Kidney-Leaf White Violet Viola renifolia FACW Hoary Pincushion-Plant Navarretia eriocephala FAC Indian-Strawberry Potentilla indica UPL Kikuyu Grass Cenchrus clandestinus FACU Hoary Sedge Carex canescens OBL Inflated Duckweed Lemna gibba OBL King Solomon's-Seal Polygonatum biflorum FACU Holly-Leaf Oregon-Grape Mahonia aquifolium UPL Inflated-Scale Flat Sedge Cyperus aggregatus FAC King's Clover Trifolium kingii FAC Holly-Leaf Waternymph Najas marina OBL Inland Blue Grass Poa interior FAC King's Lupine Lupinus kingii UPL Holm's Rocky Mountain Sedge Carex scopulorum FACW Inland Rush Juncus interior FAC King's Mousetail Ivesia kingii FAC Honey Mesquite Prosopis glandulosa FACU Inland Sedge Carex interior OBL King's-Cureall Oenothera biennis FACU Honey-Locust Gleditsia triacanthos FAC Innocent-Weed Cenchrus longispinus UPL King's-Scepter Gentian Gentiana sceptrum OBL Honey-Scented Pincushion-Plant Intermountain Bog Orchid Platanthera tescamnis OBL Kiss-Me-Over-the-Garden-Gate Persicaria orientalis FACW Navarretia mellita FAC Interrupted Club-Moss Spinulum annotinum FAC Kiss-Me-Quick Portulaca pilosa FACU Honeyvine Cynanchum laeve FAC Inyo Mariposa-Lily Calochortus excavatus FACU Kittitas Larkspur Delphinium multiplex FAC Hooded Arrowhead Sagittaria calycina OBL Inyo Yellow Scorpion-Weed Phacelia inyoensis FAC Klamath Coneflower Rudbeckia klamathensis FACW Hooded Blue Violet Viola sororia FAC Iodinebush Allenrolfea occidentalis FACW Klamath Sedge Carex klamathensis OBL Hooded Coralroot Corallorhiza striata FACU Iris-Leaf Rush Juncus xiphioides OBL Kneeling Angelica Angelica genuflexa FACW Hooded Ladies'-Tresses Spiranthes romanzoffiana FACW Island American-Aster Symphyotrichum bahamense OBL Knotted Rush Juncus nodosus OBL Hooded Skullcap Scutellaria galericulata OBL Island Bush-Monkey-Flower Diplacus parviflorus FACU Knotty-Leaf Rush Juncus acuminatus OBL Knowlton's Hop-Hornbeam Ostrya knowltonii FAC Least Moonwort Botrychium simplex FAC Little-Pod False Flax Camelina microcarpa FACU Korean-Clover Kummerowia stipulacea FACU Least Muhly Muhlenbergia minutissima FAC Little-Tooth Sedge Carex microdonta FAC Kotzebue's Grass-of-Parnassus Leathery Grape Fern Sceptridium multifidum FAC Live Oak Quercus virginiana FACU Parnassia kotzebuei OBL Leathery Knotweed Polygonum achoreum FACU Livid Sedge Carex livida OBL Krauss' Spike-Moss Selaginella kraussiana FACW Leiberg's Blue Grass Poa leibergii FACU Lobb's Water-Crowfoot Ranunculus lobbii OBL Kudzu Pueraria montana UPL Leiberg's Umbrella-Wort Tauschia tenuissima FACW Loch Lomond Eryngo Eryngium constancei OBL Kunth's Evening-Primrose Oenothera kunthiana FACU Lemmon's Alkali Grass Puccinellia lemmonii FACW Lodgepole Pine Pinus contorta FAC La Plata Sandspurry Spergularia platensis OBL Lemmon's Canary Grass Phalaris lemmonii FACW Long-Anther Rush Juncus macrandrus OBL Labrador Indian-Paintbrush Castilleja septentrionalis FACU Lemmon's Indian-Paintbrush Castilleja lemmonii FACW Long-Awn Cock's-Spur Grass Echinochloa walteri OBL Lacy Sleepy Daisy Xanthisma spinulosum UPL Lemmon's Milk-Vetch Astragalus lemmonii FACW Long-Barb Arrowhead Sagittaria longiloba OBL Ladder Brake Pteris vittata FAC Lemmon's Scorpion-Weed Phacelia lemmonii FACU Long-Beak Sedge Carex sprengelii FAC Lake County Mock Stonecrop Sedella leiocarpa FAC Lemmon's Sedge Carex lemmonii OBL Long-Beak Stork's-Bill Erodium botrys FACU Lake Huron Green Orchid Platanthera huronensis OBL Lemmon's Wild Ginger Asarum lemmonii OBL Long-Beak Water-Crowfoot Ranunculus longirostris OBL Lake Tahoe Yellowcress Rorippa subumbellata OBL Lemmon's Willow Salix lemmonii FACW Long-Beard Mariposa-Lily Calochortus longebarbatus FAC Lake Willow Dock Rumex lacustris OBL Lemon Lily Lilium parryi OBL Long-Bract Frog Orchid Coeloglossum viride FAC Lakeshore Sedge Carex lenticularis OBL Lemonbalm Melissa officinalis UPL Long-Flower Catclaw Senegalia greggii FACU Lamarck's Bedstraw Galium divaricatum FACU Lemon-Scented Ghost-Gum Corymbia citriodora FACU Long-Horn False Rein Orchid Habenaria quinqueseta FACW Lamb's-Quarters Chenopodium album FACU Leoncita False Foxglove Agalinis calycina OBL Long-Leaf Pondweed Potamogeton nodosus OBL Lamb-Tongue Ragwort Senecio integerrimus FACU Leopard Lily Lilium pardalinum FACW Long-Leaf Rush Juncus macrophyllus FACW Lamp Rush Juncus effusus FACW Lesser Black-Scale Sedge Carex atrosquama FACU Long-Leaf Starwort Stellaria longifolia FACW Lance-Leaf Figwort Scrophularia lanceolata FAC Lesser Bladder Sedge Carex vesicaria OBL Long-Ray Triplet-Lily Triteleia peduncularis FACW Lance-Leaf Gayfeather Liatris lancifolia FAC Lesser Bladderwort Utricularia minor OBL Long's Sedge Carex longii FACW Lance-Leaf Goldenweed Pyrrocoma lanceolata FAC Lesser Burrdock Arctium minus FACU Long-Spur Columbine Aquilegia longissima FACW Lance-Leaf Leopardbane Arnica lanceolata FACW Lesser Duckweed Lemna aequinoctialis OBL Long-Spur Seablush Plectritis ciliosa FACU Lance-Leaf Moonwort Botrychium lanceolatum FACW Lesser Hawkbit Leontodon saxatilis FACU Long-Stalk Clover Trifolium longipes FACW Lance-Leaf Springbeauty Claytonia lanceolata FAC Lesser Herbrobert Geranium robertianum FACU Long-Stalk Starwort Stellaria longipes FACW Lance-Leaf Tickseed Coreopsis lanceolata FACU Lesser Poverty Rush Juncus tenuis FACW Long-Stem Evening-Primrose Oenothera longissima OBL Lance-Leaf Twistedstalk Streptopus lanceolatus FAC Lesser Quaking Grass Briza minor FAC Long-Stock Water-Starwort Callitriche longipedunculata OBL Lance-Leaf Water-Plantain Alisma lanceolatum OBL Lesser Round-Leaf Orchid Platanthera orbiculata FAC Long-Style Rush Juncus longistylis FACW Lance-Pod Whitlow-Grass Draba lonchocarpa FACU Lesser Saltbush Atriplex minuscula FACU Long-Tail Wild Ginger Asarum caudatum FAC Languid-Lady Mertensia oblongifolia FAC Lesser Tussock Sedge Carex diandra OBL Long-Tube Evening-Primrose Oenothera flava FAC Lapland Sorrel Rumex lapponicus FAC Lesser Yellow Water Buttercup Ranunculus gmelinii FACW Loquat Eriobotrya japonica UPL Large Barnyard Grass Echinochloa crus-galli FACW Licorice Bedstraw Galium circaezans FACU Lost Hills Saltbush Atriplex vallicola FACW Large Bird's-Foot-Trefoil Lotus uliginosus FACU Liddon Sedge Carex petasata FAC Lotus Sweetjuice Glinus lotoides OBL Large Camas Camassia leichtlinii FACW Lilac Beardtongue Penstemon gracilis UPL Louisiana Lettuce Lactuca ludoviciana FAC Large Cranberry Vaccinium macrocarpon OBL Lilac Tassel-Flower Emilia sonchifolia UPL Louisiana Vetch Vicia ludoviciana UPL Large Leather-Root Hoita macrostachya OBL Limeberry Triphasia trifolia FACU Love-in-a-Puff Cardiospermum halicacabum FAC Large Mosquito Fern Azolla filiculoides OBL Limestone Adder's-Tongue Ophioglossum engelmannii FACW Low Goosefoot Chenopodium chenopodioides FACW Large Mountain Bittercress Cardamine cordifolia FACW Limestone Bugheal Trichocoronis wrightii FACW Low Lateral-Bulrush Isolepis cernua OBL Large Mountain Fleabane Erigeron coulteri FACW Limestone Wild Basil Clinopodium arkansanum FAC Low Milkweed Asclepias pumila UPL Large Sweet Vernal Grass Anthoxanthum odoratum FAC Limewater Brookweed Samolus ebracteatus FACW Low Northern Sedge Carex concinna FAC Large Yellow-Loosestrife Lysimachia punctata OBL Limpo Grass Hemarthria altissima FACW Low Spearwort Ranunculus pusillus OBL Large-Flower Primrose-Willow Ludwigia grandiflora OBL Lindheimer's Indigo Indigofera lindheimeriana FAC Lowland Toothcup Rotala ramosior OBL Large-Flower Wild Hollyhock Iliamna grandiflora FACW Lindheimer's Morning-Glory Ipomoea lindheimeri UPL Lowland Yellow-Loosestrife Lysimachia hybrida OBL Large-Flower Willowherb Epilobium pallidum FAC Linear-Leaf Candy-Flower Montia linearis FAC Luckynut Thevetia peruviana UPL Large-Head Clover Trifolium macrocephalum FACU Little Aguja Pondweed Potamogeton berchtoldii OBL Lyall's Angelica Angelica arguta FACW Large-Leaf Avens Geum macrophyllum FACW Little Aguja Pondweed Potamogeton clystocarpus OBL Lyall's Beardtongue Penstemon lyallii FACU Large-Leaf Grove-Sandwort Moehringia macrophylla FAC Little Barley Hordeum pusillum FACU Lyngbye's Sedge Carex lyngbyei OBL Large-Leaf Pondweed Potamogeton amplifolius OBL Little Duckweed Lemna obscura OBL Lyre-Leaf Thalecress Arabidopsis lyrata FACU Large-Seed Bittercress Cardamine macrocarpa FAC Little Elephant's-Head Pedicularis attollens OBL Mackenzie's Willow Salix prolixa OBL Large-Seed Goosefoot Chenopodium macrospermum FACW Little False Bluestem Schizachyrium scoparium FACU Macoun's Buttercup Ranunculus macounii OBL Late Goldenrod Solidago gigantea FACW Little Green Sedge Carex viridula OBL Mad Dog Skullcap Scutellaria lateriflora FACW Latin American Fleabane Erigeron karvinskianus FAC Little Purple Monkey-Flower Mimulus purpureus FACU Madagascar-Periwinkle Catharanthus roseus UPL Lawn American-Aster Symphyotrichum divaricatum OBL Little Red-Stem Monkey-Flower Mimulus rubellus FAC Madrean Ladies'-Tresses Spiranthes delitescens OBL Lawn Burrweed Soliva sessilis FACU Little Walnut Juglans microcarpa FAC Madwort False Flax Camelina alyssum FACU Lawn Marsh-Pennywort Hydrocotyle sibthorpioides FACW Little Western Bittercress Cardamine oligosperma FAC Mahogany Fawn-Lily Erythronium revolutum FAC Leafy American-Aster Symphyotrichum frondosum FACW Little Yellow-Rattle Rhinanthus minor FACU Maiden Pink Dianthus deltoides FAC Leafy Goosefoot Chenopodium foliosum FACU Littlebell Ipomoea triloba FACU Maidenhair Spleenwort Asplenium trichomanes FAC Leafy Leopardbane Arnica chamissonis FACW Little-Head Spike-Rush Eleocharis parvula OBL Manila Temple Grass Zoysia matrella FACU Leafy Pondweed Potamogeton foliosus OBL Little-Hogweed Portulaca oleracea FAC Many-Flower Marsh-Pennywort Hydrocotyle umbellata OBL Leafy Tussock Sedge Carex aquatilis OBL Little-Leaf Candy-Flower Montia parvifolia FACW Many-Flower Stickseed Hackelia floribunda FACU Leafy-Bract American-Aster Symphyotrichum subspicatum FACW Little-Leaf False Tamarind Lysiloma watsonii FACU Many-Fruit Primrose-Willow Ludwigia polycarpa OBL Leafy-Bract Dwarf Rush Juncus capitatus FACU Little-Leaf Sedge Carex luzulifolia FACW Many-Fruit Sedge Carex angustata FACW Least Duckweed Lemna minuta OBL Little-Petal Woodbeauty Drymocallis micropetala FAC Many-Head Sedge Carex sychnocephala FACW Many-Stem Springbeauty Claytonia multiscapa FAC Mertens' Rush Juncus mertensianus OBL Mountain False Deathcamas Anticlea elegans FACU Maple-Leaf Currant Ribes acerifolium FACU Mertens' Sedge Carex mertensii FAC Mountain Hare Sedge Carex phaeocephala FACU Marigold Pincushion-Plant Navarretia tagetina FACW Mesa Dropseed Sporobolus flexuosus FACU Mountain Hemlock Tsuga mertensiana FACU Marin Knotweed Polygonum marinense OBL Mexican Bedstraw Galium mexicanum FAC Mountain Lady's-Slipper Cypripedium montanum FACU Mariposa Rush Juncus dubius FACW Mexican Brassbuttons Cotula mexicana UPL Mountain Locoweed Oxytropis oreophila FACU Mariposa Sedge Carex mariposana FACW Mexican Dock Rumex mexicanus FAC Mountain Mare's-Tail Hippuris montana FACW Maritime Rabbit's-Foot Grass Polypogon maritimus OBL Mexican Giant Horsetail Equisetum myriochaetum OBL Mountain Meadowfoam Limnanthes montana OBL Maroon-Spot Calico-Flower Downingia concolor OBL Mexican Ground-Cherry Physalis philadelphica UPL Mountain Muhly Muhlenbergia montana UPL Marsh Arrow-Grass Triglochin palustris OBL Mexican Hedge-Nettle Stachys mexicana FACW Mountain Ninebark Physocarpus monogynus UPL Marsh Bellflower Campanula aparinoides OBL Mexican Love Grass Eragrostis mexicana FACU Mountain Pseudosaxifrage Micranthes occidentalis FAC Marsh Blue Grass Poa leptocoma FACW Mexican Mosquito Fern Azolla microphylla OBL Mountain Scorpion-Weed Phacelia orogenes FACU Marsh Bristle Grass Setaria parviflora FAC Mexican Muhly Muhlenbergia mexicana FAC Mountain Spike-Rush Eleocharis montana OBL Marsh Checkerbloom Sidalcea ranunculacea OBL Mexican Palo-Verde Parkinsonia aculeata FAC Mountain Sweet-Cicely Osmorhiza berteroi FACU Marsh Cudweed Gnaphalium uliginosum FAC Mexican Plantain Plantago australis FACW Mountain Tansy-Mustard Descurainia incana FACU Marsh Dock Rumex palustris FACW Mexican Primrose-Willow Ludwigia octovalvis OBL Mountain Tarplant Madia glomerata FACU Marsh Grass-of-Parnassus Parnassia palustris OBL Mexican Rush Juncus mexicanus FACW Mountain Timothy Phleum alpinum FAC Marsh Horsetail Equisetum palustre FACW Mexican Seepweed Suaeda mexicana FACW Mountain-Marsh Larkspur Delphinium polycladon FACW Marsh Jaumea Jaumea carnosa OBL Mexican Starwort Stellaria cuspidata FAC Mountain-Marsh Ragwort Senecio sphaerocephalus FACW Marsh Lousewort Pedicularis fluviatilis FAC Mexican-Devilweed Chloracantha spinosa FAC Mountain-Meadow Cinquefoil Potentilla glaucophylla FACU Marsh Meadow-Foxtail Alopecurus geniculatus OBL Mexican-Fireplant Euphorbia heterophylla UPL Mountain-Sorrel Oxyria digyna FACU Marsh Milk-Vetch Astragalus pycnostachyus OBL Mexican-Fireweed Bassia scoparia FAC Mourning Love Grass Eragrostis lugens FACU Marsh Phlox Phlox kelseyi FACW Mexican-Tea Dysphania ambrosioides FAC Mouse's-Ear Stachys crenata FAC Marsh Primrose-Willow Ludwigia palustris OBL Midget Quillwort Isoetes minima FACW Mrs. Austin's Knotweed Polygonum austiniae FACU Marsh Sandwort Arenaria paludicola OBL Mild Water-Pepper Persicaria hydropiper OBL Mt. Albert Goldenrod Solidago simplex FACU Marsh Valerian Valeriana dioica FACW Mile-a-Minute-Vine Ipomoea cairica FACU Mt. Graham Spurred-Gentian Halenia rothrockii FAC Marsh Vetchling Lathyrus palustris OBL Miner's Pepperwort Lepidium densiflorum UPL Mud Fiddleleaf Nama stenocarpum FACW Marsh Willowherb Epilobium palustre OBL Miner's-Lettuce Claytonia perfoliata FAC Mud Sedge Carex limosa OBL Marsh-Aster Almutaster pauciflorus FACW Miniature Monkey-Flower Mimulus suksdorfii FACU Mule's-Fat Baccharis salicifolia FAC Marsh-Felwort Lomatogonium rotatum OBL Miniature Pincushion-Plant Navarretia capillaris FAC Munz's Tidytips Layia munzii FACW Marsh-Meadow Indian-Paintbrush Castilleja Mission Grass Cenchrus polystachios FAC Muskflower Mimulus moschatus FACW lineata FACW Missouri Ironweed Vernonia missurica FACW Muskroot Adoxa moschatellina FAC Marsh-Parsley Cyclospermum leptophyllum FACU Missouri Violet Viola missouriensis FACW Mutis' Flat Sedge Cyperus mutisii FACU Marsh-Rosemary Limonium californicum FACW Mock Millerwort Mitellastra caulescens FAC Myers' Pincushion-Plant Navarretia myersii OBL Marvel-of-Peru Mirabilis jalapa UPL Mock Parsley Apiastrum angustifolium UPL Naked Broom-Rape Orobanche uniflora FACU Maryland Black-Snakeroot Sanicula marilandica FAC Modoc Eryngo Eryngium alismifolium FACW Naked Mariposa-Lily Calochortus nudus FAC Mason's Grasswort Lilaeopsis masonii OBL Modoc Yellowcress Rorippa tenerrima FAC Nanny-Berry Viburnum lentago FAC Mat Amaranth Amaranthus blitoides FACU Mogollon Indian-Paintbrush Castilleja mogollonica FACW Napa Blue Grass Poa napensis OBL Mathias' Eryngo Eryngium mathiasiae OBL Mojave Smokebush Psorothamnus arborescens FACU Narcissus-Flower Thimbleweed Anemone narcissiflora FAC Matted Fiddleleaf Nama torynophyllum FACW Mojave Thistle Cirsium mohavense FACU Nard Sedge Carex nardina FACU Matted Muhly Muhlenbergia richardsonis FAC Mono Sedge Carex tiogana FACW Narrow Beech Fern Phegopteris connectilis FACU Matted Sandmat Euphorbia serpens FACU Mono Wild Buckwheat Eriogonum ampullaceum FACU Narrow False Oat Trisetum spicatum FACU Matted Saxifrage Saxifraga austromontana FACU Montana Sedge Carex media FACW Narrow-Flower Blue Grass Poa stenantha FACU Maximilian Sunflower Helianthus maximiliani UPL Montane Coneflower Rudbeckia montana FACW Narrow-Leaf Bird's-Foot-Trefoil Lotus tenuis FACU May Grass Phalaris caroliniana FACW Montane Golden-Banner Thermopsis montana FAC Narrow-Leaf Burr-Reed Sparganium angustifolium OBL Mayacamas Popcorn-Flower Plagiobothrys lithocaryus FACW Monte Neva Indian-Paintbrush Castilleja salsuginosa FAC Narrow-Leaf Carpet Grass Axonopus fissifolius FAC Mccalla's Willow Salix maccalliana FACW Monterey Bush-Mallow Malacothamnus abbottii FACW Narrow-Leaf Cat-Tail Typha angustifolia OBL Meadow Baby-Blue-Eyes Nemophila pedunculata FAC Monterey Mariposa-Lily Calochortus uniflorus FACW Narrow-Leaf Cottonwood Populus angustifolia FACW Meadow Barley Hordeum brachyantherum FACW Monterey Mountain-Pink Zeltnera muehlenbergii FAC Narrow-Leaf Dock Rumex stenophyllus FACW Meadow Beardtongue Penstemon rydbergii FACU Morrow's Honeysuckle Lonicera morrowii UPL Narrow-Leaf Fireweed Chamaenerion angustifolium FACU Meadow Checkerbloom Sidalcea campestris FACU Mosquito Waterwort Elatine heterandra OBL Narrow-Leaf Goosefoot Chenopodium leptophyllum FACU Meadow Deer-Vetch Hosackia pinnata FACW Moss Dwarf Rush Juncus bryoides OBL Narrow-Leaf Milkweed Asclepias fascicularis FAC Meadow False Rye Grass Schedonorus pratensis FACU Moss Gentian Gentiana fremontii FACW Narrow-Leaf Mountain-Trumpet Collomia linearis FACU Meadow Milkvetch Astragalus diversifolius FAC Moss Grass Coleanthus subtilis OBL Narrow-Leaf Paleseed Leucospora multifida FACW Meadow Poison Camas Toxicoscordion venenosum FACU Moss Pygmyweed Crassula tillaea FACU Narrow-Leaf Water-Plantain Alisma gramineum OBL Meadow Popcorn-Flower Plagiobothrys scouleri FACW Mother-of-the-Evening Hesperis matronalis FACU Narrow-Leaf Willow Salix exigua FACW Meadow Pussytoes Antennaria arcuata FACW Moundlily Yucca Yucca gloriosa UPL Narrow-Panicle Rush Juncus brevicaudatus OBL Meadow Thistle Cirsium scariosum FAC Mountain American-Aster Symphyotrichum spathulatum FAC Narrow-Wing Water-Starwort Callitriche stenoptera OBL Meadow's Cotton-Grass Eriophorum crinigerum OBL Mountain Bladder Fern Cystopteris montana FAC Native Sedge Carex vernacula FAC Mead's Sedge Carex meadii OBL Mountain Blue-Eyed-Grass Sisyrinchium sarmentosum OBL Navajo Sedge Carex specuicola OBL Mealy False Acacia Vachellia farnesiana FACU Mountain Brickellbush Brickellia greenei FACU Nealley's Viper Grass Dinebra nealleyi FACW Mealy Turtleback Psathyrotes annua FACU Mountain Brookfoam Boykinia major FACW Nebraska Sedge Carex nebrascensis OBL Mediterranean Canary Grass Phalaris paradoxa FAC Mountain Buttercup Ranunculus populago OBL Neckweed Veronica peregrina FAC Mendocino Gentian Gentiana setigera OBL Mountain Carpet Clover Trifolium monanthum FAC Needle Spike-Rush Eleocharis acicularis OBL Mendocino Sedge Carex mendocinensis FACW Mountain Checkerbloom Sidalcea pedata OBL Needle Viper Grass Dinebra panicea FACW Needle-Leaf Burrobush Ambrosia monogyra UPL Northern Golden-Saxifrage Chrysosplenium tetrandrum OBL Oregon False Golden-Aster Heterotheca oregona FACU Needle-Leaf Pincushion-Plant Navarretia intertexta FACW Northern Green Rush Juncus alpinoarticulatus OBL Oregon False Semaphore Grass Needle-Leaf Seepweed Suaeda taxifolia FACW Northern Holly Fern Polystichum lonchitis FACU Pleuropogon oregonus OBL Needle-Pod Rush Juncus scirpoides FACW Northern Lady Fern Athyrium angustum FAC Oregon Goldthread Coptis laciniata FAC Nelson's Rice Grass Achnatherum nelsonii FACU Northern Meadow Sedge Carex praticola FACW Oregon Gooseberry Ribes lobbii FACU Nelson's Sedge Carex nelsonii FAC Northern Mule's-Ears Wyethia amplexicaulis FAC Oregon Gumweed Grindelia stricta FACW Nested Goldeneggs Taraxia breviflora FAC Northern Oak Fern Gymnocarpium dryopteris FAC Oregon Timwort Cicendia quadrangularis FAC Net-Leaf Hackberry Celtis reticulata FAC Northern Red Oak Quercus rubra FACU Oregon Violet Viola hallii FAC Netted Popcorn-Flower Plagiobothrys reticulatus FACW Northern Silverpuffs Microseris borealis OBL Oregon White Oak Quercus garryana UPL Nettle-Leaf Giant-Hyssop Agastache urticifolia FACU Northern Spike-Moss Selaginella selaginoides FACW Oregon Willowherb Epilobium oregonense OBL Nettle-Leaf Goosefoot Chenopodium murale FACU Northern St. John's-Wort Hypericum boreale OBL Oregon Woollyheads Psilocarphus oregonus OBL Net-Vein Willow Salix reticulata FAC Northern Sweet Vernal Grass Anthoxanthum hirtum FACW Oregon-Tea Clinopodium douglasii FACU Nevada Blue-Eyed-Grass Sisyrinchium halophilum FACW Northern Twayblade Neottia borealis FACW Organ Mountain Evening-Primrose Nevada Bulrush Scirpus nevadensis OBL Northern Water-Horehound Lycopus uniflorus OBL Oenothera organensis OBL Nevada Goldenrod Solidago spectabilis FACW Northern Watermeal Wolffia borealis OBL Oriental False Hawk's-Beard Youngia japonica FACU Nevada Rush Juncus tiehmii FACW Northern Water-Plantain Alisma triviale OBL Osage-Orange Maclura pomifera UPL Nevada Vetchling Lathyrus lanszwertii UPL Northern White Rush Juncus albescens OBL Oso-Berry Oemleria cerasiformis FACU New England American-Aster Symphyotrichum novae-angliae FACW Northern Wild Rice Zizania palustris OBL Oswego-Tea Monarda fistulosa FACU New Mexico Bare-Ray-Aster Psilactis asteroides FACW Northern Woodland Violet Viola septentrionalis FACU Otay Mesa-Mint Pogogyne nudiuscula OBL New Mexico Vervain Verbena macdougalii FACU Northwest Territory Sedge Carex utriculata OBL Oval Sedge Carex leporina FACW New Sedge Carex nova FAC Northwestern Showy Sedge Carex spectabilis FACW Oval-Leaf Blueberry Vaccinium ovalifolium UPL New York Ironweed Vernonia noveboracensis FAC Northwestern Twayblade Neottia banksiana FACU Ovalpurse Hornungia procumbens FAC Newberry's Cinquefoil Potentilla newberryi OBL Northwestern Yellow-Flax Sclerolinon digynum FACW Ovate Marsh Fern Thelypteris ovata FACW Ngaio-Tree Myoporum laetum FACU Norway Maple Acer platanoides UPL Owan's Flat Sedge Cyperus owanii FAC Night Flowering-Jassamine Cestrum nocturnum UPL Norwegian Cinquefoil Potentilla norvegica FAC Owens Valley Checkerbloom Sidalcea covillei FACU Nimblewill Muhlenbergia schreberi FACU Noyau-Vine Merremia dissecta FAC Owl's-Claws Hymenoxys hoopesii FAC Nit Grass Gastridium phleoides FACU Nuttall's Alkali Grass Puccinellia nuttalliana FACW Owyhee Mudwort Limosella acaulis OBL Noble Fir Abies procera FACU Nuttall's Perennial Gily-Flower Leptosiphon nuttallii FACU Ox-Eye Daisy Leucanthemum vulgare UPL Nodding Blue Grass Poa reflexa FAC Nuttall's Poverty-Weed Monolepis nuttalliana FAC Pacific American-Aster Symphyotrichum chilense FAC Nodding Blue-Eyed-Grass Sisyrinchium cernuum FAC Nuttall's Quillwort Isoetes nuttallii OBL Pacific Bayberry Morella californica FACW Nodding Burr-Marigold Bidens cernua OBL Nuttall's Sunflower Helianthus nuttallii FACW Pacific Bleedinghearts Dicentra formosa FACU Nodding Dwarf-Sunflower Helianthella quinquenervis FACU Nuttall's Thistle Cirsium nuttallii FAC Pacific Bog Sedge Kobresia myosuroides FACU Nodding False Semaphore Grass Nuttall's Toothwort Cardamine nuttallii FAC Pacific Fir-Moss Huperzia haleakalae FACU Pleuropogon refractus OBL Oak-Leaf Goosefoot Chenopodium glaucum FAC Pacific Flowering Dogwood Cornus nuttallii FACU Nodding Mouse-Ear Chickweed Oat Avena sativa UPL Pacific Golden-Saxifrage Chrysosplenium glechomifolium Cerastium nutans FACU Obedient-Plant Physostegia virginiana FACW OBL Nodding Onion Allium cernuum FACU Oblong-Leaf Water-Moss Salvinia oblongifolia OBL Pacific Grove Clover Trifolium polyodon FACW Nodding Plumeless-Thistle Carduus nutans FACU Ocean-Blue Morning-Glory Ipomoea indica FAC Pacific Hemlock-Parsley Conioselinum pacificum FAC Nodding Saxifrage Saxifraga cernua FACW Old-Man-in-the-Spring Senecio vulgaris FACU Pacific Meadow-Foxtail Alopecurus saccatus OBL Nodding Wild Rye Elymus canadensis FAC Old-Man's-Whiskers Geum triflorum FACU Pacific Mitrewort Ozomelis trifida FAC Nootka Alkali Grass Puccinellia nutkaensis OBL Olney's Hairy Sedge Carex gynodynama FAC Pacific Ninebark Physocarpus capitatus FACW Nootka Reed Grass Calamagrostis nutkaensis FACW One-Color Willow Salix monochroma FACW Pacific Poison-Oak Toxicodendron diversilobum FACU Nootka Rose Rosa nutkana FACU One-Flower Fringed-Gentian Gentianopsis simplex FACW Pacific Popcorn-Flower Plagiobothrys tenellus FACU North Coast False Semaphore Grass One-Flower Indian-Pipe Monotropa uniflora FACU Pacific Silver Fir Abies amabilis FACU Pleuropogon hooverianus FACW One-Row Watercress Nasturtium microphyllum OBL Pacific Swampfire Sarcocornia pacifica OBL Northeastern Moonwort Botrychium pinnatum FACU One-Sided Sedge Carex unilateralis FACW Pacific Temple Grass Zoysia pacifica UPL Northern Adder's-Tongue Ophioglossum pusillum FACW Onion Grass Melica bulbosa FACU Pacific Water-Clover Marsilea oligospora OBL Northern Bedstraw Galium boreale FACU Ontario American-Aster Symphyotrichum ontarionis FAC Pacific Water-Dropwort Oenanthe sarmentosa OBL Northern Bent Agrostis mertensii FACU Open-Field Sedge Carex conoidea FACW Pacific Waterleaf Hydrophyllum tenuipes FACW Northern Black Currant Ribes hudsonianum FACW Opposite-Leaf Russian-Thistle Salsola soda FACW Pacific Willow Salix lasiandra FACW Northern Blackberry Rubus arcticus FAC Orange Bush-Monkey-Flower Diplacus aurantiacus FACU Pacific Willow Dock Rumex transitorius FACW Northern Blue Grass Poa abbreviata FACU Orange Day-Lily Hemerocallis fulva FACU Pacific Wood-Rush Luzula comosa FAC Northern Blue-Eyed-Grass Sisyrinchium septentrionale FACW Orange-Eye Butterfly-Bush Buddleja davidii FACU Pacific Wormwood Artemisia campestris UPL Northern Bog Club-Moss Lycopodiella inundata OBL Orange-Flower Goat-Chicory Agoseris aurantiaca FAC Pacific Yew Taxus brevifolia FACU Northern Bog Sedge Carex gynocrates OBL Orchard Grass Dactylis glomerata FACU Pacific-Coast Eared Rockcress Arabis eschscholtziana FACU Northern Bog Starwort Stellaria calycantha FACW Orcutt's Cluster-Lily Brodiaea orcuttii OBL Paiuteweed Suaeda calceoliformis FACW Northern Bog Violet Viola nephrophylla FACW Orcutt's Quillwort Isoetes orcuttii OBL Pale Bellflower Campanula scouleri FACU Northern Bracken Fern Pteridium aquilinum FACU Oregon Ash Fraxinus latifolia FACW Pale Bulrush Scirpus pallidus OBL Northern Buttercup Ranunculus arcticus FAC Oregon Bent Agrostis oregonensis FACW Pale Dock Rumex altissimus FACW Northern California Walnut Juglans hindsii FAC Oregon Bluebells Mertensia bella FACW Pale Duckweed Lemna valdiviana OBL Northern Catalpa Catalpa speciosa FAC Oregon Boxleaf Paxistima myrsinites FACU Pale False Manna Grass Torreyochloa pallida OBL Northern Cluster Sedge Carex arcta OBL Oregon Buttercup Ranunculus oreogenes FACU Pale Gentian Gentiana glauca FAC Northern False Coolwort Bolandra oregana FACW Oregon Checkerbloom Sidalcea oregana FACW Pale Goat-Chicory Agoseris glauca FACU Northern Frogfruit Phyla lanceolata OBL Oregon Crabapple Malus fusca FAC Pale Great Club-Rush Schoenoplectus heterochaetus OBL Pale Sedge Carex pallescens FAC Persistent-Sepal Yellowcress Rorippa calycina FACW Prairie Straw Sedge Carex suberecta OBL Pale-Seed Plantain Plantago virginica FACU Peruvian Ground-Cherry Physalis peruviana UPL Prairie Wedgescale Sphenopholis obtusata FAC Pale-Yellow Indian-Paintbrush Castilleja occidentalis FAC Peruvian Peppertree Schinus molle FACU Presl's Sedge Carex preslii FACU Pale-Yellow Iris Iris pseudacorus OBL Petite-Licorice Plecostachys serpyllifolia FACU Prettyface Triteleia ixioides FAC Pale-Yellow Tidytips Layia heterotricha FAC Petticoat-Climber Eragrostis spectabilis UPL Prickly Comfrey Symphytum asperum FAC Pale-Yellow Touch-Me-Not Impatiens aurella FACW Philadelphia Fleabane Erigeron philadelphicus FACU Prickly Fanpetals Sida spinosa UPL Palm-Bract Salt-Bird's-Beak Chloropyron palmatum OBL Pickerelweed Pontederia cordata OBL Prickly Lettuce Lactuca serriola FACU Palmer's Mariposa-Lily Calochortus palmeri FACW Piggyback-Plant Tolmiea menziesii FACW Prickly Rose Rosa acicularis FACU Palmer's Sea-Heath Frankenia palmeri FACW Pill-Pod Sandmat Euphorbia hirta FACU Prickly Russian-Thistle Salsola tragus FACU Panal Cypselea humifusa FACW Pimpernel Willowherb Epilobium anagallidifolium FACU Prickly Spiral Grass Tuctoria mucronata OBL Pan-American Balsamscale Elionurus tripsacoides FAC Pincushion Beardtongue Penstemon procerus FAC Princesstree Paulownia tomentosa UPL Pangola Grass Digitaria eriantha FACU Pine Nut Mountain Mousetail Ivesia pityocharis FACW Profuse-Flower Mesa-Mint Pogogyne floribunda OBL Panic Liverseed Grass Urochloa panicoides FACU Pineapple-Weed Matricaria discoidea FACU Proliferous Lateral-Bulrush Isolepis prolifera OBL Paper Birch Betula papyrifera FAC Pine-Barren Flat Sedge Cyperus retrorsus FAC Proliferous Marsh-Pennywort Hydrocotyle prolifera OBL Paper-Mulberry Broussonetia papyrifera FACU Pineland Sword Fern Polystichum munitum FACU Prostrate Pincushion-Plant Navarretia prostrata OBL Papyrus Flat Sedge Cyperus papyrus OBL Pinewoods Clover Trifolium pinetorum FACW Prostrate Sandmat Euphorbia prostrata FACU Parasol Clover Trifolium bolanderi OBL Pink Alumroot Heuchera rubescens UPL Puget Sound Gumweed Grindelia integrifolia FACW Parish's Alkali Grass Puccinellia parishii OBL Pink Honeysuckle Lonicera hispidula FACU Pullup Muhly Muhlenbergia filiformis FACW Parish's Flat Sedge Cyperus parishii FACW Pink Knotweed Persicaria bicornis FACW Pungent False Tarplant Centromadia pungens FAC Parish's Glasswort Arthrocnemum subterminale FACW Pink Mountain-Heath Phyllodoce empetriformis FACU Purple Amaranth Amaranthus blitum FAC Parish's Monkey-Flower Mimulus parishii FACU Pink Wintergreen Pyrola asarifolia FAC Purple Avens Geum rivale FACW Parish's Popcorn-Flower Plagiobothrys parishii OBL Pinked Mistflower Conoclinium dissectum FACU Purple Bush-Bean Macroptilium atropurpureum FACU Parish's Scorpion-Weed Phacelia parishii FACU Pink-Head Smartweed Persicaria capitata FACU Purple Cluster Crane's-Bill Geranium caespitosum FAC Parish's Spike-Rush Eleocharis parishii FACW Pinkqueen Tarenaya hassleriana FACU Purple Flat Sedge Cyperus rotundus FAC Parish's Yampah Perideridia parishii FAC Pinkweed Persicaria pensylvanica FACW Purple Foxglove Digitalis purpurea FACU Park Milk-Vetch Astragalus leptaleus OBL Pioneer Violet Viola glabella FAC Purple Loosestrife Lythrum salicaria OBL Park Willow Salix monticola OBL Piper's Windflower Anemone piperi FACU Purple Love Grass Eragrostis pectinacea FAC Parrot's-Feather Myriophyllum aquaticum OBL Pit-Scale Grass Hackelochloa granularis UPL Purple Marshlocks Comarum palustre OBL Parry's Bellflower Campanula parryi FACU Plains Flat Sedge Cyperus onerosus FACW Purple Meadow-Rue Thalictrum dasycarpum FACW Parry's Clover Trifolium parryi FAC Plains Ironweed Vernonia marginata FACU Purple Milkwort Polygala sanguinea FACU Parry's False Tarplant Centromadia parryi FACW Plantain Goldenweed Pyrrocoma uniflora FACW Purple Mountain Saxifrage Saxifraga oppositifolia FACU Parry's Gentian Gentiana parryi FAC Platte River Cinquefoil Potentilla plattensis FACW Purple Pitcherplant Sarracenia purpurea OBL Parry's Knotweed Polygonum parryi FAC Playa Beeplant Peritoma multicaulis FACW Purple Rattlesnake-Root Nabalus racemosus FACU Parry's Locoweed Oxytropis parryi FACU Playa Yellow Scorpion-Weed Phacelia inundata FACW Purple River-Hemp Sesbania punicea FACW Parry's Lousewort Pedicularis parryi FACU Pleated Gentian Gentiana affinis FACU Purple Spike-Rush Eleocharis atropurpurea FACW Parry's Rush Juncus parryi FAC Plumas Clover Trifolium beckwithii FAC Purple Strawberry Guava Psidium cattleianum FACU Parry's Saltbush Atriplex parryi FAC Plumas Mountaincrown Oreostemma elatum FACW Purple Sweet-Cicely Osmorhiza purpurea FAC Parry's Sedge Carex parryana FAC Plumas Mousetail Ivesia sericoleuca FAC Purple Willow Salix purpurea FACW Parry's Thistle Cirsium parryi FACW Poet's Shootingstar Dodecatheon poeticum FAC Purple-Flower Honeysuckle Lonicera conjugialis FAC Partridgefoot Luetkea pectinata FACU Poinsettia Euphorbia pulcherrima UPL Purple-Flower Lousewort Pedicularis crenulata FACW Payson's Sedge Carex paysonis FACU Pointed Broom Sedge Carex scoparia FACW Purple-Lip Pansy Monkey-Flower Mimulus Peach-Leaf Willow Salix amygdaloides FACW Pointed Rush Juncus oxymeris FACW angustatus OBL Peak Pseudosaxifrage Micranthes nidifica FACW Poison Suckleya Suckleya suckleyana FACW Purple-Stem Monkey-Flower Mimulus floribundus OBL Pearl Yarrow Achillea ptarmica FACU Poison-Hemlock Conium maculatum FACW Purple-Top Vervain Verbena bonariensis FACW Pearleaf Leptarrhena pyrolifolia FACW Policeman's-Helmet Impatiens glandulifera FACW Pussy Willow Salix discolor FACW Pearl-Millet Cenchrus americanus UPL Polished Willow Salix laevigata FACW Pygmy Bluet Houstonia wrightii FACU Pearly-Everlasting Anaphalis margaritacea FACU Pond Water-Starwort Callitriche stagnalis OBL Pygmy Gentian Gentiana prostrata FACW Peatree Sesbania herbacea FACW Ponderosa Muhly Muhlenbergia ramulosa FACU Pygmy-Flower Rock-Jasmine Androsace septentrionalis FACU Pecan Carya illinoinensis FAC Ponderosa Pine Pinus ponderosa FACU Pyramid-Flower Melochia pyramidata FAC Pendant-Pod Locoweed Oxytropis deflexa FACU Poorjoe Diodia teres FACU Pyrenean Sedge Carex micropoda FAC Pendulous Sedge Carex pendula FAC Poorman's-Pepperwort Lepidium virginicum FACU Quailbush Atriplex lentiformis FAC Pennsylvania Blackberry Rubus pensilvanicus FAC Porcupine Sedge Carex hystericina OBL Quaker Bittercress Cardamine pensylvanica FACW Pennsylvania Buttercup Ranunculus pensylvanicus FACW Port Orford-Cedar Chamaecyparis lawsoniana FACU Quaking Aspen Populus tremuloides FACU Pennsylvania Cinquefoil Potentilla pensylvanica FACU Porterplant Porterella carnosula OBL Queen Anne's-Lace Daucus carota UPL Pennsylvania Everlasting Gamochaeta pensylvanica UPL Porter's Wild Lovage Ligusticum porteri FACU Queen's-Crown Rhodiola rhodantha FACW Pennsylvania Pellitory Parietaria pensylvanica FACU Prairie Blue Grass Poa arida FAC Queen's-Jewels Antigonon leptopus FAC Pennyroyal Mentha pulegium OBL Prairie Bundle-Flower Desmanthus illinoensis FACU Quill Sedge Carex tenera FACW Peppervine Ampelopsis arborea FAC Prairie Cup Grass Eriochloa contracta FAC Quinineweed Zeltnera beyrichii FACU Peregrine Saltbush Atriplex suberecta FACU Prairie Fleabane Erigeron strigosus FACU Rainbow Iris Iris hartwegii FACU Perennial Fringed-Gentian Gentianopsis barbellata FACW Prairie Golden-Banner Thermopsis rhombifolia FACU Rainier Pleated Gentian Gentiana calycosa FACW Perennial Quaking Grass Briza media FAC Prairie Groundsel Packera plattensis UPL Rambler Rose Rosa multiflora FACU Perennial Ragweed Ambrosia psilostachya FACU Prairie Plantain Plantago elongata FACW Ram's-Horn Proboscidea louisiana FACU Perennial Rye Grass Lolium perenne FAC Prairie Rose Rosa arkansana FACU Rancheria Clover Trifolium albopurpureum FACU Perfoliate Blackfoot Melampodium perfoliatum FAC Prairie Spiderwort Tradescantia occidentalis FACU Ranenna Grass Saccharum ravennae FAC Rannoch-Rush Scheuchzeria palustris OBL Rock Sea-Lavender Limonium binervosum FAC Round-Leaf Leather-Root Hoita orbicularis OBL Rape Brassica rapa FACU Rock Willow Salix vestita FAC Round-Leaf Monkey-Flower Mimulus glabratus OBL Rat-Tail Six-Weeks Grass Vulpia myuros FACU Rockfringe Epilobium obcordatum FACU Round-Leaf Orchid Platanthera rotundifolia OBL Rattlesnake Brome Bromus briziformis UPL Rocky Mountain Alpine Fir Abies bifolia FACU Round-Leaf Sundew Drosera rotundifolia OBL Rattlesnake Fern Botrypus virginianus FAC Rocky Mountain Beeplant Peritoma serrulata FACU Round-Leaf Thimbleweed Anemone canadensis FAC Rayless Alpine Groundsel Packera pauciflora FAC Rocky Mountain Buttercup Ranunculus macauleyi FACW Round-Leaf Willow Salix rotundifolia FACW Rayless Mountain Groundsel Packera indecora FACW Rocky Mountain Checkerbloom Sidalcea neomexicana FACW Round-Seed Rosette Grass Dichanthelium sphaerocarpon FACU Raynolds' Sedge Carex raynoldsii FACU Rocky Mountain Cinquefoil Potentilla rubricaulis FACU Royal Flat Sedge Cyperus elegans FACW Red Alder Alnus rubra FACW Rocky Mountain Club-Rush Schoenoplectus saximontanus OBL Ruby Mountain Primrose Primula capillaris FACW Red Baneberry Actaea rubra FAC Rocky Mountain Fringed-Gentian Ruby Sandspurry Spergularia rubra FAC Red Bearberry Arctostaphylos uva-ursi FACU Gentianopsis thermalis FACW Ruby-Saltbush Enchylaena tomentosa UPL Red Bladder-Vetch Sphaerophysa salsula FACU Rocky Mountain Goldenrod Solidago multiradiata FACU Ruffled Starwort Stellaria crispa FAC Red Blueberry Vaccinium parvifolium FAC Rocky Mountain Groundsel Packera streptanthifolia FACU Rufous Bulrush Scirpus pendulus OBL Red Bluff Dwarf Rush Juncus leiospermus OBL Rocky Mountain Hemlock-Parsley Running Ground-Pine Lycopodium clavatum FAC Red Clover Trifolium pratense FACU Conioselinum scopulorum FACW Rusby's Primrose Primula rusbyi FAC Red Elder Sambucus racemosa FACU Rocky Mountain Honeysuckle Lonicera utahensis FAC Rush Hair Sedge Bulbostylis juncoides FACW Red Fescue Festuca rubra FAC Rocky Mountain Iris Iris missouriensis FACW Rush-Leaf Eryngo Eryngium petiolatum OBL Red Goosefoot Chenopodium rubrum FACW Rocky Mountain Larkspur Delphinium scopulorum FAC Russet Buffalo-Berry Shepherdia canadensis UPL Red Hills Vervain Verbena californica FACW Rocky Mountain Lousewort Pedicularis scopulorum FACW Russet Sedge Carex saxatilis OBL Red Love Grass Eragrostis secundiflora UPL Rocky Mountain Maple Acer glabrum FAC Russet-Hair Pseudosaxifrage Micranthes ferruginea FAC Red Mountain-Heath Phyllodoce breweri FAC Rocky Mountain Pincushion-Plant Russian Blue Lettuce Lactuca tatarica FAC Red Mulberry Morus rubra FACU Navarretia saximontana FACW Russian-Olive Elaeagnus angustifolia FAC Red Osier Cornus alba FACW Rocky Mountain Pussytoes Antennaria media FAC Russian-Wild Rye Psathyrostachys juncea UPL Red Saltwort Salicornia rubra OBL Rocky Mountain Rush Juncus saximontanus FACW Rusty Blackhaw Viburnum rufidulum FACU Red Torpedoberry Arctous ruber FAC Rocky Mountain Snowlover Chionophila jamesii FACU Rusty Flat Sedge Cyperus odoratus FACW Red Willow Salix bonplandiana FACW Rocky Mountain Starwort Stellaria obtusa FACW Rusty Popcorn-Flower Plagiobothrys nothofulvus FAC Redbud Cercis canadensis UPL Rocky Mountain Willowherb Epilobium saximontanum FACW Rusty Sedge Carex subfusca FAC Reddish Pondweed Potamogeton alpinus OBL Rolland's Leafless-Bulrush Trichophorum pumilum FACW Saber Bogmat Wolffiella oblonga OBL Red-Flower Ragleaf Crassocephalum crepidioides FACU Roosevelt-Weed Baccharis neglecta FAC Sacramento Cat's-Eye Cryptantha crinita FACU Red-Head Pondweed Potamogeton richardsonii OBL Rooted Spike-Rush Eleocharis radicans OBL Sacramento Mesa-Mint Pogogyne ziziphoroides OBL Red-Root Amaranthus retroflexus FACU Rooting Chain Fern Woodwardia radicans OBL Sacramento Mountain Thistle Cirsium vinaceum OBL Red-Root Flat Sedge Cyperus erythrorhizos OBL Rope-Root Sedge Carex chordorrhiza OBL Sacramento Orcutt Grass Orcuttia viscida OBL Red-Seed Plantain Plantago rhodosperma FAC Rose Evening-Primrose Oenothera rosea FACW Sacramento Saltbush Atriplex persistens FACW Red-Stem Pseudosaxifrage Micranthes lyallii FACW Rose-Moss Portulaca grandiflora UPL Sacramento Valley Buttercup Ranunculus canus FAC Red-Stem Waterwort Elatine rubella OBL Rose-Pink Sabatia angularis FAC Sacred Thorn-Apple Datura wrightii UPL Red-Tinge Bulrush Scirpus microcarpus OBL Rosette Crinklemat Tiquilia nuttallii UPL Saffron Groundsel Packera crocata FAC Red-Top Cut-Throat Grass Coleataenia rigidula FACW Rosilla Helenium puberulum FACW Sage Willow Salix candida OBL Red-Whisker Clammyweed Polanisia dodecandra FACU Rosinbush Baccharis sarothroides FACU Sagebrush Buttercup Ranunculus glaberrimus FAC Redwood-Sorrel Oxalis oregana FACU Ross' Avens Geum rossii FACU Sago False Pondweed Stuckenia pectinata OBL Red-Woolly Plantain Plantago eriopoda FACW Ross' Bent Agrostis rossiae FAC Salal Gaultheria shallon FACU Reed Canary Grass Phalaris arundinacea FACW Rosy Deer-Vetch Hosackia rosea UPL Saline Clover Trifolium hydrophilum FAC Regel's Rush Juncus regelii FACW Rosy Indian-Paintbrush Castilleja rhexiifolia FAC Saline Saltbush Atriplex dioica FAC Resin Birch Betula glandulosa OBL Rosy Owl-Clover Orthocarpus bracteosus FAC Saline Valley Scorpion-Weed Phacelia amabilis FACU Retrorse Sedge Carex retrorsa OBL Rosy Sedge Carex rosea FAC Salmon Raspberry Rubus spectabilis FAC Reversed Clover Trifolium resupinatum UPL Rougeplant Rivina humilis FAC Salt Rush Juncus lescurii FACW Rhodes Grass Chloris gayana FACU Rough Barnyard Grass Echinochloa muricata FACW Saltmarsh Alkali Grass Puccinellia fasciculata OBL Rhomboid-Bract Saltbush Atriplex depressa FAC Rough Bent Agrostis scabra FAC Saltmarsh Club-Rush Schoenoplectus maritimus OBL Ribbon-Leaf Pondweed Potamogeton epihydrus OBL Rough Bristle Grass Setaria verticillata FACU Saltmarsh Rush Juncus gerardii FACW Rice Cut Grass Leersia oryzoides OBL Rough Cockleburr Xanthium strumarium FAC Saltmarsh Salt-Bird's-Beak Chloropyron maritimum OBL Ricefield Flat Sedge Cyperus iria FACW Rough Forget-Me-Not Myosotis arvensis FAC Saltmarsh Sandspurry Spergularia marina OBL Rice-Field Grass Echinochloa oryzicola FACW Rough Hedge-Nettle Stachys rigida FACW Saltmarsh Starwort Stellaria humifusa OBL Ricefield Waternymph Najas graminea OBL Rough Rosette Grass Dichanthelium leucothrix FACW Salt-Meadow Cord Grass Spartina patens OBL Richardson's Brome Bromus richardsonii FACU Rough Water-Horehound Lycopus asper OBL Saltwater Cord Grass Spartina alterniflora OBL Richardson's Rice Grass Achnatherum richardsonii UPL Rough White Prairie American-Aster Salty Popcorn-Flower Plagiobothrys salsus FACW Rillita Pellitory Parietaria hespera FACU Symphyotrichum falcatum FACU Samiland-Gentian Comastoma tenellum FACW Rimrock Ladies'-Braids Funkiella confusa FAC Rough-Fruit Amaranth Amaranthus tuberculatus FACW San Bernardino American-Aster River Broom-Rape Orobanche riparia FACW Rough-Fruit Fairybells Prosartes trachycarpa FACU Symphyotrichum defoliatum OBL River Club-Rush Schoenoplectus fluviatilis OBL Rough-Fruit Popcorn-Flower Plagiobothrys trachycarpus FACW San Bernardino Blue Grass Poa atropurpurea FACW River Hawthorn Crataegus rivularis FAC Rough-Fruit Scaleseed Spermolepis divaricata FACW San Bernardino Grass-of-Parnassus River Red Gum Eucalyptus camaldulensis FAC Rough-Stalk Blue Grass Poa trivialis FACW Parnassia cirrata OBL River-Bank Grape Vitis riparia FAC Round-Fruit Rush Juncus compressus OBL San Bernardino Groundsel Packera bernardina FACU River-Bank Lupine Lupinus rivularis FACU Round-Fruit Yellowcress Rorippa sphaerocarpa FACW San Bernardino Mountain Monkey-Flower Mimulus Robbins' Milk-Vetch Astragalus robbinsii FAC Round-Leaf Brookfoam Boykinia rotundifolia FACW exiguus FACU Rock Grape Vitis rupestris FACU Round-Leaf Groundsel Packera obovata FACU San Diego Goldenstars Bloomeria clevelandii FACU San Diego Marsh-Elder Iva hayesiana FACW Seacoast Angelica Angelica lucida FAC Short-Spike Canary Grass Phalaris brachystachys FACW San Diego Mesa-Mint Pogogyne abramsii OBL Sea-Daffodil Pancratium maritimum FACU Short-Spike Hedge-Nettle Stachys pycnantha FACW San Diego Moonshine-Daisy Deinandra paniculata FACU Sea-Milkwort Lysimachia maritima FACW Short-Spur Seablush Plectritis congesta FACU San Diego Pepperwort Lepidium latipes FACW Seashore Bent Agrostis pallens FACU Short-Stalk Mouse-Ear Chickweed San Diego Rice Grass Achnatherum diegoense FACW Seashore Blue Grass Poa douglasii FACU Cerastium brachypodum FAC San Diego Sedge Carex spissa FAC Seashore Crown Grass Paspalum vaginatum FACW Short-Stalk Sedge Carex podocarpa FAC San Diego Thorn-Mint Acanthomintha ilicifolia FAC Seaside American-Aster Symphyotrichum subulatum OBL Short-Stalk Stinkweed Cleomella brevipes FACW San Francisco Blue Grass Poa unilateralis FACU Seaside Arrow-Grass Triglochin maritima OBL Showy Alpine Ragwort Senecio amplectens FACW San Gabriel Bluecup Githopsis diffusa FAC Seaside Barley Hordeum marinum FAC Showy Coneflower Rudbeckia alpicola FACW San Jacinto Bluecurls Trichostema austromontanum OBL Seaside Bittercress Cardamine angulata FACW Showy Indian Clover Trifolium amoenum FACW San Joaquin Mock Saltbush Extriplex joaquiniana FACU Seaside Club-Rush Schoenoplectus robustus OBL Showy Maiden Fern Thelypteris puberula FACW San Joaquin Valley Orcutt Grass Orcuttia Seaside Fleabane Erigeron glaucus FACU Showy Melic Grass Melica spectabilis FAC inaequalis OBL Seaside Heliotrope Heliotropium curassavicum FACU Showy Milkweed Asclepias speciosa FAC San Joaquin Woollythread Monolopia congdonii FACU Seaside-Petunia Calibrachoa parviflora FACW Showy Pussytoes Antennaria pulcherrima FACU San Luis Obispo Sedge Carex obispoensis FACW Seawrack Zostera marina OBL Showy Raillardella Raillardella pringlei OBL San Pedro Matchweed Xanthocephalum gymnospermoides Seep Monkey-Flower Mimulus guttatus OBL Showy Whitlow-Grass Draba spectabilis FACU FAC Selfing Willowherb Epilobium cleistogamum OBL Shrubby Alkali Desert Tansy-Aster Arida Sand Bittercress Cardamine parviflora FACW Selloa Pampus Grass Cortaderia selloana FACU carnosa OBL Sand Bush-Mallow Malacothamnus davidsonii FACU Serpent-Grass Bistorta vivipara FAC Shrubby Seepweed Suaeda nigra OBL Sand Dropseed Sporobolus cryptandrus FACU Serpentine Bittercress Cardamine pachystigma FAC Shrubby Willowherb Epilobium suffruticosum FACU Sand Flat Sedge Cyperus schweinitzii FAC Serpentine Sunflower Helianthus exilis FACU Shrubby-Yellowcrest Heimia salicifolia FACW Sand Plantain Plantago arenaria UPL Sessile-Fruit Arrowhead Sagittaria rigida OBL Siberian Bog Sedge Kobresia sibirica FAC Sand Pygmyweed Crassula connata FAC Several-Vein Sweetflag Acorus americanus OBL Siberian Elm Ulmus pumila UPL Sand Spike-Rush Eleocharis montevidensis FACW Shaggy Lupine Lupinus covillei FACU Siberian Springbeauty Claytonia sibirica FAC Sandbar Love Grass Eragrostis frankii FACW Shaggy-Soldier Galinsoga quadriradiata UPL Siberian Water-Milfoil Myriophyllum sibiricum OBL Sandbar Willow Salix interior FACW Sharp Dock Rumex conglomeratus FACW Siberian Wood-Aster Eurybia sibirica FAC Sand-Dune Blue Grass Poa macrantha UPL Sharp-Leaf Buttercup Ranunculus acriformis FACW Sickle-Leaf Rush Juncus falcatus FACW Sand-Dune Sedge Carex pansa FACU Sharp-Leaf Cancerwort Kickxia elatine UPL Sidebells Orthilia secunda FACU Sandhill Amaranth Amaranthus arenicola FACU Shasta Clover Trifolium productum FAC Side-Flower Bishop's-Cap Mitella stauropetala FAC Sandpaper Vervain Verbena scabra OBL Shasta River Mariposa-Lily Calochortus monanthus FAC Sierran Beardtongue Penstemon heterodoxus FACU Santa Barbara Sedge Carex barbarae FAC Sheathed False Deathcamas Anticlea vaginata FAC Sierran Bittercress Cardamine breweri FACW Santa Catalina Mountain-Pink Zeltnera nudicaulis FACW Sheathed False Pondweed Stuckenia vaginata OBL Sierran Calico-Flower Downingia montana OBL Santa Cruz Gooseberry Ribes thacherianum FACU Sheep Fescue Festuca ovina FACU Sierran Checkerbloom Sidalcea reptans OBL Santa Cruz Sedge Carex saliniformis FACW Sheep Wild Lovage Ligusticum grayi FAC Sierran Currant Ribes nevadense FAC Santa Lucia Dwarf Rush Juncus luciensis OBL Sheldon's Sedge Carex sheldonii OBL Sierran Desert-Milkwort Rhinotropis cornuta FACW Santa Lucia Honeydew Horkelia yadonii FACU Shepherd's-Purse Capsella bursa-pastoris FACU Sierran Doghobble Leucothoe davisiae FACW Santa Lucia Mesa-Mint Pogogyne clareana FACW Shevock's False Golden-Aster Heterotheca shevockii FACU Sierran False Coolwort Bolandra californica FACW Santa Maria Feverfew Parthenium hysterophorus FAC Shield-Bract Monkey-Flower Mimulus glaucescens OBL Sierran False Needle Grass Ptilagrostis kingii FACU Sapello Canyon Larkspur Delphinium sapellonis FAC Shining Alkali Grass Puccinellia lucida OBL Sierran Fringed-Gentian Gentianopsis holopetala OBL Sartwell's Sedge Carex sartwellii OBL Shining Fir-Moss Huperzia lucidula FACW Sierran Fumewort Corydalis caseana FACW Saskatoon Service-Berry Amelanchier alnifolia FACU Shining Flat Sedge Cyperus bipartitus OBL Sierran Hare Sedge Carex leporinella FACW Satin-Flower Spergularia media FACW Shining Leopardbane Arnica fulgens FACU Sierran Honeydew Horkelia congesta FACU Sawatch Knotweed Polygonum sawatchense FACU Shining Pepperwort Lepidium nitidum FAC Sierran Mariposa-Lily Calochortus minimus FAC Saw-Tooth Sedge Carex serratodens FACW Shinleaf Pyrola elliptica UPL Sierran Mock Stonecrop Sedella pumila FAC Saw-Tooth Sunflower Helianthus grosseserratus FAC Shiny-Leaf Meadowsweet Spiraea betulifolia FACU Sierran Primrose Primula suffrutescens FAC Scadden Flat Checkerbloom Sidalcea stipularis OBL Shiny-Nutlet Popcorn-Flower Plagiobothrys nitens OBL Sierran Pseudosaxifrage Micranthes aprica FACW Scalloped Moonwort Botrychium crenulatum FACW Shore Grass Distichlis littoralis OBL Sierran Pussytoes Antennaria pulchella FAC Scarlet Cinquefoil Potentilla thurberi FACW Shoreline Sea-Purslane Sesuvium portulacastrum FACW Sierran Ragwort Senecio scorzonella FAC Scarlet Hedge-Nettle Stachys coccinea FAC Short-Awn Meadow-Foxtail Alopecurus aequalis OBL Sierran Rush Juncus nevadensis FACW Scarlet Monkey-Flower Mimulus cardinalis FACW Short-Beak Arrowhead Sagittaria brevirostra OBL Sierran Sedge Carex nervina FACW Scarlet Yellow-Loosestrife Lysimachia arvensis FAC Short-Beak Sedge Carex brevior FAC Sierran Shootingstar Dodecatheon subalpinum FACU Scentbottle Piperia dilatata FACW Short-Beak Water-Crowfoot Ranunculus subrigidus OBL Sierran Skullcap Scutellaria bolanderi FACW Scented Shootingstar Dodecatheon redolens OBL Short-Flower Monkey-Flower Mimulus breviflorus FACW Sierran Springbeauty Claytonia nevadensis FAC Schaffner's Grasswort Lilaeopsis schaffneriana OBL Short-Fruit Willow Salix brachycarpa FACW Sierran Tiger Lily Lilium parvum OBL Schott's Sedge Carex schottii OBL Short-Hair Reed Grass Calamagrostis breweri FACW Sierran Willow Salix eastwoodiae FACW Scotter's Fleabane Erigeron nivalis FAC Short-Leaf Fringed Orchid Platanthera brevifolia FAC Sierran Woodbeauty Drymocallis lactea FAC Scouler's St. John's-Wort Hypericum scouleri FACW Short-Leaf Hair Grass Deschampsia brevifolia FACW Sierran-Bayberry Myrica hartwegii FAC Scouler's Surf-Grass Phyllospadix scouleri OBL Short-Leaf Rush Juncus brachyphyllus FAC Silk-Cotton Purslane Portulaca halimoides FAC Scouler's Valerian Valeriana scouleri FAC Short-Leaf Sedge Carex fuliginosa FACU Silk-Oak Grevillea robusta UPL Scouler's Willow Salix scouleriana FAC Short-Leaf Spike Sedge Kyllinga brevifolia FACW Silky Mousetail Ivesia pickeringii OBL Sculptured Popcorn-Flower Plagiobothrys glyptocarpus FACW Short-Pod Thelypody Thelypodium brachycarpum UPL Silver Buffalo-Berry Shepherdia argentea FACU Sea Thrift Armeria maritima FACU Short-Ray Fleabane Erigeron lonchophyllus FACW Silver Dwarf-Morning-Glory Evolvulus sericeus UPL Sea Vetchling Lathyrus japonicus FACU Short-Seed Waterwort Elatine brachysperma OBL Silver Maple Acer saccharinum FAC Seablite Suaeda esteroa FACW Short-Sepal Bitter-Root Lewisia brachycalyx FACU Silver-Leaf Cinquefoil Potentilla argentea FACU Silver-Leaf Milk-Vetch Astragalus argophyllus FACW Slough Sedge Carex obnupta OBL Soft Salt-Bird's-Beak Chloropyron molle OBL Silver-Leaf Pony's-Foot Dichondra sericea FACU Slough Thistle Cirsium crassicaule OBL Soft-Leaf Sedge Carex disperma OBL Silverscale Atriplex argentea FAC Small Black-Tip Ragwort Senecio lugens FAC Soft-Stem Club-Rush Schoenoplectus tabernaemontani Silver-Sheath Knotweed Polygonum argyrocoleon FAC Small Camas Camassia quamash FACW OBL Silverweed Potentilla anserina OBL Small Coastal Germander Teucrium cubense FACW Soft-Stem Spike-Rush Eleocharis mamillata OBL Silvery Primrose Primula incana OBL Small Cranberry Vaccinium oxycoccos OBL Soldier Meadows Cinquefoil Potentilla basaltica FACW Simple Bog Sedge Kobresia simpliciuscula FACW Small Dropseed Sporobolus neglectus UPL Soldier Rockcress Boechera lemmonii FACU Simpler's-Joy Verbena hastata FAC Small Enchanter's-Nightshade Circaea alpina FAC Sonoma Hedge-Nettle Stachys stricta OBL Single-Cone Ground-Pine Lycopodium lagopus FACU Small Floating Manna Grass Glyceria borealis OBL Sonoran Deer-Vetch Hosackia alamosana OBL Single-Delight Moneses uniflora FACU Small Pondweed Potamogeton pusillus OBL Sonoran Slender-Thoroughwort Fleischmannia sonorae FAC Singletary Vetchling Lathyrus hirsutus FAC Small-Bract Sedge Carex subbracteata FACW Sonoran Viper Grass Dinebra viscida FACU Single-Vein Sweetflag Acorus calamus OBL Small-Flower Bluecurls Trichostema micranthum FAC Sorrelvine Cissus trifoliata UPL Sisal-Hemp Agave sisalana UPL Small-Flower Buttercup Ranunculus parviflorus FAC Sour Clover Trifolium fucatum FACU Siskiyou Mountain Groundsel Packera macounii FACU Small-Flower Goat-Chicory Agoseris parviflora FACU Sour Grass Digitaria insularis UPL Siskiyou Willowherb Epilobium siskiyouense FACW Small-Flower Grass-of-Parnassus South American Waterweed Elodea callitrichoides OBL Sitka Alder Alnus viridis FACW Parnassia parviflora OBL Southern Adder's-Tongue Ophioglossum vulgatum FAC Sitka Mistmaiden Romanzoffia sitchensis FACW Small-Flower Halfchaff Sedge Lipocarpha micrantha OBL Southern Bald-Cypress Taxodium distichum OBL Sitka Mountain-Ash Sorbus sitchensis FAC Small-Flower Indian-Paintbrush Castilleja parviflora FAC Southern California Walnut Juglans californica FACU Sitka Spruce Picea sitchensis FAC Small-Flower Monkey-Flower Mimulus inconspicuus FACU Southern Catalpa Catalpa bignonioides UPL Sitka Valerian Valeriana sitchensis FAC Small-Flower Poison Camas Toxicoscordion micranthum OBL Southern Cat-Tail Typha domingensis OBL Sitka Willow Salix sitchensis FACW Small-Flower Starlet Gymnosteris parvula FAC Southern Crab Grass Digitaria ciliaris FACU Six-Weeks Love Grass Eragrostis lutescens FACU Small-Flower Stinkweed Cleomella parviflora FACW Southern Cut Grass Leersia hexandra OBL Skunkweed Navarretia squarrosa FACU Small-Flower Sweetbrier Rosa micrantha FACU Southern Goldenrod Solidago confinis OBL Sleepingplant Chamaecrista fasciculata FACU Small-Flower Tamarisk Tamarix parviflora FAC Southern Maidenhair Adiantum capillus-veneris FACW Sleepydick Ornithogalum umbellatum FACU Small-Flower Thimbleweed Anemone parviflora FACW Southern Marsh Yellowcress Rorippa teres FACW Slender Amaranth Amaranthus viridis FAC Small-Flower Valerian Valeriana occidentalis FAC Southern Mountainbalm Monardella australis FACU Slender Arrow-Grass Triglochin concinna OBL Small-Flower Wood-Rush Luzula parviflora FAC Southern Sandburr Cenchrus echinatus FACU Slender Bog Orchid Platanthera stricta FACW Small-Head Clover Trifolium microcephalum FAC Southwestern Cosmos Cosmos parviflorus FACU Slender Centaury Centaurium tenuiflorum FACW Small-Head Pipewort Eriocaulon microcephalum OBL Southwestern Showy Sedge Carex bella FACU Slender Cotton-Grass Eriophorum gracile OBL Small-Head Sedge Carex illota FACW Spanish False Fleabane Pulicaria paludosa FAC Slender Cottonseed Micropus californicus FACU Small-Head Sneezeweed Helenium microcephalum FACW Spanishgold Grindelia ciliata FACU Slender Crown Grass Paspalum setaceum UPL Small-Leaf Angelica Angelica pinnata FACW Spanish-Needles Bidens bipinnata FAC Slender Cudweed Gnaphalium exilifolium FACW Small-Leaf Bent Agrostis microphylla FACW Sparse-Flower Sedge Carex tenuiflora OBL Slender Fimbry Fimbristylis autumnalis OBL Small-Leaf Wandering-Jew Tradescantia fluminensis FAC Spatula-Leaf Loosestrife Lythrum portula OBL Slender Hair Grass Deschampsia elongata FACW Small-Spike False Nettle Boehmeria cylindrica OBL Spear-Leaf False Geesewood Lorandersonia linifolia FAC Slender Meadow-Foxtail Alopecurus myosuroides FACW Small-Wing Sedge Carex microptera FAC Spear-Leaf Leopardbane Arnica longifolia FACW Slender Mountain Matted Sandwort Smooth Beggarticks Bidens laevis OBL Spearmint Mentha spicata FACW Eremogone capillaris FACU Smooth Blue American-Aster Symphyotrichum laeve FACU Speckled Alder Alnus incana FACW Slender Orcutt Grass Orcuttia tenuis OBL Smooth Brome Bromus inermis FACU Speckle-Pod Milk-Vetch Astragalus diphysus UPL Slender Popcorn-Flower Plagiobothrys tener OBL Smooth Crab Grass Digitaria ischaemum FACU Spectacle-Fruit Wislizenia refracta FACU Slender Sea-Purslane Sesuvium maritimum FACW Smooth Flat Sedge Cyperus laevigatus FACW Spiked Bent Agrostis exarata FACW Slender Waternymph Najas gracillima OBL Smooth Goldfields Lasthenia glaberrima OBL Spiked Crested-Coralroot Hexalectris spicata UPL Slender Wedgescale Sphenopholis intermedia FAC Smooth Hawk's-Beard Crepis capillaris FACU Spiked False Manna Grass Torreyochloa erecta OBL Slender Whitlow-Grass Draba albertina FAC Smooth Northern-Rockcress Braya glabella FAC Spiked Muhly Muhlenbergia glomerata FACW Slender Wild Rye Elymus trachycaulus FACU Smooth Oxeye Heliopsis helianthoides FACU Spiked Wood-Rush Luzula spicata FACU Slender Wood-Reed Cinna latifolia FACW Smooth Saltbush Atriplex pusilla FAC Spinescale Atriplex spinifera FAC Slender Woollyheads Psilocarphus tenellus OBL Smooth Scouring-Rush Equisetum laevigatum FACW Spinulose Wood Fern Dryopteris carthusiana FAC Slender Yellow Wood-Sorrel Oxalis dillenii FACU Smooth Smartweed Persicaria glabra OBL Spiny Amaranth Amaranthus spinosus FACU Slender-Beak Sedge Carex athrostachya FACW Smooth Tidytips Layia chrysanthemoides FACW Spiny Cockleburr Xanthium spinosum FACU Slender-Fruit Willowherb Epilobium leptocarpum FACW Smooth White American-Aster Symphyotrichum porteri FACU Spiny Rush Juncus acutus FACW Slender-Leaf False Foxglove Agalinis tenuifolia FACW Smooth White Violet Viola macloskeyi OBL Spiny-Fruit Buttercup Ranunculus muricatus FACW Slender-Leaf False Pondweed Stuckenia filiformis OBL Smooth Willowherb Epilobium campestre OBL Spiny-Leaf Sow-Thistle Sonchus asper FAC Slender-Leaf Iceplant Mesembryanthemum nodiflorum Smooth-Beak Sedge Carex integra OBL Spiny-Sepal Eryngo Eryngium spinosepalum FACW FACU Smooth-Leaf Dogwood Cornus glabrata FACW Spiny-Spore Quillwort Isoetes echinospora OBL Slender-Leaf Wild Lovage Ligusticum tenuifolium FACW Smooth-Seed Pygmyweed Crassula solieri OBL Spiral Ditch-Grass Ruppia cirrhosa OBL Slender-Petal Thelypody Thelypodium stenopetalum FAC Smooth-Stem Sedge Carex laeviculmis FACW Spoon-Leaf Purple Everlasting Gamochaeta purpurea FACU Slender-Spike Manna Grass Glyceria leptostachya OBL Smut Grass Sporobolus indicus FACU Spoon-Leaf Sundew Drosera intermedia OBL Slender-Stem Monkey-Flower Mimulus filicaulis FACW Snow Willow Salix nivalis FACW Spotless Watermeal Wolffia arrhiza OBL Slender-Stem Rock-Jasmine Androsace filiformis FACW Snowline Wintergreen Pyrola minor FACU Spotted Beebalm Monarda punctata UPL Slimjim Flat Sedge Cyperus gracilis FAC Snow-on-the-Mountain Euphorbia marginata UPL Spotted Evening-Primrose Oenothera canescens FAC Slim-Lobe Beggarticks Bidens tenuisecta FAC Soft Brome Bromus hordeaceus FACU Spotted Lady's-Thumb Persicaria maculosa FACW Slim-Pod Rush Juncus diffusissimus FACW Soft Cinquefoil Potentilla pulcherrima FAC Spotted Sandmat Euphorbia maculata UPL Slim-Stem Reed Grass Calamagrostis stricta FACW Soft Heliotrope Heliotropium molle FACW Spotted Touch-Me-Not Impatiens capensis FACW Slippery Elm Ulmus rubra FAC Soft Popcorn-Flower Plagiobothrys mollis FACW Spotted Trumpetweed Eutrochium maculatum OBL Spotted Water-Hemlock Cicuta maculata OBL Strawberry-Tree Muntingia calabura UPL Tacky Goldenweed Pyrrocoma hirta FAC Spread-Fruit Golden-Banner Thermopsis divaricarpa FAC Straw-Color Flat Sedge Cyperus strigosus FACW Tadpole Alkali Buttercup Cyrtorhyncha ranunculina FACU Spreading Alkali Grass Puccinellia distans FACW Streambank Deer-Vetch Hosackia oblongifolia OBL Tall Alumroot Heuchera chlorantha FACU Spreading Alkali-Weed Cressa truxillensis FACW Streambank Groundsel Packera pseudaurea FACW Tall Beggarticks Bidens vulgata FACW Spreading Amaranth Amaranthus crassipes FAC Streambank Pseudosaxifrage Micranthes odontoloma FACW Tall Bluebells Mertensia paniculata FACW Spreading Bent Agrostis stolonifera FACW Streambank Rabbit's-Foot Grass Tall Buttercup Ranunculus acris FACW Spreading Dogbane Apocynum androsaemifolium UPL Polypogon elongatus OBL Tall Coastal Plantain Plantago subnuda FACW Spreading Goldeneggs Taraxia subacaulis FACW Streambank Springbeauty Claytonia parviflora FACU Tall Cotton-Grass Eriophorum angustifolium OBL Spreading Rush Juncus patens FACW Streambank Wild Hollyhock Iliamna rivularis FACW Tall False Oat Trisetum cernuum FACU Spreading Sandwort Arenaria lanuginosa FACU Streamside Fleabane Erigeron glabellus FAC Tall False Rye Grass Schedonorus arundinaceus FACU Spreading Sweetjuice Glinus radiatus FACW Streamside Wild Rye Elymus lanceolatus UPL Tall Flat Sedge Cyperus eragrostis FACW Spreading Wood Fern Dryopteris expansa FACW Stretchberry Forestiera pubescens FACU Tall Fleabane Erigeron elatior FAC Spreading Yellowcress Rorippa sinuata FACW Strict Blue-Eyed-Grass Sisyrinchium montanum FACW Tall Fringe Bluebells Mertensia ciliata FACW Spreading-Sneezeweed Centipeda minima FAC Striped Bladderwort Utricularia striata OBL Tall Goldenrod Solidago altissima FACU Spring Coralroot Corallorhiza wisteriana FAC Striped False Pondweed Stuckenia striata OBL Tall Hairy Grooveburr Agrimonia gryposepala FAC Spring Forget-Me-Not Myosotis verna FAC Striped Knotweed Polygonum striatulum FACW Tall Hedge-Mustard Sisymbrium altissimum FACU Springbank Clover Trifolium willdenowii FACW Sturdy Sedge Carex alma OBL Tall Manna Grass Glyceria elata OBL Spring-Loving Mountain-Pink Zeltnera namophila FACW Subalpine Blue Grass Poa stebbinsii FACU Tall Mountain Shootingstar Dodecatheon jeffreyi FACW Spruce-Fir Buttercup Ranunculus eschscholtzii FAC Subalpine Fir Abies lasiocarpa FACU Tall Oat Grass Arrhenatherum elatius UPL Spurless Touch-Me-Not Impatiens ecalcarata FACW Subalpine Larkspur Delphinium barbeyi FAC Tall Ragwort Senecio serra FACU Square-Stem Spike-Rush Eleocharis quadrangulata OBL Subalpine Monkey-Flower Mimulus tilingii OBL Tall Redtop Tridens flavus UPL Square-Twig Blueberry Vaccinium membranaceum FACU Suckling Clover Trifolium dubium UPL Tall Scorpion-Weed Phacelia procera FAC Squashberry Viburnum edule FACW Sugar Maple Acer saccharum FACU Tall Scouring-Rush Equisetum hyemale FACW Squaw-Lettuce Hydrophyllum occidentale FACW Sugar-Berry Celtis laevigata FAC Tall Swamp Onion Allium validum OBL Squaw's False Willow Baccharis sergiloides FACU Suisun Marsh American-Aster Symphyotrichum lentum OBL Tall Whitlow-Grass Draba praealta FACU Squawthorn Lycium torreyi FAC Suisun Thistle Cirsium hydrophilum OBL Tall Woodbeauty Drymocallis arguta FACU St. Anthony's-Turnip Ranunculus bulbosus FAC Suksdorf's Hawthorn Crataegus gaylussacia FAC Tall Woollyheads Psilocarphus elatior FACW St. Augustine Grass Stenotaphrum secundatum FAC Suksdorf's Indian-Paintbrush Castilleja suksdorfii FACW Talquezal Paspalum virgatum FACW Stalked Popcorn-Flower Plagiobothrys stipitatus FACW Suksdorf's Spike-Rush Eleocharis suksdorfiana OBL Talus Willowherb Epilobium clavatum FACU Stalkflower Nesaea longipes FACW Sulphur Beardtongue Penstemon attenuatus FACU Tansy-Leaf Goldeneggs Taraxia tanacetifolia FACU Stalk-Grain Sedge Carex stipata OBL Sulphur Buttercup Ranunculus sulphureus FACW Tapered Rosette Grass Dichanthelium acuminatum FAC Star Sedge Carex echinata OBL Sulphur Cosmos Cosmos sulphureus FACU Taper-Fruit Short-Scale Sedge Carex leptopoda FAC Starry False Solomon's-Seal Maianthemum stellatum FACU Sulphur Hot Springs Wild Buckwheat Taper-Tip Cup Grass Eriochloa acuminata FACW Stemless Locoweed Oxytropis lambertii UPL Eriogonum argophyllum FACW Taper-Tip Flat Sedge Cyperus acuminatus OBL Steven's Sedge Carex stevenii FAC Summer Coralroot Corallorhiza maculata UPL Target Dropseed Sporobolus pyramidatus FACU Sticky Cheat Gily-Flower Aliciella pinnatifida FACU Summer Grape Vitis aestivalis FACU Tassel Cotton-Grass Eriophorum viridicarinatum OBL Sticky Currant Ribes viscosissimum FAC Swamp Bellflower Campanula californica OBL Teacher's Sedge Carex praeceptorum OBL Sticky Mountain-Pink Zeltnera glandulifera FACU Swamp Dock Rumex verticillatus FACW Teal Love Grass Eragrostis hypnoides OBL Sticky Mouse-Ear Chickweed Cerastium glomeratum UPL Swamp Gentian Gentiana douglasiana OBL Tea-Leaf Willow Salix planifolia OBL Sticky Purple Crane's-Bill Geranium viscosissimum FAC Swamp Larkspur Delphinium uliginosum OBL Tecopa Salt-Bird's-Beak Chloropyron tecopense FACW Sticky Sandspurry Spergularia macrotheca FAC Swamp Leather-Flower Clematis crispa FACW Tehama Pincushion-Plant Navarretia heterandra OBL Sticky Woodbeauty Drymocallis glandulosa FAC Swamp Milkweed Asclepias incarnata OBL Texas Bergia Bergia texana OBL Sticky Woodbeauty Drymocallis rhomboidea FAC Swamp Onion Allium madidum OBL Texas Bindweed Convolvulus equitans FACU Sticky-Leaf Leopardbane Arnica ovata FACW Swamp Prickle Grass Crypsis schoenoides FACW Texas Dropseed Sporobolus texanus FACW Sticky-Stem Pearlwort Sagina maxima FAC Swamp Red Currant Ribes triste OBL Texas Evening-Primrose Oenothera texensis FACW Sticky-Willy Galium aparine FACU Swamp Saltbush Atriplex amnicola FAC Texas Flat Sedge Cyperus seslerioides FAC Stiff Blue-Eyed-Grass Sisyrinchium demissum OBL Swamp Saw-Grass Cladium mariscus OBL Texas Milkweed Asclepias texana FACU Stinging Nettle Urtica dioica FAC Swamp Smartweed Persicaria hydropiperoides OBL Texas Mulberry Morus microphylla FACU Stink Grass Eragrostis cilianensis FACU Swamp Whiteheads Sphenosciadium capitellatum FACW Texas Selenia Selenia dissecta FACW Stinkbells Fritillaria agrestis FAC Swamp-Cabbage Ipomoea aquatica OBL Texas-Blueweed Helianthus ciliaris FAC Stinking Chamomile Anthemis cotula FACU Swampcandles Lysimachia terrestris OBL Texas-Salt Allolepis texana FAC Stinking Willie Jacobaea vulgaris FACU Swaying Club-Rush Schoenoplectus subterminalis OBL Thermal Bent Agrostis pauzhetica FACU Stinknet Oncosiphon piluliferum FACU Sweet Autumn Virgin's-Bower Clematis terniflora FACU Thicket-Creeper Parthenocissus inserta FACU Stout Meadow Ragwort Senecio hydrophiloides FACW Sweet Basil Ocimum basilicum UPL Thick-Head Sedge Carex pachystachya FAC Stout Rush Juncus nodatus OBL Sweet Cherry Prunus avium FACU Thick-Leaf Drymary Drymaria pachyphylla FACU Stout Smartweed Persicaria robustior OBL Sweet Pitcherplant Sarracenia rubra OBL Thick-Leaf Ragwort Senecio crassulus FACU Straggler Daisy Calyptocarpus vialis FAC Sweet-Berry Honeysuckle Lonicera cauriana FAC Thimble Lily Lilium bolanderi FACW Straight-Beak Buttercup Ranunculus orthorhynchus FACW Sweetbrier Rosa rubiginosa UPL Thread Rush Juncus filiformis FACW Straight-Leaf Pondweed Potamogeton strictifolius OBL Sweet-Flower Rock-Jasmine Androsace chamaejasme FACU Thread-Leaf Cluster-Lily Brodiaea filifolia FAC Straight-Leaf Rush Juncus orthophyllus FACW Sweet-Gum Liquidambar styraciflua FAC Thread-Leaf Water-Crowfoot Ranunculus trichophyllus OBL Strap-Leaf Willow Salix ligulifolia FACW Sweetscent Pluchea odorata FACW Thread-Stem Carpetweed Mollugo cerviana FAC Strap-Style Gayfeather Liatris ligulistylis FAC Swollen Beaked Sedge Carex rostrata OBL Three-Bract Loosestrife Lythrum tribracteatum OBL Strawberry-Head Clover Trifolium fragiferum FAC Swollen Bladderwort Utricularia inflata OBL Three-Flower Rush Juncus triglumis FACW Strawberry-Leaf Raspberry Rubus pedatus FACU Sycamore-Leaf Snowbell Styrax platanifolius FAC Three-Leaf Chastetree Vitex trifolia UPL Three-Leaf Foamflower Tiarella trifoliata FAC Trillium-Leaf Wood-Sorrel Oxalis trilliifolia FAC Variegated Live-Forever Dudleya variegata FACU Three-Lobe Beggarticks Bidens tripartita OBL Tropical Cup Grass Eriochloa fatmensis FAC Variegated Scouring-Rush Equisetum variegatum FACW Three-Lobe Buttercup Ranunculus trilobus FACU Tropical Girdlepod Mitracarpus hirtus FACU Vasey's Grass Paspalum urvillei FAC Three-Lobe False Mallow Malvastrum coromandelianum FAC Tropical Pokeweed Phytolacca icosandra FACU Vasey's Rush Juncus vaseyi FACW Three-Petal Bedstraw Galium trifidum FACW Tropical Reed Phragmites karka OBL Veiny Dock Rumex venosus UPL Three-Rib Arrow-Grass Triglochin striata OBL Tropical Whiteweed Ageratum conyzoides FACU Veiny Vetchling Lathyrus venosus FAC Three-Square Schoenoplectus pungens OBL Troublesome Sedge Carex molesta FAC Veiny-Leaf Meadow-Rue Thalictrum venulosum FACU Three-Way Sedge Dulichium arundinaceum OBL True Babystars Leptosiphon bicolor UPL Velvet Ash Fraxinus velutina FAC Thurber's Bog Orchid Platanthera limosa OBL True Forget-Me-Not Myosotis scorpioides FACW Velvet Mesquite Prosopis velutina FACU Thurber's Pepperwort Lepidium thurberi FACU Trumpet Evening-Primrose Oenothera jamesii FACW Velvetleaf Abutilon theophrasti UPL Thurber's Sedge Carex thurberi FAC Trumpet-Creeper Campsis radicans FACU Velvet-Leaf Blueberry Vaccinium myrtilloides FACU Thurber's Sneezeweed Helenium thurberi OBL Tuberous Club-Rush Schoenoplectus glaucus OBL Velvetweed Oenothera curtiflora FACU Thyme-Leaf Mesa-Mint Pogogyne serpylloides FACW Tufted Alpine Saxifrage Saxifraga caespitosa FAC Vernal Water-Starwort Callitriche palustris OBL Thyme-Leaf Sandwort Arenaria serpyllifolia FACU Tufted Hair Grass Deschampsia caespitosa FACW Vernal-Pool Indian-Paintbrush Castilleja campestris FACW Thyme-Leaf Speedwell Veronica serpyllifolia FAC Tufted Leafless-Bulrush Trichophorum caespitosum OBL Vernal-Pool Mousetail Myosurus sessilis FACW Tierra del Fuego Dock Rumex fueginus FACW Tufted Meadow-Foxtail Alopecurus carolinianus FACW Vernal-Pool Pincushion-Plant Navarretia fossalis OBL Tievine Ipomoea cordatotriloba FAC Tufted Yellow-Loosestrife Lysimachia thyrsiflora OBL Verrucose Sea-Purslane Sesuvium verrucosum FACW Tilesius' Wormwood Artemisia tilesii FACU Tumbleweed Amaranthus albus FACU Vine Maple Acer circinatum FAC Timber Wild Oat Grass Danthonia intermedia FACU Tumbling Orache Atriplex rosea FACU Vinegar-Weed Trichostema lanceolatum FACU Timberland Blue-Eyed-Grass Sisyrinchium longipes FACW Tundra Mountaincrown Oreostemma alpigenum FAC Vine-Mesquite Hopia obtusa FACU Timothy Canary Grass Phalaris angusta FACW Tuolumne Eryngo Eryngium pinnatisectum OBL Violet Dock Rumex violascens FACW Tinctureplant Collinsia tinctoria FACU Turban Sedge Carex turbinata FACU Violet Mock Brookfoam Suksdorfia violacea FAC Tinker's-Penny Hypericum anagalloides OBL Turion Duckweed Lemna turionifera OBL Virginia Buttonweed Diodia virginiana FACW Tiny Bluet Houstonia pusilla UPL Turkey-Tangle Phyla nodiflora FACW Virginia Strawberry Fragaria virginiana FACU Tiny Mousetail Myosurus minimus OBL Turtleweed Batis maritima OBL Virginia Wild Rye Elymus virginicus FACW Tiny Vetchling Lathyrus pusillus FAC Tussock Dropseed Sporobolus diandrus UPL Virginia Winged Rockcress Planodes virginicum FAC Toad Rush Juncus bufonius FACW Tweedy's Willow Salix tweedyi FACW Virginia-Creeper Parthenocissus quinquefolia FAC Tobacco-Root Valeriana edulis FAC Twinsisters Lonicera tatarica UPL Wall Barley Hordeum murinum FACU Tolmie's Alpine Pseudosaxifrage Twisted Tanglehead Heteropogon contortus FACU Wall Bedstraw Galium parisiense UPL Micranthes tolmiei FAC Twist-Stem Spike-Rush Eleocharis torticulmis OBL Wall Germander Teucrium chamaedrys FACU Tongue-Shape Bogmat Wolffiella lingulata OBL Two-Flower Dwarf-Dandelion Krigia biflora FACU Wallowa Primrose Primula cusickiana FAC Toothed Calico-Flower Downingia cuspidata OBL Two-Flower Rush Juncus biglumis OBL Wand Panic Grass Panicum virgatum FACW Toothed Dock Rumex dentatus FACW Two-Leaf False Solomon's-Seal Warty Spurge Euphorbia spathulata FAC Toothed Medick Medicago polymorpha FACU Maianthemum dilatatum FAC Wasatch Desert-Parsley Lomatium bicolor FACU Tooth-Petal Monkey-Flower Mimulus dentilobus OBL Two-Leaf Groundsel Packera dimorphophylla FACU Washington Fan Palm Washingtonia robusta FACW Torpedo Grass Panicum repens FAC Two-Leaf Waterweed Elodea bifoliata OBL Washington Monkey-Flower Mimulus washingtonensis OBL Torrent Sedge Carex nudata FACW Two-Lobe Larkspur Delphinium nuttallianum FAC Washington Springbeauty Claytonia washingtoniana FACU Torrey's Rush Juncus torreyi FACW Uinta Clover Trifolium dasyphyllum UPL Water Birch Betula occidentalis FACW Torrey's Saltbush Atriplex torreyi FACU Umbell's Bittercress Cardamine umbellata FACW Water Horsetail Equisetum fluviatile OBL Torrey's Sedge Carex torreyi FAC Umbrella Bulrush Scirpus diffusus FACW Water Howellwort Howellia aquatilis OBL Torrey's Surf-Grass Phyllospadix torreyi OBL Umbrella Starwort Stellaria umbellata FACW Water Lobelia Lobelia dortmanna OBL Tower Larkspur Delphinium glaucum FACW Under-Green Willow Salix commutata OBL Water Manna Grass Glyceria fluitans OBL Towering Jacob's-Ladder Polemonium foliosissimum FAC Upland Bent Agrostis perennans FAC Water Mint Mentha aquatica FACW Tracy's Sundew Drosera tracyi OBL Upland Cotton Gossypium hirsutum UPL Water Pygmyweed Crassula aquatica OBL Tracy's Thistle Cirsium tracyi FACU Upland Larkspur Delphinium nuttallii FACU Water Smartweed Persicaria amphibia OBL Trailing Black Currant Ribes laxiflorum FACU Upright Blue Beardtongue Penstemon virgatus FACU Water Whorl Grass Catabrosa aquatica OBL Trailing Creeping-Cedar Diphasiastrum complanatum FAC Upright Burrhead Echinodorus berteroi OBL Watercress Nasturtium officinale OBL Trailing Fleabane Erigeron flagellaris FACU Upright Yellow Wood-Sorrel Oxalis stricta FACU Waterfall False Buttercup Kumlienia hystricula OBL Trailing Fuzzy-Bean Strophostyles helvola FACU Uruguayan Pampas Grass Cortaderia jubata FACU Water-Grass Bulbostylis barbata FACU Trailing Pearlwort Sagina decumbens FACU Utah Service-Berry Amelanchier utahensis FACU Water-Lettuce Pistia stratiotes OBL Transparent Milk-Vetch Astragalus diaphanus FACU Utah Swampfire Sarcocornia utahensis OBL Watermelon Citrullus lanatus UPL Trans-Pecos Amaranth Amaranthus obcordatus FACU Vahl's Fimbry Fimbristylis vahlii FACW Water-Plantain Buttercup Ranunculus alismifolius FACW Trans-Pecos Cliffbrake Pellaea ternifolia FACU Valamuerto Senna pendula FAC Water-Purslane Didiplis diandra OBL Trans-Pecos Mouse-Ear Chickweed Valley Arrowhead Sagittaria sanfordii OBL Watershield Brasenia schreberi OBL Cerastium axillare FACU Valley Grape Vitis girdiana FAC Water-Spangles Salvinia minima OBL Trans-Pecos Sea-Lavender Limonium limbatum FACW Valley Mayweed Matricaria occidentalis FACW Watersprite Ceratopteris thalictroides OBL Trans-Pecos Sunflower Helianthus paradoxus FACW Valley Oak Quercus lobata FACU Waterthread Potamogeton diversifolius OBL Tree Sea-Lavender Limonium brassicifolium FAC Valley Redstem Ammannia coccinea OBL Water-Thyme Hydrilla verticillata OBL Tree Tobacco Nicotiana glauca FAC Valley Sedge Carex vallicola FAC Watson's Amaranth Amaranthus watsonii FACW Tree-Marigold Tithonia diversifolia FACU Van Houtte's Columbine Aquilegia eximia OBL Watson's Saltbush Atriplex watsonii FACW Tree-of-Heaven Ailanthus altissima FACU Variable Flat Sedge Cyperus difformis OBL Wavy Waternymph Najas flexilis OBL Triangle-Lobe Moonwort Botrychium ascendens FAC Variable Jimmyweed Isocoma menziesii FAC Wavy-Leaf Sea-Lavender Limonium sinuatum FACW Triangular-Valved Dock Rumex triangulivalvis FACW Variable-Leaf Scorpion-Weed Phacelia heterophylla FACU Wavy-Leaf Thistle Cirsium undulatum FACU Tricolor Monkey-Flower Mimulus tricolor OBL Variable-Leaf Sunflower Helianthus heterophyllus OBL Wavy-Stem Popcorn-Flower Plagiobothrys undulatus OBL Wawawai Wild Rye Elymus wawawaiensis FACU Western Willow dock Rumex hesperius FACW Whortle-Berry Vaccinium myrtillus FACU Wax-Mallow Malvaviscus arboreus FACU Western-Wheat Grass Pascopyrum smithii FAC Wild Balsam-Apple Echinopepon wrightii FAC Waxy Coneflower Rudbeckia glaucescens FACW Wheat Sedge Carex atherodes OBL Wild Black Currant Ribes americanum FACW Waxy Manna Grass Glyceria declinata FACW Whiplash Dewberry Rubus flagellaris FACU Wild Blue Lettuce Lactuca biennis FAC Waxy Rush-Pea Hoffmannseggia glauca FACU Whisk Fern Psilotum nudum FACW Wild Chives Allium schoenoprasum FACW Waxy-Leaf Meadow-Rue Thalictrum revolutum FACU White Adder's-Mouth Orchid Malaxis monophyllos FACW Wild Cucumber Echinocystis lobata FACU Weak-Stem Groundsel Packera debilis FACW White Alder Alnus rhombifolia FACW Wild Leadwort Plumbago zeylanica FAC Wedgeleaf Phyla cuneifolia FAC White Arctic Mountain-Heather Cassiope tetragona FACU Wild Sarsaparilla Aralia nudicaulis FACU Wedge-Leaf Orache Atriplex truncata FACU White Ash Fraxinus americana FACU Wild Tantan Desmanthus virgatus FACU Wedge-Leaf Saxifrage Saxifraga adscendens FACW White Beak Sedge Rhynchospora alba OBL Wilkins' Bellflower Campanula wilkinsiana FACW Wedge-Leaf Woodbeauty Drymocallis cuneifolia FAC White Bedstraw Galium mollugo FACU Willamette Calico-Flower Downingia willamettensis OBL Welsh Mudwort Limosella australis OBL White Catchfly Silene menziesii FAC Willow Dock Rumex salicifolius FACW Welsh's Bugseed Corispermum welshii FACU White Checkerbloom Sidalcea candida FACW Willow Hawthorn Crataegus saligna FAC Welsh's Saltbush Atriplex welshii FACU White Clover Trifolium repens FACU Willow-Leaf American-Aster Symphyotrichum praealtum OBL West Indian Beak Sedge Rhynchospora brachychaeta FACW White Coil-Beak Lousewort Pedicularis contorta FACU Willow-Leaf Lettuce Lactuca saligna UPL West Indian Shrub-Verbena Lantana urticoides FACU White Colicroot Aletris farinosa FAC Willowy Mountainbalm Monardella viminea FACU Western American-Aster Symphyotrichum ascendens FAC White Cotton-Grass Eriophorum scheuchzeri OBL Winaha Currant Ribes wolfii FAC Western Arborvitae Thuja plicata FAC White Crane's-Bill Geranium richardsonii FACU Wine Raspberry Rubus phoenicolasius FACU Western Azalea Rhododendron occidentale FAC White Doll's Daisy Boltonia asteroides OBL Wing-Angle Loosestrife Lythrum alatum OBL Western Bottle-Brush Grass Elymus elymoides FACU White Fairy-Poppy Meconella oregana FAC Winged Dock Rumex spiralis FAC Western Buttercup Ranunculus occidentalis FAC White Fluff Grass Tridens albescens FACU Winged Sumac Rhus copallinum FACU Western Canada Goldenrod Solidago lepida FAC White Grass Leersia virginica FACW Winged Water-Starwort Callitriche marginata OBL Western Coneflower Rudbeckia occidentalis FAC White Heath American-Aster Symphyotrichum ericoides FAC Winged-Pigweed Cycloloma atriplicifolium FACU Western Cowbane Oxypolis occidentalis OBL White Horehound Marrubium vulgare FACU Wing-Leaf Soapberry Sapindus saponaria FACU Western Dock Rumex occidentalis FACW White Leadtree Leucaena leucocephala FACU Wing-Pod Purslane Portulaca umbraticola FACU Western False Asphodel Triantha occidentalis FACW White Marsh-Marigold Caltha leptosepala OBL Wing-Stem Monkey-Flower Mimulus alsinoides OBL Western False Deathcamas Anticlea occidentalis FACW White Meadowfoam Limnanthes alba FACW Winter Bent Agrostis hyemalis FACW Western False Dragonhead Physostegia parviflora FACW White Moth Mullein Verbascum blattaria UPL Wire-Stem Muhly Muhlenbergia frondosa FACW Western Goldentop Euthamia occidentalis FACW White Mountain Clover Trifolium neurophyllum FACW Wiry Knotweed Polygonum majus FACU Western Grasswort Lilaeopsis occidentalis OBL White Mulberry Morus alba FACU Wiry Panic Grass Panicum flexile FAC Western Halfchaff Sedge Lipocarpha occidentalis FACW White Oldfield American-Aster Symphyotrichum pilosum FACU Wood Lily Lilium philadelphicum FAC Western Hemlock Tsuga heterophylla FACU White Panicled American-Aster Symphyotrichum lanceolatum OBL Woodland Bittercress Cardamine flexuosa FACU Western Inflated Sedge Carex exsiccata OBL White River Coraldrops Besseya plantaginea FAC Woodland Buttercup Ranunculus uncinatus FAC Western Jacob's-Ladder Polemonium occidentale FACW White Rush-Lily Hastingsia alba OBL Woodland Forget-Me-Not Myosotis sylvatica FACU Western Labrador-Tea Rhododendron columbianum FACW White Sagebrush Artemisia ludoviciana FACU Woodland Grooveburr Agrimonia striata FACU Western Ladies'-Tresses Spiranthes porrifolia FACW White Seablush Plectritis macrocera FACU Woodland Horsetail Equisetum sylvaticum FAC Western Lady Fern Athyrium cyclosorum FAC White Shootingstar Dodecatheon dentatum FACW Woodland Muhly Muhlenbergia sylvatica FACW Western Larch Larix occidentalis FACU White Spike-Rush Eleocharis albida OBL Woodland Ragwort Senecio sylvaticus UPL Western Leatherwood Dirca occidentalis FAC White Spruce Picea glauca FAC Woodland Saxifrage Saxifraga mertensiana FACW Western Marsh Cudweed Gnaphalium palustre FACW White Vervain Verbena urticifolia FAC Woodland Strawberry Fragaria vesca UPL Western Meadow-Rue Thalictrum occidentale FACU White Walnut Juglans cinerea FACU Woodrush Sedge Carex luzulina OBL Western Moonwort Botrychium hesperium FACU White Water-Crowfoot Ranunculus aquatilis OBL Woods' Rose Rosa woodsii FACU Western Moss-Heather Cassiope mertensiana FACU White Willow Salix alba FACW Woody Saltwort Salicornia depressa OBL Western Pearlflower Heterocodon rariflorum FACW Whitecrown Holozonia filipes FACU Woolly Fleabane Erigeron lanatus FACU Western Poison Ivy Toxicodendron rydbergii FACU White-Edge Flat Sedge Cyperus flavicomus FAC Woolly Hawkweed Hieracium triste FACU Western Quillwort Isoetes occidentalis OBL White-Flower Pincushion-Plant Navarretia leucocephala OBL Woolly Meadowfoam Limnanthes floccosa OBL Western Rock-Jasmine Androsace occidentalis FACU White-Flower Willowherb Epilobium lactiflorum FACW Woolly Sedge Carex pellita OBL Western Rough Sedge Carex senta OBL White-Margin Knotweed Polygonum polygaloides FACW Woolly Wild Sensitive-Plant Senna hirsuta FACU Western Rush Juncus occidentalis FACW White-Mouth Dayflower Commelina erecta FACU Woolly-Breeches Amsinckia spectabilis FACU Western Seepweed Suaeda occidentalis FACW White-Mustard Sinapis alba FAC Woolly-Fruit Sedge Carex lasiocarpa OBL Western Snowberry Symphoricarpos occidentalis FAC White-Ray Mule's-Ears Wyethia helianthoides FACW Woolly-Head Clover Trifolium eriocephalum FAC Western Starflower Trientalis latifolia FAC Whitestar Ipomoea lacunosa FACW Worm-Seed Wallflower Erysimum cheiranthoides FACU Western Sweetshrub Calycanthus occidentalis FAC White-Stem Gooseberry Ribes inerme FAC Wright's Dropseed Sporobolus wrightii FAC Western Teaberry Gaultheria ovatifolia FAC White-Stem Hedge-Nettle Stachys albens OBL Wright's Dwarf-Gentian Gentianella wrightii OBL Western Thimble-Berry Rubus parviflorus FAC White-Stem Pondweed Potamogeton praelongus OBL Wright's Eryngo Eryngium heterophyllum FACW Western Trillium Trillium ovatum FACU White-Stem Raspberry Rubus leucodermis FACU Wright's False Willow Baccharis wrightii FACU Western Turkeybeard Xerophyllum tenax FACU White-Tip Clover Trifolium variegatum FAC Wright's Muhly Muhlenbergia wrightii FACU Western Umbrella Sedge Fuirena simplex OBL White-Woolly Twintip Stemodia durantifolia OBL Wright's Rabbit-Tobacco Pseudognaphalium canescens FACU Western Vervain Verbena lasiostachys FAC Whitish Gentian Gentiana algida FACW Wright's Spiderwort Tradescantia wrightii FACW Western Wahoo Euonymus occidentalis FACW Whorled Locoweed Oxytropis splendens FAC Wright's Thistle Cirsium wrightii OBL Western Water-Hemlock Cicuta douglasii OBL Whorled Marsh-Pennywort Hydrocotyle verticillata OBL Wrinkled Rush Juncus rugulosus OBL Western Water-Milfoil Myriophyllum hippuroides OBL Whorled Milkweed Asclepias verticillata FACU Wych Elm Ulmus glabra FACU Western Waterweed Elodea nuttallii OBL Whorled Milkwort Polygala verticillata FACU Yard Knotweed Polygonum aviculare FAC Western White Pine Pinus monticola FACU Whorled Water-Milfoil Myriophyllum verticillatum OBL Yaupon Black-Senna Seymeria cassioides FAC Yellow Avalanche-Lily Erythronium grandiflorum FACU Yellow Avens Geum aleppicum FAC Yellow Beeplant Peritoma lutea FACU Yellow Blanket-Flower Gaillardia flava FACU Yellow Bristle Grass Setaria pumila FAC Yellow Coralroot Corallorhiza trifida FAC Yellow Creeping Monkey-Flower Mimulus primuloides FACW Yellow Flat Sedge Cyperus flavescens OBL Yellow Floatingheart Nymphoides peltata OBL Yellow Glandweed Parentucellia viscosa FAC Yellow Indian Grass Sorghastrum nutans FACU Yellow Lady's-Slipper Cypripedium parviflorum FACW Yellow Marsh Saxifrage Saxifraga hirculus OBL Yellow Marsh-Marigold Caltha palustris OBL Yellow Mountain-Avens Dryas drummondii FACU Yellow Mountain-Heath Phyllodoce glanduliflora FACU Yellow Pepperwort Lepidium flavum UPL Yellow Pincushion-Plant Navarretia breweri FAC Yellow Scorpion-Grass Myosotis discolor FAC Yellow Spike-Rush Eleocharis flavescens OBL Yellow Spinecape Goodmania luteola FACW Yellow Sweet-Clover Melilotus officinalis FACU Yellow Trumpetbush Tecoma stans UPL Yellow Wide-Lip Orchid Liparis loeselii FACW Yellow Willow Salix lutea OBL Yellow Willowherb Epilobium luteum FACW Yellow-and-White Monkey-Flower Mimulus bicolor FACU Yellowdicks Helenium amarum FACU Yellow-Dot Saxifrage Saxifraga vespertina FACU Yellow-Flower Knotweed Polygonum ramosissimum FAC Yellow-Green Sedge Carex flava OBL Yellow-Lip Pansy Monkey-Flower Mimulus pulchellus FACW Yellow-Ray Goldfields Lasthenia glabrata FACW Yellow-Seed False Pimpernel Lindernia dubia OBL Yellow-Skunk-Cabbage Lysichiton americanus OBL Yerba-Mansa Anemopsis californica OBL Yew-Leaf Willow Salix exilifolia FACW Yosemite Annual-Tarweed Jensia yosemitana FACU Yosemite Bog Orchid Platanthera yosemitensis FACW Yosemite Dwarf Rush Juncus triformis FACW Yosemite Leafless-Bulrush Trichophorum clementis FAC Yosemite Sedge Carex sartwelliana OBL Yosemite Woodbeauty Drymocallis hansenii FAC Yuba Pass Willowherb Epilobium howellii FACW Zigzag Bladderwort Utricularia subulata OBL Zigzag Knotweed Polygonum minimum FACU Zizotes Milkweed Asclepias oenotheroides FACU