REGION - NWPL 2016 FINAL RATINGS User Notes: 1) 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 balsamea Balsam Fir FAC Agrostis exarata Spiked Bent FACW Amaranthus greggii Josiah Amaranth FAC Abutilon theophrasti Velvetleaf UPL Agrostis gigantea Black Bent FACW Amaranthus obcordatus Trans-Pecos Amaranth FACU Acalypha gracilens Slender Three--Mercury FAC Agrostis hyemalis Winter Bent FACW Amaranthus palmeri Careless Weed FACU Acalypha poiretii Poiret's Copperleaf FACU Agrostis idahoensis Bent FACW Amaranthus retroflexus Red-Root FACU Acalypha rhomboidea Common Three-Seed-Mercury FACU Agrostis mertensii Northern Bent FACU Amaranthus spinosus Spiny Amaranth FACU Acalypha virginica Virginia Three-Seed-Mercury FACU Agrostis perennans Upland Bent FAC Amaranthus tuberculatus Rough- Amaranth FAC tetragonus Triangle FACU Agrostis scabra Rough Bent FAC Amaranthus viridis Slender Amaranth FAC Acer glabrum Rocky Mountain FAC Agrostis stolonifera Spreading Bent FACW Ambrosia artemisiifolia Annual Ragweed FACU Acer grandidentatum Canyon Maple FAC Ailanthus altissima -of-Heaven FACU Ambrosia grayi Woolly- Burr-Ragweed FAC Acer negundo Ash-Leaf Maple FAC Aira caryophyllea Common Silver-Hair Grass FACU Ambrosia monogyra Needle-Leaf Burrobush FACU Acer platanoides Norway Maple UPL Albizia lebbeck Woman's-Tongue UPL Ambrosia psilostachya Perennial Ragweed FACU Acer rubrum Red Maple FAC Aletris aurea Golden Colicroot FACW Ambrosia trifida Great Ragweed FAC Acer saccharinum Silver Maple FAC Aletris farinosa White Colicroot FAC Amelanchier alnifolia Saskatoon Service-Berry FACU Sugar Maple UPL Alhagi maurorum Camelthorn FAC Amelanchier arborea Downy Service-Berry FACU Acer spicatum Mountain Maple FACU Aliciella pinnatifida Sticky Cheat Gily- FAC Amelanchier intermedia Intermediate Service-Berry FACW Common Yarrow FACU Alisma gramineum Narrow-Leaf Water-Plantain OBL Amelanchier spicata Running Service-Berry FACU Achillea ptarmica Pearl Yarrow FACU Alisma subcordatum American Water-Plantain OBL Amelanchier utahensis Service-Berry FAC hymenoides Indian Rice Grass FACU Alisma triviale Northern Water-Plantain OBL Ammannia auriculata Eared Redstem OBL Achnatherum nelsonii Nelson's Rice Grass UPL Allenrolfea occidentalis Iodinebush FACW Ammannia coccinea Valley Redstem OBL Richardson's Rice Grass FACU Alliaria petiolata - FACU Ammannia latifolia Pink Redstem OBL Achyranthes aspera Devil's-Horsewhip UPL bisceptrum Aspen FACU Ammannia robusta Grand Redstem OBL Acmella repens Opposite-Leaf Spotflower FACW Meadow Garlic FACU Ammoselinum butleri Butler's Sand- FAC Acmispon americanus American Deerweed FACU Nodding Onion UPL Amorpha fruticosa False Indigo-Bush FACW Aconitum columbianum Columbian Monkshood FACW Allium geyeri Geyer's Onion FACU Amorpha nana Fragrant Indigo-Bush UPL Acorus americanus Several-Vein Sweetflag OBL Allium schoenoprasum Wild FACU Amorpha paniculata Panicled Indigo-Bush FACW Acorus calamus Single-Vein Sweetflag OBL Ramp FACU Amorpha roemeriana Roemer's Indigo-Bush FACU Actaea rubra Red Baneberry FACU Crow Garlic FACU Ampelopsis arborea Peppervine FAC Adiantum aleuticum Aleutian Maidenhair FAC Allolepis texana - FAC Ampelopsis cordata Heart-Leaf Peppervine FAC Adiantum capillus-veneris Southern Maidenhair FACW Almutaster pauciflorus Marsh-Aster FACW Amphicarpaea bracteata American Hog-Peanut FACU Adiantum pedatum Northern Maidenhair FAC Alnus glutinosa European Alder FACW Amsonia tabernaemontana Eastern Bluestar FACW Adiantum tricholepis Fuzzy Maidenhair FAC Alnus incana Speckled Alder FACW Anaphalis margaritacea Pearly-Everlasting FACU Adoxa moschatellina Muskroot FAC Alnus maritima Seaside Alder OBL Andromeda polifolia Bog- OBL Aeschynomene indica Indian Joint-Vetch FACW Alnus oblongifolia Alder FACW Andropogon gerardii Big Bluestem FACU Aesculus glabra Ohio Buckeye FAC Alnus serrulata Brookside Alder OBL Andropogon glomeratus Bushy Bluestem FACW Aesculus pavia Red Buckeye FAC Alnus viridis Sitka Alder FAC Andropogon gyrans Elliott's Bluestem FACU Agalinis aspera Tall False Foxglove FACU Alocasia macrorrhizos Giant Taro FACW Andropogon hirsutior FACW Agalinis calycina Leoncita False Foxglove OBL Alopecurus aequalis Short-Awn Meadow-Foxtail OBL Andropogon ternarius Split-Beard Bluestem FACU Agalinis fasciculata Beach False Foxglove FAC Alopecurus arundinaceus Creeping Meadow-Foxtail FACW Andropogon virginicus Broom-Sedge FACU Agalinis heterophylla Prairie False Foxglove FAC Alopecurus carolinianus Tufted Meadow-Foxtail FACW Androsace chamaejasme Sweet-Flower Rock-Jasmine FACU Agalinis maritima Saltmarsh False Foxglove OBL Alopecurus geniculatus Marsh Meadow-Foxtail OBL Androsace occidentalis Western Rock-Jasmine FACU Agalinis paupercula Small-Flower False Foxglove FAC Alopecurus magellanicus Alpine Meadow-Foxtail FACW Androsace septentrionalis Pygmy-Flower Rock-Jasmine FACU Agalinis purpurea Purple False Foxglove FACW Alopecurus myosuroides Slender Meadow-Foxtail FACW Anemone canadensis Round-Leaf Thimbleweed FACW Skinner's False Foxglove FACU Alopecurus pratensis Field Meadow-Foxtail FACW Anemone narcissiflora Narcissus-Flower Thimbleweed FAC Agalinis tenuifolia Slender-Leaf False Foxglove FAC Alophia drummondii Propeller-Flower FACU Anemone parviflora Small-Flower Thimbleweed FACU Agastache nepetoides Yellow Giant-Hyssop FACU Alternanthera ficoidea Sanguinaria FACU Anemone quinquefolia Nightcaps FAC Agave americana American Century-Plant UPL Alternanthera paronychioides Smooth Joyweed OBL Anemone virginiana Tall Thimbleweed FACU Ageratina altissima White Snakeroot UPL Alternanthera philoxeroides Alligator-Weed OBL Anemopsis californica Yerba-Mansa FACW Ageratum houstonianum Bluemink FACU Althaea officinalis Common Marsh-Mallow FACW Angelica ampla Giant Angelica FACW Agoseris X agrestis UPL Amaranthus X texensis FACW Angelica pinnata Small-Leaf Angelica FACW Agoseris glauca Pale Goat-Chicory FACU Amaranthus acanthochiton Greenstripe FACU Anoda cristata Crested Anoda FAC Agoseris parviflora Small-Flower Goat-Chicory UPL Amaranthus albus Tumbleweed FACU Antennaria neglecta Field Pussytoes FACU Agrimonia gryposepala Tall Hairy Grooveburr FAC Amaranthus arenicola Sandhill Amaranth FACU Antennaria umbrinella Brown-Bract Pussytoes FACU Agrimonia parviflora Harvestlice FACW Amaranthus australis Southern Amaranth OBL Anthemis cotula Stinking Chamomile FACU Agrimonia rostellata Beaked Grooveburr FAC Amaranthus blitoides Mat Amaranth FAC Anthenantia rufa Purple Silkyscale FACU Agrimonia striata Woodland Grooveburr FACU Amaranthus blitum Purple Amaranth FACU Anthoxanthum hirtum Northern Sweet Vernal Grass FACW Agrostis capillaris Colonial Bent FAC Amaranthus californicus Amaranth FACW Anthoxanthum odoratum Large Sweet Vernal Grass FAC Agrostis elliottiana Elliott's Bent FACU Amaranthus crassipes Spreading Amaranth FAC Anticlea elegans Mountain False Deathcamas FACW Anticlea occidentalis Western False Deathcamas FACW texana Texas Milkweed FACU European Barberry UPL Anticlea virescens Green False Deathcamas FAC Asclepias variegata Red-Ring Milkweed FACU Berchemia scandens Alabama Supplejack FAC Antigonon leptopus Queen's-Jewels FAC Asclepias verticillata Whorled Milkweed FACU Bergia texana Texas Bergia OBL Apios americana Groundnut FAC Asimina parviflora Small-Flower Pawpaw FAC Berula erecta Cut-Leaf-Water-Parsnip OBL Aplectrum hyemale Adam-and-Eve FAC Asimina triloba Common Pawpaw FACU Besseya alpina Alpine Coraldrops FACW androsaemifolium Spreading Dogbane UPL Asparagus officinalis Asparagus FACU Besseya plantaginea White River Coraldrops FACW Apocynum cannabinum Indian- FAC Asperugo procumbens German-Madwort UPL Betula X purpusii OBL Aquilegia canadensis Red Columbine FAC Asplenium adiantum-nigrum Black Spleenwort FACU Betula X sandbergii OBL Aquilegia chrysantha Golden Columbine FACW Asplenium platyneuron Ebony Spleenwort FACU Betula alleghaniensis Yellow Birch FACU Aquilegia longissima Long-Spur Columbine FACW Asplenium trichomanes Maidenhair Spleenwort FAC Betula cordifolia Heart-Leaf Paper Birch FACU Arabis eschscholtziana Pacific-Coast Eared Rockcress FACU Astragalus agrestis Cock's-Head FACU Betula glandulosa Resin Birch OBL Arabis pycnocarpa Hairy Eared Rockcress FACU Astragalus alpinus Alpine Milk-Vetch FAC Betula nigra River Birch FACW Aralia nudicaulis Wild Sarsaparilla FACU Astragalus americanus American Milk-Vetch FAC Betula occidentalis Water Birch FACW Aralia racemosa American Spikenard FACU Astragalus argophyllus Silver-Leaf Milk-Vetch FACW Betula papyrifera Paper Birch FACU Aralia spinosa Devil's-Walkingstick FACU Astragalus bodinii Bodin's Milk-Vetch FAC Betula pendula European Weeping Birch FACU Arctium minus Lesser Burrdock FACU Astragalus canadensis Canadian Milk-Vetch FAC Betula pubescens Downy Birch FACW Arctostaphylos uva-ursi Red Bearberry UPL Astragalus diphysus Speckle-Pod Milk-Vetch UPL Betula pumila Bog Birch OBL Arenaria lanuginosa Spreading Sandwort FACU Astragalus eucosmus Elegant Milk-Vetch FACU amplissima Vancouver Island Beggarticks FACW Arenaria serpyllifolia -Leaf Sandwort FACU Astragalus lentiginosus Freckled Milk-Vetch FACU Bidens aristosa Bearded Beggarticks FACW Arethusa bulbosa Dragon's-Mouth OBL Astragalus leptaleus Park Milk-Vetch OBL Bidens beckii Beck's Water-Marigold OBL Arisaema dracontium Greendragon FACW Astragalus neglectus Cooper's Milk-Vetch UPL Bidens bigelovii Bigelow's Beggarticks FACW Arisaema triphyllum Jack-in-the-Pulpit FAC Astragalus robbinsii Robbins' Milk-Vetch FAC Bidens bipinnata Spanish-Needles FACU Aristida dichotoma Church-Mouse Three-Awn FACU Athyrium americanum American Alpine Lady Fern FAC Bidens cernua Nodding Burr-Marigold OBL Aristida longespica Red Three-Awn FACU Athyrium angustum Northern Lady Fern FAC Bidens discoidea Small Beggarticks FACW Aristida purpurascens Arrow-Feather Three-Awn UPL Athyrium asplenioides Southern Lady Fern FAC Bidens frondosa Devil's-Pitchfork FACW Aristida spiciformis Bottlebrush Three-Awn FAC Athyrium cyclosorum Western Lady Fern FAC Bidens laevis Smooth Beggarticks OBL Arnica chamissonis Leafy Leopardbane FACW Atriplex argentea Silverscale FAC Bidens leptocephala Few-Flower Beggarticks FACW Arnica fulgens Shining Leopardbane UPL Atriplex dioica Saline Saltbush FAC Bidens mitis Small-Fruit Beggarticks OBL Arnica lanceolata Lance-Leaf Leopardbane FAC Atriplex glabriuscula Scotland Orache FACU Bidens pilosa Hairy Beggarticks FACW Arnica latifolia Daffodil Leopardbane FAC Atriplex hortensis Garden Orache FAC Bidens tenuisecta Slim-Lobe Beggarticks FACW Arnica longifolia Spear-Leaf Leopardbane FACW Atriplex mucronata Crested Saltbush FAC Bidens trichosperma Crowned Beggarticks OBL Arnica mollis Cordilleran Leopardbane FAC Atriplex patula Halberd-Leaf Orache FACW Bidens tripartita Three-Lobe Beggarticks FACW Arnica ovata Sticky-Leaf Leopardbane FACW Atriplex prostrata Hastate Orache FACW Bidens vulgata Tall Beggarticks FAC Arnoglossum ovatum Egg-Leaf Indian-Plantain FAC Atriplex rosea Tumbling Orache FACU Bigelowia nuttallii Nuttall's Rayless-Goldenrod FACU Arnoglossum plantagineum Groove-Stem Indian-Plantain FAC Atriplex semibaccata Australian Saltbush FAC Bignonia capreolata Crossvine FAC Aronia arbutifolia Red Chokeberry FACW Atriplex tridentata Basin Saltbush FACW Bistorta bistortoides American Bistort OBL Aronia melanocarpa Black Chokeberry OBL Atriplex truncata Wedge-Leaf Orache FAC Bistorta vivipara Serpent-Grass FACW Arrhenatherum elatius Tall Oat Grass FACU Avena sativa Oat FACU Blechnum occidentale Hammock Fern FAC Artemisia annua Annual Wormwood FACU Avicennia germinans Black Mangrove OBL Blephilia hirsuta Hairy Pagoda-Plant FACU Artemisia biennis Biennial Wormwood FACU Axonopus compressus Broad-Leaf Carpet Grass FACW Blutaparon vermiculare Bayflower FACW Artemisia campestris Pacific Wormwood UPL Axonopus fissifolius Narrow-Leaf Carpet Grass FAC Boechera collinsii UPL Artemisia cana Coaltown Sagebrush FACU Axonopus furcatus Big Carpet Grass OBL Boechera dentata Short's Rockcress UPL Artemisia ludoviciana White Sagebrush UPL Azolla microphylla Mexican Mosquito Fern OBL Boechera divaricarpa FACU Artemisia norvegica Boreal Sagebrush FACW Baccharis halimifolia Groundseltree FAC Boechera grahamii Boivin's Rockcress FACU Artemisia tilesii Tilesius' Wormwood FACU Baccharis neglecta Roosevelt-Weed FAC Boechera lemmonii Soldier Rockcress UPL Artemisia vulgaris Common Wormwood UPL Baccharis salicifolia Mule's-Fat FACW Boechera stricta Canadian Rockcress FACU Arthraxon hispidus Small Carp Grass FACU Baccharis salicina Great Plains False Willow FAC Boehmeria cylindrica Small-Spike False Nettle FACW Arundinaria gigantea Giant Cane FACW Baccharis sarothroides Rosinbush FAC Boerhavia erecta Erect Spiderling UPL Arundo donax Giant-Reed FAC Baccharis wrightii Wright's False Willow FACU asteroides White Doll's Daisy FACW Asarum canadense Canadian Wild FACU Bacopa caroliniana Blue Water-Hyssop OBL Boltonia diffusa Small-Head Doll's Daisy FACW Asclepias curassavica Bloodflower FAC Bacopa monnieri -of-Grace OBL Borrichia frutescens Bushy Seaside-Tansy FACW Asclepias exaltata Poke Milkweed FAC Bacopa repens Creeping Water-Hyssop OBL Bothriochloa barbinodis Cane Beard Grass FACU Asclepias incarnata Swamp Milkweed FACW Bacopa rotundifolia Disk Water-Hyssop OBL Bothriochloa bladhii Australian Beard Grass FACU Asclepias longifolia Long-Leaf Milkweed FAC Baptisia alba White Wild Indigo FACU Botrychium ascendens Triangle-Lobe Moonwort FAC Asclepias oenotheroides Zizotes Milkweed FACU Baptisia australis Blue Wild Indigo UPL Botrychium hesperium Western Moonwort FACU Asclepias perennis Aquatic Milkweed OBL Barbarea orthoceras American Yellow-Rocket OBL Botrychium lanceolatum Lance-Leaf Moonwort FACW Asclepias prostrata Prostrate Milkweed FAC Barbarea vulgaris Garden Yellow-Rocket FACU Botrychium lunaria Common Moonwort FAC Asclepias pumila Low Milkweed UPL Barkleyanthus salicifolius Barkley's-Ragwort FAC Botrychium matricariifolium Daisy-Leaf Moonwort FACU Asclepias purpurascens Purple Milkweed FACU Bartonia paniculata Twining Screwstem OBL Botrychium pinnatum Northeastern Moonwort UPL Asclepias rubra Red Milkweed OBL Bassia hyssopifolia Five-Horn Smotherweed FACU Botrychium simplex Least Moonwort FAC Asclepias speciosa Showy Milkweed FAC Bassia scoparia Mexican-Fireweed FACU Botrypus virginianus Rattlesnake Fern FACU Asclepias subverticillata Horsetail Milkweed FACU Batis maritima Turtleweed OBL Bouteloua dactyloides Buffalo Grass FACU Asclepias sullivantii Prairie Milkweed FAC Beckmannia syzigachne American Slough Grass OBL Bowlesia incana Hoary Bowlesia FACU Asclepias syriaca Common Milkweed UPL Berberis thunbergii Japanese Barberry UPL Brachyelytrum erectum Bearded Shorthusk FACU Brasenia schreberi Watershield OBL Bluebell-of-Scotland FAC comosa Bearded Sedge OBL Chinese Mustard FACU Campanulastrum americanum American-Bellflower FAC Carex complanata Hirsute Sedge FAC Brassica rapa Rape UPL Campsis radicans Trumpet-Creeper FACU Carex concinna Low Northern Sedge FACU Braya glabella Smooth Northern-Rockcress FACU Canadanthus modestus -Aster FAC Carex conjuncta Soft Fox Sedge FAC Braya humilis Alpine Northern-Rockcress FACU Canavalia rosea Bay-Bean FAC Carex conoidea Open-Field Sedge FAC Brickellia californica California Brickellbush FACU Canna X generalis OBL Carex corrugata Prune-Fruit Sedge FACW Briza media Perennial Quaking Grass FAC Canna flaccida Bandanna-of-the- OBL Carex crawei Crawe's Sedge FACW Briza minor Lesser Quaking Grass FAC Canna indica Indian-Shot FACW Carex crawfordii Crawford's Sedge OBL Bromus arvensis Field Brome FACU Caperonia palustris Sacatrapo FACW Carex crebriflora Coastal-Plain Sedge OBL Bromus briziformis Rattlesnake Brome UPL Capraria biflora Goatweed FACW Carex crinita Fringed Sedge OBL Bromus ciliatus Fringed Brome FAC Capraria mexicana Mexican Goatweed FAC Carex cristatella Crested Sedge FACW Bromus hordeaceus Soft Brome UPL bursa-pastoris Shepherd's-Purse FACU Carex crus-corvi Raven-Foot Sedge OBL Bromus inermis Smooth Brome UPL Cardamine breweri Sierran Bittercress FACW Carex cryptolepis Northeastern Sedge OBL Bromus kalmii Kalm's Brome FACU Cardamine bulbosa Bulbous Bittercress OBL Carex davisii Davis' Sedge FAC Bromus latiglumis Early-Leaf Brome FACW Cardamine concatenata Cut-Leaf Toothwort FACU Carex debilis White-Edge Sedge OBL Bromus madritensis Compact Brome UPL Cardamine cordifolia Large Mountain Bittercress OBL Carex decomposita Cypress-Knee Sedge OBL Bromus pubescens Hairy Woodland Brome FACU Cardamine douglassii Limestone Bittercress FACW Carex deweyana Dewey's Sedge FACU Bromus richardsonii Richardson's Brome FACU Cardamine flexuosa Woodland Bittercress FACW Carex diandra Lesser Tussock Sedge OBL Bromus vulgaris Colombian Brome UPL Cardamine hirsuta Hairy Bittercress FAC Carex digitalis Slender Woodland Sedge UPL Broussonetia papyrifera Paper-Mulberry UPL Cardamine macrocarpa Large-Seed Bittercress FACW Carex disperma Soft-Leaf Sedge FACW Brunnichia ovata American Buckwheatvine FACW Cardamine oligosperma Little Western Bittercress FAC Carex douglasii Douglas' Sedge FAC Buchnera americana American Bluehearts FAC Cardamine parviflora Sand Bittercress FACW Carex eburnea Bristle-Leaf Sedge FACU Buchnera floridana Bluehearts FAC Cardamine pensylvanica Quaker Bittercress FACW Carex echinata Star Sedge OBL Bulbostylis capillaris Dense-Tuft Hair Sedge FACU Cardiospermum halicacabum Love-in-a-Puff FAC Carex egglestonii Eggleston's Sedge FACU Bulbostylis ciliatifolia Capillary Hair Sedge FAC Carduus nutans Nodding Plumeless-Thistle FACU Carex elynoides Black-Root Sedge FAC Bulbostylis funckii Funck's Hair Sedge FACW Carex X physocarpoides OBL Carex emoryi Emory's Sedge OBL Bulbostylis juncoides Rush Hair Sedge FACW Carex X subimpressa OBL Carex exilis Coastal Sedge OBL Burmannia biflora Northern Bluethread OBL Carex abscondita Thicket Sedge FAC Carex exsiccata Western Inflated Sedge OBL Burmannia capitata Southern Bluethread OBL Carex alata Broad-Wing Sedge OBL Carex festucacea Fescue Sedge FACW Butomus umbellatus Greater Flowering-Rush OBL Carex albicans White-Tinge Sedge FACU Carex fissa Hammock Sedge OBL Cabomba caroliniana Carolina Fanwort OBL Carex albolutescens Green-White Sedge FACW Carex fissuricola Cleft Sedge FACW Caesalpinia bonduc Yellow Nicker FACU Carex albonigra Black-and-White-Scale Sedge FAC Carex flaccosperma Thin-Fruit Sedge FACW Cakile geniculata Gulf Searocket FAC Carex alma Sturdy Sedge OBL Carex flava Yellow-Green Sedge OBL Cakile lanceolata Coastal Searocket FACW Carex alopecoidea Fox-Tail Sedge FACW Carex foenea Bronze-Head Oval Sedge UPL Calamagrostis canadensis Bluejoint FACW Carex amphibola Eastern Narrow-Leaf Sedge OBL Carex formosa Handsome Sedge FAC Calamagrostis scopulorum Ditch Reed Grass FAC Carex annectens Yellow-Fruit Sedge FACW Carex frankii Frank's Sedge OBL Calamagrostis stricta Slim-Stem Reed Grass FACW Carex aperta Columbian Sedge FACW Carex fuliginosa Short-Leaf Sedge FACW Calamovilfa arcuata Cumberland Sand-Reed OBL Carex aquatilis Leafy Tussock Sedge OBL Carex garberi Sedge FACW Calibrachoa parviflora Seaside-Petunia FACW Carex arkansana Arkansas Sedge FACU Carex glaucescens Southern Waxy Sedge OBL Calla palustris Water-Dragon OBL Carex atherodes Wheat Sedge OBL Carex glaucodea Blue Sedge FACW Callicarpa americana American Beauty-Berry FACU Carex athrostachya Slender-Beak Sedge FACW Carex gracillima Graceful Sedge FACW Callisia repens Creeping-Inchplant FACU Carex atlantica Prickly Bog Sedge OBL Carex granularis Limestone-Meadow Sedge OBL Callitriche hermaphroditica Autumn Water-Starwort OBL Carex atrosquama Lesser Black-Scale Sedge FACU Carex gravida Heavy Sedge FACW Callitriche heterophylla Greater Water-Starwort OBL Carex aurea Golden-Fruit Sedge OBL Carex grayi Gray's Sedge FACW Callitriche palustris Vernal Water-Starwort OBL Carex austrina Southern Sedge FACU Carex grisea Inflated Narrow-Leaf Sedge FACW Callitriche pedunculosa Nuttall's Water-Starwort FACW Carex basiantha Widow Sedge FACW Carex gynocrates Northern Bog Sedge OBL Callitriche peploides Matted Water-Starwort OBL Carex bebbii Bebb's Sedge OBL Carex hallii Sedge FAC Callitriche stagnalis Pond Water-Starwort OBL Carex bella Southwestern Showy Sedge FAC Carex haydeniana Hayden's Sedge FACU Callitriche stenoptera Narrow-Wing Water-Starwort OBL Carex bicknellii Bicknell's Sedge FACW Carex haydenii Cloud Sedge OBL Callitriche terrestris Terrestrial Water-Starwort FACW Carex blanda Eastern Woodland Sedge FAC Carex heteroneura Different-Nerve Sedge FACW Calopogon tuberosus Tuberous Grass-Pink OBL Carex bolanderi Bolander's Sedge FACW Carex hoodii Hood's Sedge UPL Caltha leptosepala White Marsh-Marigold OBL Carex brevior Short-Beak Sedge FAC Carex hyalina Tissue Sedge FACW Caltha palustris Yellow Marsh-Marigold OBL Carex brunnescens Brownish Sedge FAC Carex hyalinolepis Shoreline Sedge OBL Calycocarpum lyonii Cupseed FACW Carex bulbostylis False Hair Sedge FACW Carex hystericina Porcupine Sedge OBL Calypso bulbosa Fairy-Slipper Orchid FACW Carex bushii Bush's Sedge OBL Carex illota Small-Head Sedge FACW Calyptocarpus vialis Straggler Daisy FAC Carex buxbaumii Brown Bog Sedge OBL Carex incurviformis Coastal-Sand Sedge FAC Calyptridium roseum FACU Carex canescens Hoary Sedge OBL Carex infirminervia FAC Calystegia sepium Hedge False Bindweed FAC Carex capillaris Hair-Like Sedge FACW Carex interior Inland Sedge OBL Camassia scilloides Atlantic Camas FAC Carex capitata Capitate Sedge FACW Carex intumescens Greater Bladder Sedge OBL Camelina alyssum Madwort False Flax FACU Carex caroliniana Carolina Sedge OBL Carex jonesii Jones' Sedge FACW Camelina microcarpa Little-Pod False Flax UPL Carex castanea Chestnut-Color Sedge FACW Carex joorii Cypress-Swamp Sedge OBL Camelina sativa Gold-of-Pleasure FACU Carex cephalophora Oval-Leaf Sedge FACU Carex kelloggii Kellogg's Sedge OBL Campanula aparinoides Marsh Bellflower OBL Carex cherokeensis Cherokee Sedge FACW Carex lachenalii Arctic Hare-Foot Sedge OBL Campanula parryi Parry's Bellflower FAC Carex chordorrhiza Rope-Root Sedge OBL Carex lacustris Lakebank Sedge OBL Carex laeviconica Smooth-Cone Sedge OBL Carex rosea Rosy Sedge FACU Castilleja rhexiifolia Rosy Indian-Paintbrush FAC Carex laeviculmis Smooth-Stem Sedge FACW Carex rostrata Swollen Beaked Sedge OBL Castilleja septentrionalis Labrador Indian-Paintbrush FAC Carex lasiocarpa Woolly-Fruit Sedge OBL Carex rupestris Curly Sedge FACU Casuarina equisetifolia Beach She-Oak FACU Carex laxiflora Broad Loose-Flower Sedge FACU Carex sartwellii Sartwell's Sedge FACW Catabrosa aquatica Water Whorl Grass OBL Carex lenticularis Lakeshore Sedge OBL Carex saxatilis Russet Sedge OBL Catalpa bignonioides Southern Catalpa UPL Carex leporinella Sierran Hare Sedge FACW Carex scirpoidea Canadian Single-Spike Sedge FACU Catalpa speciosa Northern Catalpa FACU Carex leptalea Bristly-Stalk Sedge OBL Carex scoparia Pointed Broom Sedge FACW Catharanthus roseus Madagascar-Periwinkle UPL Carex leptonervia Nerveless Woodland Sedge FAC Carex scopulorum Holm's Rocky Mountain Sedge FACW Cayaponia quinqueloba Five-Lobe-Cucumber FAC Carex limosa Mud Sedge OBL Carex senta Western Rough Sedge OBL Celastrus orbiculatus Asian Bittersweet UPL Carex livida Livid Sedge OBL Carex siccata Dry-Spike Sedge UPL Celastrus scandens American Bittersweet UPL Carex longii Long's Sedge OBL Carex simulata Analogue Sedge OBL Celosia argentea Silver Cock's-Comb UPL Carex louisianica Sedge OBL Carex sparganioides Burr-Reed Sedge FAC Celtis laevigata Sugar-Berry FAC Carex lupuliformis False Hop Sedge OBL Carex spectabilis Northwestern Showy Sedge FACW Celtis occidentalis Common Hackberry FACU Carex lupulina Hop Sedge OBL Carex sprengelii Long-Beak Sedge FACU Celtis reticulata Net-Leaf Hackberry UPL Carex lurida Shallow Sedge OBL Carex squarrosa Squarrose Sedge FACW americanus Pearl-Millet FACU Carex luzulifolia Little-Leaf Sedge FACW Carex sterilis Dioecious Sedge OBL Cenchrus brownii Slim-Bristle Sandburr FACU Carex luzulina Woodrush Sedge OBL Carex stevenii Steven's Sedge FAC Cenchrus ciliaris Buffel Grass UPL Carex macloviana Falkland Island Sedge FACW Carex stipata Stalk-Grain Sedge OBL Cenchrus echinatus Southern Sandburr UPL Carex magellanica Boreal-Bog Sedge OBL Carex stricta Uptight Sedge OBL Cenchrus longispinus Innocent-Weed UPL Carex mckittrickensis Guadalupe Mountain Sedge FACW Carex styloflexa Bent Sedge OBL Cenchrus myosuroides Big Sandburr FACU Carex meadii Mead's Sedge FAC Carex suberecta Prairie Straw Sedge OBL Cenchrus polystachios Mission Grass FACU Carex media Sedge FACW Carex subfusca Rusty Sedge FACU Cenchrus purpureus Elephant Grass FAC Carex mertensii Mertens' Sedge FAC Carex swanii Swan's Sedge UPL Centaurea X moncktonii FACU Carex microdonta Little-Tooth Sedge OBL Carex sychnocephala Many-Head Sedge FACW Centaurea cyanus Garden Cornflower FACU Carex microglochin False Uncinia Sedge OBL Carex tenera Quill Sedge FACW Centaurea jacea Brown-Ray Knapweed FACU Carex micropoda Pyrenean Sedge FACU Carex tenuiflora Sparse-Flower Sedge OBL Centaurium pulchellum Branched Centaury FACU Carex microptera Small-Wing Sedge FAC Carex tetanica Rigid Sedge FACW Centaurium tenuiflorum Slender Centaury FACW Carex molesta Troublesome Sedge FACW Carex tetrastachya Britton's Sedge FACW Centella erecta Stiff Spadeleaf FACW Carex nardina Nard Sedge FACU Carex torreyi Torrey's Sedge UPL Cephalanthus occidentalis Common Buttonbush OBL Carex nebrascensis Nebraska Sedge OBL Carex torta Twisted Sedge FACW Cephalanthus salicifolius Mexican Buttonbush OBL Carex nelsonii Nelson's Sedge FAC Carex triangularis Eastern Fox Sedge OBL Cerastium arvense Field Mouse-Ear Chickweed FACU Carex neurophora Alpine Nerve Sedge FACW Carex tribuloides Blunt Broom Sedge OBL Cerastium axillare Trans-Pecos Mouse-Ear Chickweed Carex nigricans Black Alpine Sedge FACW Carex trichocarpa Hairy-Fruit Sedge OBL FAC Carex nigromarginata Black-Edge Sedge FAC Carex trisperma Three-Seed Sedge OBL Cerastium beeringianum Bering Sea Mouse-Ear Chickweed Carex normalis Greater Straw Sedge OBL Carex tuckermanii Tuckerman's Sedge OBL FAC Carex nova New Sedge FACW Carex typhina Cat-Tail Sedge OBL Cerastium brachypodum Short-Stalk Mouse-Ear Chickweed Carex oklahomensis Sedge FACW Carex utriculata Northwest Territory Sedge OBL FACU Carex oligosperma Few-Seed Sedge OBL Carex vaginata Sheathed Sedge OBL Cerastium fontanum Common Mouse-Ear Chickweed Carex opaca FACW Carex vallicola Valley Sedge FAC FACU Carex oxylepis Sharp-Scale Sedge OBL Carex vernacula Native Sedge FAC Cerastium glomeratum Sticky Mouse-Ear Chickweed FACU Carex ozarkana Ozark Sedge OBL Carex verrucosa Warty Sedge OBL Cerastium nutans Nodding Mouse-Ear Chickweed Carex pachystachya Thick-Head Sedge FAC Carex vesicaria Lesser Bladder Sedge OBL FAC Carex parryana Parry's Sedge FACW Carex viridula Little Green Sedge OBL Ceratophyllum demersum Coon's-Tail OBL Carex pauciflora Few-Flower Sedge OBL Carex vulpinoidea Common Fox Sedge FACW Ceratophyllum echinatum Spineless Hornwort OBL Carex paysonis Payson's Sedge FACU Carpinus caroliniana American Hornbeam FAC Ceratopteris thalictroides Watersprite OBL Carex pedunculata Long-Stalk Sedge OBL Cartrema americana Devilwood FAC Cercis canadensis Redbud UPL Carex pellita Woolly Sedge OBL Carum carvi UPL Cestrum diurnum Day Flowering-Jassamine UPL Carex pelocarpa Dusky-Seed Sedge FACU Carya aquatica Water Hickory OBL Cestrum nocturnum Night Flowering-Jassamine UPL Carex petasata Liddon Sedge UPL Carya cordiformis Bitter-Nut Hickory FACU Chaerophyllum procumbens Spreading FAC Carex phaeocephala Mountain Hare Sedge FACU Carya glabra Pignut Hickory FACU Chaerophyllum tainturieri Hairy-Fruit Chervil FAC Carex podocarpa Short-Stalk Sedge FAC Carya illinoinensis Pecan FAC Chamaecrista fasciculata Sleepingplant FACU Carex praeceptorum Teacher's Sedge OBL Carya laciniosa Shell-Bark Hickory FAC Chamaecrista nictitans Partridge-Pea FACU Carex praegracilis Clustered Field Sedge FACW Carya myristiciformis Hickory FACW Chamaecyparis lawsoniana Port Orford-Cedar FACU Carex prairea Prairie Sedge OBL Carya ovalis Red Hickory FACU Chamaedaphne calyculata Leatherleaf OBL Carex praticola Northern Meadow Sedge FAC Carya ovata Shag-Bark Hickory FACU Chamaenerion angustifolium Narrow-Leaf Fireweed FAC Carex preslii Presl's Sedge FACU Cassiope mertensiana Western Moss-Heather FACU Chasmanthium latifolium Indian Wood-Oats FACU Carex projecta Necklace Sedge FACW Cassiope tetragona White Arctic Mountain-Heather FACU Chasmanthium laxum Slender Wood-Oats FAC Carex pseudocyperus Cypress-Like Sedge OBL Castilleja coccinea Scarlet Indian-Paintbrush FACU Chasmanthium sessiliflorum Long-Leaf Wood-Oats FAC Carex radiata Eastern Star Sedge FAC Castilleja indivisa Entire-Leaf Indian-Paintbrush FAC Chelidonium majus Greater Celandine FACU Carex raynoldsii Raynolds' Sedge FACU Castilleja lineata Marsh-Meadow Indian-Paintbrush Chelone glabra White Turtlehead OBL Carex reniformis Kidney-Shape Sedge OBL FACW Chelone obliqua Red Turtlehead OBL Carex retroflexa Reflexed Sedge FACU Castilleja miniata Great Red Indian-Paintbrush FAC Chenopodium album Lamb's-Quarters FACU Carex retrorsa Retrorse Sedge OBL Castilleja minor Alkali Indian-Paintbrush OBL Chenopodium chenopodioides Low Goosefoot FACW Carex richardsonii Richardson's Sedge FAC Castilleja occidentalis Pale-Yellow Indian-Paintbrush FAC Chenopodium foliosum Leafy Goosefoot FACU Chenopodium fremontii Fremont's Goosefoot FACU FAC Corylus cornuta Beaked Hazelnut UPL Chenopodium glaucum Oak-Leaf Goosefoot FAC Clethra alnifolia Coastal Sweet-Pepperbush FACW Cosmos bipinnatus Garden Cosmos FACW Chenopodium leptophyllum Narrow-Leaf Goosefoot FACU Clinopodium arkansanum Limestone Wild FAC Cosmos parviflorus Southwestern Cosmos FAC Chenopodium murale Nettle-Leaf Goosefoot FACU Clinopodium brownei Browne's Wild Basil OBL Cosmos sulphureus Sulphur Cosmos UPL Chenopodium rubrum Red Goosefoot OBL Clintonia borealis Yellow Bluebead-Lily FAC Cotula australis Australian Water-Buttons FAC Chilopsis linearis Desert-Willow FACU Clitoria mariana Atlantic Pigeonwings FACU Crassula aquatica Water Pygmyweed OBL Chiococca alba West Indian Milkberry FACU Clitoria ternatea Asian Pigeonwings FACU Crassula connata Sand Pygmyweed OBL Chionanthus virginicus White Fringetree FACU Cocculus carolinus Carolina Coralbead FACU Crassula solieri Smooth-Seed Pygmyweed FACW Chionophila jamesii Rocky Mountain Snowlover FACU Coeloglossum viride Long-Bract Frog Orchid FACU Crataegus berberifolia Barberry Hawthorn FAC Chloracantha spinosa Mexican-Devilweed FACW Coelorachis cylindrica Carolina Joint-Tail Grass FAC Crataegus brachyacantha Blueberry Hawthorn FACW Chloris barbata Swollen Windmill Grass FACU Coelorachis rugosa Wrinkled Joint-Tail Grass FACW Crataegus crus-galli Cock-Spur Hawthorn FAC Chloris ciliata Fringed Windmill Grass UPL Coix lacryma-jobi Job's-Tears FACW Crataegus douglasii Black Hawthorn FAC Chloris gayana Rhodes Grass FACU Coleataenia anceps Beaked Cut-Throat Grass FAC Crataegus erythropoda Cerro Hawthorn FAC Chloris virgata Feather Windmill Grass FACU Coleataenia rigidula Red-Top Cut-Throat Grass FACW Crataegus marshallii Parsley Hawthorn FACW Christella dentata Pai'i'iho FAC Coleataenia stipitata Stipitate Cut-Throat Grass FACW Crataegus mollis Downy Hawthorn FAC Christella hispidula Rough-Hairy Waterfall Fern FAC Coleataenia tenera Southeastern Cut-Throat Grass FACW Crataegus opaca River-Flat Hawthorn OBL Chromolaena odorata Jack-in-the-Bush FAC Collinsia verna Spring Blue-Eyed Mary FAC Crataegus phaenopyrum Hawthorn FAC Chrysopogon zizanioides Khus-Khus FACW Collomia linearis Narrow-Leaf Mountain-Trumpet FACU Crataegus rivularis River Hawthorn FACW Chrysopsis mariana Golden-Aster FACU Colocasia esculenta Coco-Yam OBL Crataegus spathulata Little-Hip Hawthorn FAC Cichorium intybus Chicory FACU Comandra umbellata Bastard-Toadflax UPL Crataegus viridis Green Hawthorn FAC Cicuta bulbifera Bulblet-Bearing Water-Hemlock OBL Comarum palustre Purple Marshlocks OBL Crepis capillaris Smooth Hawk's-Beard UPL Cicuta douglasii Western Water-Hemlock OBL Comastoma tenellum Samiland-Gentian FAC Crepis runcinata Fiddle-Leaf Hawk's-Beard FAC Cicuta maculata Spotted Water-Hemlock OBL Commelina caroliniana Carolina Dayflower FACU Cressa nudicaulis Naked-Stem Alkali-Weed OBL Cinna arundinacea Sweet Wood-Reed FACW Commelina communis Asiatic Dayflower FAC Cressa truxillensis Spreading Alkali-Weed FACW Cinna latifolia Slender Wood-Reed OBL Commelina diffusa Climbing Dayflower FACW Crocosmia X crocosmiiflora FACW Camphortree UPL Commelina erecta White-Mouth Dayflower FACU Croptilon divaricatum Slender Scratchdaisy FACU Circaea alpina Small Enchanter's-Nightshade FACW Commelina virginica Virginia Dayflower FAC Crotalaria incana Shakeshake FACU Circaea canadensis Broad-Leaf Enchanter's-Nightshade Conioselinum chinense Chinese Hemlock-Parsley FACW Crotalaria retusa Rattleweed UPL FACU Conioselinum scopulorum Rocky Mountain Hemlock-Parsley Crotalaria spectabilis Showy Rattlebox FACU Cirsium arizonicum Arizona Thistle FAC FACW Crypsis alopecuroides Fox-Tail Prickle Grass FACW Cirsium arvense Canadian Thistle FACU Conium maculatum Poison-Hemlock FACW Crypsis schoenoides Swamp Prickle Grass OBL Cirsium discolor Field Thistle FACU Conocarpus erectus Button Mangrove FACW Cryptocoryne beckettii Beckett's Water-Trumpet OBL Cirsium drummondii Dwarf Thistle FAC Conoclinium betonicifolium Betony-Leaf Mistflower FACW Cryptostegia grandiflora Palay Rubbervine FACU Cirsium flodmanii Flodman's Thistle FAC Conoclinium coelestinum Blue Mistflower FACW canadensis Canadian Honewort FAC Cirsium foliosum Elk Thistle FACU Conoclinium dissectum Pinked Mistflower FACW Cuphea carthagenensis Colombian Waxweed FAC Cirsium horridulum Yellow Thistle FAC Convolvulus equitans Texas Bindweed FACU Cuphea glutinosa Sticky Waxweed FACU Cirsium muticum Swamp Thistle FACW Cooperia chlorosolen Evening Rain-Lily FAC Cuphea viscosissima Blue Waxweed FAC Cirsium nuttallii Nuttall's Thistle FAC Coptidium lapponicum OBL Cyclachaena xanthiifolia Carelessweed FAC Cirsium parryi Parry's Thistle FACW Coptis trifolia Three-Leaf Goldthread FACW Cycloloma atriplicifolium Winged-Pigweed FACU Cirsium scariosum Meadow Thistle FAC Corallorhiza maculata Summer Coralroot UPL Cyclospermum leptophyllum Marsh-Parsley FAC Cirsium tracyi Tracy's Thistle FACU Corallorhiza striata Hooded Coralroot UPL Cynanchum laeve Honeyvine FAC Cirsium undulatum Wavy-Leaf Thistle FACU Corallorhiza trifida Yellow Coralroot FAC Cynodon dactylon Bermuda Grass FACU Cirsium vinaceum Sacramento Mountain Thistle OBL Corallorhiza wisteriana Spring Coralroot FACU Cynodon nlemfuensis Antelope Grass UPL Cirsium vulgare Bull Thistle UPL Cordylanthus ramosus Bushy Bird's-Beak FACW Cynoglossum officinale Gypsy-Flower FACU Cirsium wrightii Wright's Thistle OBL Coreopsis lanceolata Lance-Leaf Tickseed FACU Cynosciadium digitatum Finger-Dogshade FACW Cissus trifoliata Sorrelvine FACU Coreopsis pubescens Star Tickseed FACU Cynosurus cristatus Crested Dog's-Tail Grass FACU Citrullus lanatus Watermelon UPL Coreopsis tinctoria Golden Tickseed FAC Cyperus acuminatus Taper-Tip Flat Sedge OBL Citrus X aurantium FACU Coreopsis tripteris Tall Tickseed FAC Cyperus aggregatus Inflated-Scale Flat Sedge FAC Cladium californicum California Saw-Grass OBL Corispermum americanum American Bugseed FACU Cyperus articulatus Jointed Flat Sedge OBL Cladium mariscoides Smooth Saw-Grass OBL Corispermum hyssopifolium Hyssop-Leaf Bugseed FACU Cyperus bipartitus Shining Flat Sedge FACW Cladium mariscus Swamp Saw-Grass OBL Corispermum welshii Welsh's Bugseed UPL Cyperus compressus Poorland Flat Sedge FACW Clappia suaedifolia Fleshy Clapdaisy FACW Cornus alba Red Osier FACW Cyperus croceus Baldwin's Flat Sedge FAC Claytonia lanceolata Lance-Leaf Springbeauty FACW Cornus alternifolia Alternate-Leaf Dogwood FACU Cyperus diandrus Umbrella Flat Sedge FACW Claytonia megarhiza Alpine Springbeauty FACU Cornus canadensis Canadian Bunchberry FACU Cyperus difformis Variable Flat Sedge OBL Claytonia multiscapa Many-Stem Springbeauty FAC Cornus drummondii Rough-Leaf Dogwood FAC Cyperus digitatus Finger Flat Sedge FACW Claytonia perfoliata Miner's-Lettuce FACW Cornus florida Flowering Dogwood FACU Cyperus drummondii Drummond's Sedge OBL Claytonia virginica Virginia Springbeauty FACU Cornus foemina Stiff Dogwood FACW Cyperus echinatus Globe Flat Sedge FAC Clematis crispa Swamp Leather-Flower FAC Cornus obliqua Pale Dogwood FACW Cyperus elegans Royal Flat Sedge FACW Clematis ligusticifolia Traveler's-Joy FACU Cornus racemosa Gray Dogwood FAC Cyperus entrerianus Woodrush Flat Sedge FACW Clematis pitcheri Bluebill FACU Cortaderia jubata Uruguayan Pampas Grass UPL Cyperus eragrostis Tall Flat Sedge FACW Clematis terniflora Sweet Autumn Virgin's-Bower FACU Cortaderia selloana Selloa Pampus Grass FACU Cyperus erythrorhizos Red-Root Flat Sedge OBL Clematis virginiana Devil's-Darning-Needles FAC Corydalis caseana Sierran Fumewort FACW Cyperus esculentus Chufa FACW Cleomella angustifolia Northern Stinkweed FAC Corydalis flavula Yellow Fumewort FACU Cyperus fendlerianus Fendler's Flat Sedge FAC Cleomella longipes Chiricahua Mountain Stinkweed Corylus americana American Hazelnut UPL Cyperus flavescens Yellow Flat Sedge OBL Cyperus flavicomus White-Edge Flat Sedge FAC Deschampsia caespitosa Tufted Hair Grass FACW Distichlis littoralis Shore Grass OBL Cyperus fuscus Galingale FACW Deschampsia danthonioides Annual Hair Grass FACW Distichlis spicata Coastal Salt Grass FACW Cyperus haspan Sheathed Flat Sedge OBL Deschampsia elongata Slender Hair Grass FAC Ditrysinia fruticosa Gulf Sebastian-Bush FAC Cyperus hermaphroditus Hermaphrodite Flat Sedge FACU Deschampsia flexuosa Wavy Hair Grass UPL Dodecatheon conjugens Bonneville Shootingstar FACU Cyperus involucratus Alternate-Leaf Flat Sedge FACW Descurainia adenophora FACU Dodecatheon meadia Pride-of-Ohio FAC Cyperus iria Ricefield Flat Sedge FACW Descurainia incana Mountain Tansy-Mustard UPL Dodecatheon pulchellum Dark-Throat Shootingstar FACW Cyperus laevigatus Smooth Flat Sedge FAC Desmanthus illinoensis Prairie Bundle-Flower FACU Doellingeria sericocarpoides Southern White-Top FACW Cyperus lanceolatus Epiphytic Flat Sedge FACW Desmanthus virgatus Wild Tantan FACU Doellingeria umbellata Parasol White-Top OBL Cyperus lupulinus Great Plains Flat Sedge FACU Desmodium canadense Showy Tick-Trefoil FAC Draba albertina Slender Whitlow-Grass FAC Cyperus niger Black Flat Sedge FACW Desmodium incanum Zarzabacoa-Comun FAC Draba aurea Golden Whitlow-Grass FAC Cyperus ochraceus Pond Flat Sedge FACW Desmodium paniculatum Panicled-Leaf Tick-Trefoil UPL Draba helleriana Heller's Whitlow-Grass FACU Cyperus odoratus Rusty Flat Sedge FACW Desmodium scorpiurus Scorpion Tick-Trefoil FACU Draba spectabilis Showy Whitlow-Grass FACU Cyperus onerosus Plains Flat Sedge FACW Desmodium tortuosum Dixie Tick-Trefoil FACU Draba stenoloba Alaska Whitlow-Grass UPL Cyperus oxylepis Sharp-Scale Flat Sedge FACW Dianthus armeria Deptford Pink UPL Dracocephalum parviflorum American Dragonhead FACU Cyperus parishii Parish's Flat Sedge FACW Dianthus deltoides Maiden Pink UPL Dracopis amplexicaulis Clasping-Coneflower FAC Cyperus polystachyos Many-Spike Flat Sedge FACW Diarrhena obovata Hairy Beakgrain FAC X obovata OBL Cyperus pseudovegetus Marsh Flat Sedge FACW Dichanthelium aciculare Needle-Leaf Rosette Grass FACU Drosera brevifolia Dwarf Sundew OBL Cyperus reflexus Bent-Awn Flat Sedge FAC Dichanthelium acuminatum Tapered Rosette Grass FAC Drosera capillaris Pink Sundew OBL Cyperus retrofractus Rough Flat Sedge UPL Dichanthelium boreale Northern Rosette Grass FACU Drosera intermedia Spoon-Leaf Sundew OBL Cyperus retrorsus -Barren Flat Sedge FAC Dichanthelium clandestinum Deer-Tongue Rosette Grass FAC Drosera rotundifolia Round-Leaf Sundew OBL Cyperus rotundus Purple Flat Sedge FAC Dichanthelium commutatum Variable Rosette Grass FAC Dryas ajanensis Eight-Petal Mountain-Avens UPL Cyperus schweinitzii Sand Flat Sedge FACU Dichanthelium consanguineum Blood Rosette Grass FACU Dryas integrifolia White Mountain-Avens FACU Cyperus seslerioides Texas Flat Sedge FAC Dichanthelium dichotomum Cypress Rosette Grass FAC Drymaria pachyphylla Thick-Leaf Drymary FACU Cyperus setigerus Lean Flat Sedge FAC Dichanthelium latifolium Broad-Leaf Rosette Grass FACU arguta Tall Woodbeauty FACU Cyperus squarrosus Awned Flat Sedge OBL Dichanthelium laxiflorum Open-Flower Rosette Grass FAC Drymocallis convallaria Cream Woodbeauty FACU Cyperus strigosus Straw-Color Flat Sedge FACW Dichanthelium leibergii Leiberg's Rosette Grass FACU Sticky Woodbeauty FAC Cyperus surinamensis Tropical Flat Sedge FACW Dichanthelium leucothrix Rough Rosette Grass FACW Drymocallis micropetala Little-Petal Woodbeauty FAC Cyperus tetragonus Four-Angle Flat Sedge FAC Dichanthelium oligosanthes Heller's Rosette Grass FACU Drymocallis pseudorupestris FAC Cyperus thyrsiflorus Southern Flat Sedge FAC Dichanthelium ovale Egg-Leaf Rosette Grass FACU Dryopteris X triploidea FAC Cyperus virens Green Flat Sedge FACW Dichanthelium portoricense Hemlock Rosette Grass FAC Dryopteris X uliginosa FAC Cypripedium X andrewsii FACW Dichanthelium ravenelii Ravenel's Rosette Grass FAC Dryopteris carthusiana Spinulose Wood Fern FACW Cypripedium acaule Pink Lady's-Slipper FACW Dichanthelium scabriusculum Woolly Rosette Grass OBL Dryopteris celsa Log Fern OBL Cypripedium arietinum Ram-Head Lady's-Slipper FACW Dichanthelium scoparium Broom Rosette Grass FACW Dryopteris cristata Crested Wood Fern OBL Cypripedium candidum Small White Lady's-Slipper OBL Dichanthelium sphaerocarpon Round-Seed Rosette Grass FACU Dryopteris marginalis Marginal Wood Fern FACU Cypripedium parviflorum Yellow Lady's-Slipper FACW Dichanthelium strigosum Rough-Hair Rosette Grass FACW Dulichium arundinaceum Three-Way Sedge OBL Cypripedium reginae Showy Lady's-Slipper FACW Dichanthium aristatum Angleton's Bluestem FACU Mexican-Tea FAC Cyrilla racemiflora Little-Leaf Titi FACW Dichondra carolinensis Carolina Pony's-Foot FAC Dysphania botrys Jerusalem-Oak FACU Cyrtorhyncha cymbalaria Alkali Buttercup OBL Dichondra micrantha Asian Pony's-Foot FACW Echinochloa colona Jungle-Rice FACW Cyrtorhyncha ranunculina Tadpole Alkali Buttercup FAC Dichondra recurvata Oakwoods Pony's-Foot FAC Echinochloa crus-galli Large Barnyard Grass FAC Cystopteris bulbifera Bulblet Bladder Fern FACW Dicliptera brachiata Branched Foldwing FACW Echinochloa crus-pavonis Gulf Cock's-Spur Grass OBL Cystopteris fragilis Brittle Bladder Fern FACU Dicliptera sexangularis Six-Angle Foldwing FAC Echinochloa esculenta Japanese Water Grass FACU Cystopteris protrusa Lowland Bladder Fern FACW Didiplis diandra Water-Purslane OBL Echinochloa frumentacea Japanese-Millet UPL Dactylis glomerata Orchard Grass FACU Dieteria bigelovii Bigelow's False Tansy-Aster FACW Echinochloa muricata Rough Barnyard Grass FACW Dalea leporina Fox-Tail Prairie-Clover UPL Dieteria canescens Hoar False Tansy-Aster UPL Echinochloa polystachya Creeping River Grass FACW Danthonia californica California Wild Oat Grass FACU Digitalis purpurea Purple Foxglove UPL Echinochloa walteri Long-Awn Cock's-Spur Grass OBL Timber Wild Oat Grass FAC Digitaria bicornis Asian Crab Grass FACU Echinocystis lobata Wild Cucumber FAC fruticosa Golden-Hardhack FACW Digitaria ciliaris Southern Crab Grass FACU Echinodorus berteroi Upright Burrhead OBL Dasistoma macrophylla Mullein-Foxglove FAC Digitaria eriantha Pangola Grass FACU Echinodorus cordifolius Creeping Burrhead OBL Datura wrightii Sacred Thorn-Apple UPL Digitaria insularis Sour Grass FAC Echinopepon wrightii Wild Balsam-Apple FAC Daucus carota Queen Anne's-Lace UPL Digitaria ischaemum Smooth Crab Grass UPL Eclipta prostrata False Daisy FACW Decodon verticillatus Swamp-Loosestrife OBL Digitaria sanguinalis Hairy Crab Grass FACU Egeria densa Brazilian-Waterweed OBL Delphinium X burkei FACU Digitaria violascens Violet Crab Grass FAC Egletes viscosa Erect Tropical Daisy FACW Delphinium X occidentale UPL Dinebra nealleyi Nealley's Viper Grass FACW Eichhornia azurea Anchored Water-Hyacinth OBL Delphinium barbeyi Subalpine Larkspur FAC Dinebra panicea Needle Viper Grass FACW Eichhornia crassipes Common Water-Hyacinth OBL Delphinium geraniifolium Clark Valley Larkspur FAC Dinebra panicoides Amazon Viper Grass FACW Elaeagnus angustifolia Russian-Olive FACU Delphinium glaucescens Electric Peak Larkspur FACU Dinebra viscida Sonoran Viper Grass FACU Elaeagnus commutata American Silver-Berry UPL Delphinium glaucum Tower Larkspur FACW Diodia teres Poorjoe FACU Elatine americana American Waterwort OBL Delphinium nuttallianum Two-Lobe Larkspur FACU Diodia virginiana Virginia Buttonweed OBL Elatine brachysperma Short-Seed Waterwort FACW Delphinium sapellonis Sapello Canyon Larkspur FAC Dioscorea villosa Wild Yam FAC Elatine californica California Waterwort OBL Delphinium scopulorum Rocky Mountain Larkspur FAC Diospyros virginiana Common Persimmon FAC Elatine rubella Red-Stem Waterwort OBL Dendrolycopodium dendroideum Prickley Diplachne fusca Bearded Sprangletop FACW Eleocharis acicularis Needle Spike-Rush OBL Tree-Club-Moss FAC fullonum Fuller's Teasel FACU Eleocharis albida White Spike-Rush OBL Dendrolycopodium obscurum Princess-Pine FACU Dipsacus laciniatus Cut-Leaf Teasel UPL Eleocharis atropurpurea Purple Spike-Rush FACW Deschampsia brevifolia Short-Leaf Hair Grass FACW Dirca palustris Eastern Leatherwood FAC Eleocharis baldwinii Baldwin's Spike-Rush FACW Eleocharis bella Delicate Spike-Rush FACW Epilobium ciliatum Fringed Willowherb FACW Eriocaulon compressum Flattened Pipewort OBL Eleocharis cellulosa Gulf Coast Spike-Rush OBL Epilobium clavatum Talus Willowherb FACU Eriocaulon decangulare Ten-Angle Pipewort OBL Eleocharis compressa Flat-Stem Spike-Rush FACW Epilobium coloratum Purple-Leaf Willowherb OBL Eriocaulon koernickianum Gulf Pipewort OBL Eleocharis cylindrica Cylinder Spike-Rush OBL Epilobium glaberrimum Glaucous Willowherb FACW Eriocaulon texense Texas Pipewort OBL Eleocharis elliptica Elliptic Spike-Rush OBL Epilobium hallianum Glandular Willowherb FACW Eriochloa acuminata Taper-Tip Cup Grass FAC Eleocharis engelmannii Engelmann's Spike-Rush FACW Epilobium hirsutum Codlins-and-Cream FACW Eriochloa contracta Prairie Cup Grass FAC Eleocharis equisetoides Horsetail-Spike-Rush OBL Epilobium hornemannii Hornemann's Willowherb FACW Eriochloa punctata Louisiana Cup Grass FACW Eleocharis fallax Creeping Spike-Rush OBL Epilobium lactiflorum White-Flower Willowherb FACW Eriogonum ovalifolium Cushion Wild Buckwheat UPL Eleocharis flavescens Yellow Spike-Rush OBL Epilobium leptocarpum Slender-Fruit Willowherb FACW Eriophorum angustifolium Tall Cotton-Grass OBL Eleocharis geniculata Capitate Spike-Rush FACW Epilobium leptophyllum Bog Willowherb OBL Eriophorum chamissonis Chamisso's Cotton-Grass OBL Eleocharis intermedia Intermediate Spike-Rush OBL Epilobium minutum Chaparral Willowherb FACU Eriophorum gracile Slender Cotton-Grass OBL Eleocharis interstincta Knotted Spike-Rush OBL Epilobium oregonense Willowherb FACW Eriophorum russeolum Russet-Bristle Cotton-Grass OBL Eleocharis lanceolata Dagger-Leaf Spike-Rush FACW Epilobium palustre Marsh Willowherb OBL Eriophorum tenellum Few-Nerve Cotton-Grass OBL Eleocharis mamillata Soft-Stem Spike-Rush OBL Epilobium saximontanum Rocky Mountain Willowherb FACW Eriophorum vaginatum Tussock Cotton-Grass OBL Eleocharis melanocarpa Black-Fruit Spike-Rush FACW Epilobium strictum Downy Willowherb OBL Eriophorum virginicum Tawny Cotton-Grass OBL Eleocharis microcarpa Small-Fruit Spike-Rush OBL Epilobium suffruticosum Shrubby Willowherb FACU Eriophorum viridicarinatum Tassel Cotton-Grass OBL Eleocharis minima Small Spike-Rush OBL Epipactis gigantea Giant Helleborine OBL Erodium botrys Long-Beak Stork's-Bill FACU Eleocharis montana Mountain Spike-Rush OBL Epipactis helleborine Helleborine FACU Eryngium heterophyllum Wright's Eryngo FAC Eleocharis montevidensis Sand Spike-Rush FACW Equisetum X ferrissii FACW Eryngium hookeri Hooker's Eryngo FACW Eleocharis mutata -Grass OBL Equisetum X litorale OBL Eryngium integrifolium Blue-Flower Eryngo FACW Eleocharis obtusa Blunt Spike-Rush OBL Equisetum X mackaii OBL Eryngium nasturtiifolium Hierba-Del-Sapo FACW Eleocharis occulta Limestone Spike-Rush FACW Equisetum X nelsonii OBL Eryngium prostratum Creeping Eryngo FACW Eleocharis olivacea Bright-Green Spike-Rush OBL Equisetum arvense Field Horsetail FAC Eryngium yuccifolium Button Eryngo FACW Eleocharis palustris Common Spike-Rush OBL Equisetum fluviatile Water Horsetail OBL Erysimum cheiranthoides Worm-Seed Wallflower FACU Eleocharis parishii Parish's Spike-Rush FACW Equisetum hyemale Tall Scouring-Rush FACW Erythronium albidum Small White Fawn-Lily FACU Eleocharis parvula Little-Head Spike-Rush OBL Equisetum laevigatum Smooth Scouring-Rush FAC Erythronium rostratum Yellow Trout-Lily FAC Eleocharis quadrangulata Square-Stem Spike-Rush OBL Equisetum palustre Marsh Horsetail FACW Euonymus americanus American Strawberry-Bush FACW Eleocharis quinqueflora Few-Flower Spike-Rush OBL Equisetum pratense Meadow Horsetail FACW Euonymus atropurpureus Eastern Wahoo FACU Eleocharis radicans Rooted Spike-Rush OBL Equisetum scirpoides Dwarf Scouring-Rush FAC Eupatorium capillifolium Dog- FACU Eleocharis ravenelii Rio Grande Spike-Rush OBL Equisetum sylvaticum Woodland Horsetail FACW Eupatorium compositifolium Yankeeweed FACU Eleocharis reverchonii Reverchon's Spike-Rush OBL Equisetum variegatum Variegated Scouring-Rush FACW Eupatorium mohrii Mohr's Thoroughwort FAC Eleocharis rostellata Beaked Spike-Rush OBL Eragrostis cilianensis Stink Grass FACU Eupatorium perfoliatum Common Boneset FACW Eleocharis suksdorfiana Suksdorf's Spike-Rush OBL Eragrostis ciliaris Gopher-Tail Love Grass FACU Eupatorium rotundifolium Round-Leaf Thoroughwort FAC Eleocharis tenuis Slender Spike-Rush FACW Eragrostis elliottii Elliot's Love Grass FACW Eupatorium semiserratum Small-Flower Thoroughwort FAC Eleocharis tortilis Twisted Spike-Rush FACW Eragrostis frankii Sandbar Love Grass FACW Eupatorium serotinum Late-Flowering Thoroughwort FAC Eleocharis tuberculosa Cone-Cup Spike-Rush OBL Eragrostis hirsuta Big-Top Love Grass FACU Euphorbia commutata Tinted Woodland Spurge FACU Eleocharis vivipara Viviparous Spike-Rush OBL Eragrostis hypnoides Teal Love Grass OBL Euphorbia cyathophora Fire-on-the-Mountain UPL Eleocharis wolfii Wolf's Spike-Rush OBL Eragrostis japonica Japanese Love Grass OBL Euphorbia heterophylla Mexican-Fireplant FACU Elephantopus carolinianus Carolina Elephant's-Foot FAC Eragrostis lugens Mourning Love Grass FACU Euphorbia hirta Pill-Pod Sandmat UPL Eleusine indica Indian Goose Grass FACU Eragrostis lutescens Six-Weeks Love Grass FACU Euphorbia humistrata Spreading Sandmat FAC Elionurus tripsacoides Pan-American Balsamscale FACU Eragrostis mexicana Mexican Love Grass FACU Euphorbia hypericifolia Graceful Sandmat FACU Ellisia nyctelea Aunt Lucy FACU Eragrostis pectinacea Purple Love Grass FAC Euphorbia hyssopifolia Hyssop-Leaf Sandmat FACU Elodea bifoliata Two-Leaf Waterweed OBL Eragrostis pilosa Indian Love Grass FACU Euphorbia maculata Spotted Sandmat FACU Elodea canadensis Canadian Waterweed OBL Eragrostis refracta Meadow Love Grass FACW Euphorbia marginata Snow-on-the-Mountain FACU Elodea nuttallii Western Waterweed OBL Eragrostis reptans Creeping Love Grass OBL Euphorbia nutans Eyebane FACU Elymus alaskanus Alaska Wild Rye UPL Eragrostis secundiflora Red Love Grass FACU Euphorbia prostrata Prostrate Sandmat UPL Elymus canadensis Nodding Wild Rye FACU Eragrostis spectabilis Petticoat-Climber UPL Euphorbia serpens Matted Sandmat FACU Elymus curvatus Awnless Wild Rye FAC Erigeron acris Bitter Fleabane FAC Euphorbia spathulata Warty Spurge FACU Elymus elymoides Western Bottle-Brush Grass UPL Erigeron annuus Eastern Daisy Fleabane FACU Euphrosyne acerosa Copperweed UPL Elymus glaucus Blue Wild Rye FACU Erigeron bonariensis Asthmaweed FACU Eurybia hemispherica Prairie Wood-Aster FAC Elymus hystrix Eastern Bottle-Brush Grass FACU Erigeron canadensis Canadian Horseweed FACU Eurybia macrophylla Large-Leaf Wood-Aster FACU Elymus lanceolatus Streamside Wild Rye FACU Erigeron coulteri Large Mountain Fleabane FACW Eurybia sibirica Siberian Wood-Aster FAC Elymus repens Creeping Wild Rye FACU Erigeron elatior Tall Fleabane FACW Eustachys neglecta Four-Spike Finger Grass FACU Elymus riparius River-Bank Wild Rye FAC Erigeron flagellaris Trailing Fleabane FAC Eustachys petraea Pinewoods Finger Grass FACU Elymus trachycaulus Slender Wild Rye FACU Erigeron formosissimus Beautiful Fleabane FAC Eustoma exaltatum Catchfly Prairie-Gentian FACW Elymus villosus Hairy Wild Rye FACU Erigeron glabellus Streamside Fleabane FACW Euthamia graminifolia Flat-Top Goldentop FACW Elymus virginicus Virginia Wild Rye FAC Erigeron lonchophyllus Short-Ray Fleabane FACW Euthamia gymnospermoides Texas Goldentop FAC Elymus wawawaiensis Wawawai Wild Rye FACU Erigeron melanocephalus Black-Head Fleabane FAC Euthamia leptocephala Bushy Goldentop FAC Elymus wiegandii Wiegand's Wild Rye FAC Erigeron philadelphicus Philadelphia Fleabane FAC Euthamia occidentalis Western Goldentop OBL Emilia fosbergii Florida Tassel-Flower UPL Erigeron procumbens Corpus Christi Fleabane FACW Eutrochium fistulosum Trumpetweed FACW Endodeca serpentaria Virginia-Snakeroot FACU Erigeron pulchellus Robin's-Plantain FACU Eutrochium maculatum Spotted Trumpetweed OBL Enemion biternatum Eastern False Rue-Anemone FAC Erigeron strigosus Prairie Fleabane FACU Eutrochium purpureum Sweet-Scented Joe-Pye-Weed FAC Epilobium anagallidifolium Pimpernel Willowherb FAC Eriobotrya japonica Loquat UPL Evolvulus sericeus Silver Dwarf-Morning-Glory UPL Epilobium campestre Smooth Willowherb FACW Eriocaulon aquaticum Seven-Angle Pipewort OBL Fagus grandifolia American Beech FACU Fallopia convolvulus Black-Bindweed FACU divaricatum Lamarck's Bedstraw FAC FACU Fallopia dumetorum Corpse Black-Bindweed FACU Galium labradoricum Northern Bog Bedstraw OBL Goodyera tesselata Checkered Rattlesnake-Plantain Fallopia scandens Climbing Black-Bindweed FACU Galium mexicanum Mexican Bedstraw FAC FACU Fatoua villosa Hairy Crabweed FAC Galium microphyllum Bracted Bedstraw FAC Gossypium hirsutum Upland Cotton UPL Bluebunch Fescue UPL Galium obtusum Blunt-Leaf Bedstraw FACW Graphephorum wolfii FACW Festuca paradoxa Clustered Fescue FAC Galium tinctorium Stiff Marsh Bedstraw OBL Gratiola aurea Golden Hedge-Hyssop OBL Festuca rubra Red Fescue FAC Galium trifidum Three-Petal Bedstraw OBL Gratiola brevifolia Sticky Hedge-Hyssop FACW Festuca subulata Bearded Fescue UPL Galium triflorum Fragrant Bedstraw FACU Gratiola ebracteata Bractless Hedge-Hyssop OBL Festuca subverticillata Nodding Fescue FACU Galium uncinulatum Bristly Bedstraw FAC Gratiola flava Yellow Hedge-Hyssop FAC Festuca trachyphylla Hard Fescue UPL Galium uniflorum One-Flower Bedstraw FACU Gratiola neglecta Clammy Hedge-Hyssop OBL Ficaria verna Eurasian-Buttercup FACW Gamochaeta pensylvanica Pennsylvania Everlasting UPL Gratiola quartermaniae Quarterman's Hedge-Hyssop FAC Ficus carica Common Fig FACU Gamochaeta purpurea Spoon-Leaf Purple Everlasting FACU Gratiola virginiana Round-Fruit Hedge-Hyssop OBL Filipendula ulmaria Queen-of-the-Meadow FAC Gaultheria hispidula Creeping-Snowberry FACW Grindelia ciliata Spanishgold UPL Fimbristylis annua Annual Fimbry FACW Gaultheria humifusa Alpine Spicy-Wintergreen FACU Grindelia squarrosa Curly-Cup Gumweed UPL Fimbristylis autumnalis Slender Fimbry OBL Gaultheria ovatifolia Western Teaberry FAC Gymnocarpium dryopteris Northern Oak Fern FACU Fimbristylis caroliniana Carolina Fimbry FACW Gaultheria procumbens Eastern Teaberry FACU Gymnocarpium robertianum Limestone Oak Fern FACU Fimbristylis castanea Marsh Fimbry OBL Gelsemium sempervirens Evening Trumpet-Flower FACU Gynandropsis gynandra Spiderwisp FAC Fimbristylis decipiens Southern Fimbry FAC Gentiana affinis Pleated Gentian FACU Habenaria quinqueseta Long-Horn False Rein Orchid FACW Fimbristylis dichotoma Forked Fimbry FACW Gentiana alba Yellow Gentian FAC Habenaria repens Water-Spider False Rein Orchid Fimbristylis littoralis Grass-Like Fimbry OBL Gentiana algida Whitish Gentian FACW OBL Fimbristylis puberula Hairy Fimbry OBL Gentiana andrewsii Closed Bottle Gentian FAC Habranthus tubispathus Rio Grande Copper-Lily FACW Fimbristylis tomentosa Woolly Fimbry FACW Gentiana fremontii Moss Gentian OBL Hackelia floribunda Many-Flower Stickseed FACU Fimbristylis vahlii Vahl's Fimbry FACW Gentiana parryi Parry's Gentian FACW Hackelia virginiana Beggar's-Lice FACU Flaveria brownii Brown's Yellowtops FACW Gentiana rubricaulis Closed Gentian OBL Halenia deflexa American Spurred-Gentian FAC Flaveria campestris Alkali Yellowtops FAC Gentianella amarella Autumn Dwarf-Gentian FACW Halenia rothrockii Mt. Graham Spurred-Gentian FAC Flaveria chlorifolia Clasping Yellowtops FACW Gentianella wrightii Wright's Dwarf-Gentian FACW Halesia diptera Two-Wing Silverbell FAC Flaveria trinervia Clustered Yellowtops FAC Gentianopsis barbellata Perennial Fringed-Gentian FAC Halodule wrightii Shoalweed OBL Fleischmannia incarnata Pink Slender-Thoroughwort FAC Gentianopsis crinita Greater Fringed-Gentian OBL Halophila engelmannii Engelmann's Sea-Grass OBL Floerkea proserpinacoides False Mermaidweed FACW Gentianopsis thermalis Rocky Mountain Fringed-Gentian Hamamelis vernalis Ozark Witch-Hazel FAC Forestiera acuminata Eastern Swamp-Privet OBL OBL Hamamelis virginiana American Witch-Hazel FAC Forestiera ligustrina Upland Swamp-Privet FAC Gentianopsis virgata Lesser Fringed-Gentian OBL Hammarbya paludosa OBL Forestiera pubescens Stretchberry FACU caespitosum Purple Cluster Crane's-Bill FAC Hedera helix English Ivy UPL Fragaria chiloensis Beach Strawberry FACU Geranium maculatum Spotted Crane's-Bill FACU Hedysarum alpinum Alpine Sweet-Vetch FACU Fragaria vesca Woodland Strawberry UPL Geranium richardsonii White Crane's-Bill FAC Helanthium tenellum Dwarf Burhead Pygmy Swordplant Fragaria virginiana Virginia Strawberry FACU Sticky Purple Crane's-Bill FACU OBL Frangula alnus Glossy False Buckthorn FAC Geum aleppicum Yellow Avens FACU Helenium amarum Yellowdicks FACU Frangula betulifolia Birch-Leaf False Buckthorn FACU Geum canadense White Avens FAC Helenium autumnale Fall Sneezeweed FACW Frangula caroliniana Carolina False Buckthorn FACU Geum laciniatum Rough Avens FACW Helenium drummondii Fringed Sneezeweed FACW Fraxinus americana White Ash FACU Geum macrophyllum Large-Leaf Avens FACW Helenium flexuosum Purple-Head Sneezeweed FACW Fraxinus berlandieriana Mexican Ash FAC Geum rivale Purple Avens FACW Helenium microcephalum Small-Head Sneezeweed FACW Fraxinus nigra Black Ash FACW Geum rossii Ross' Avens FACU Helianthella quinquenervis Nodding Dwarf-Sunflower FACW Fraxinus pennsylvanica Green Ash FAC Old-Man's-Whiskers FACU Helianthus angustifolius Swamp Sunflower FAC Fraxinus velutina Velvet Ash FAC Geum vernum Spring Avens FACU Helianthus annuus Common Sunflower FACU Fuirena breviseta Saltmarsh Umbrella Sedge OBL Gibasis geniculata Tahitian Bridalveil FAC Helianthus ciliaris Texas-Blueweed FAC Fuirena longa Coastal-Plain Umbrella Sedge OBL Glechoma hederacea Groundivy FACU Helianthus debilis Cucumber-Leaf Sunflower FAC Fuirena pumila Dwarf Umbrella Sedge OBL Gleditsia aquatica Water-Locust OBL Helianthus giganteus Giant Sunflower FAC Fuirena scirpoidea Southern Umbrella Sedge OBL Gleditsia triacanthos Honey-Locust FACU Helianthus grosseserratus Saw-Tooth Sunflower FACW Fuirena simplex Western Umbrella Sedge OBL Glinus lotoides Lotus Sweetjuice FACW Helianthus heterophyllus Variable-Leaf Sunflower OBL Fuirena squarrosa Hairy Umbrella Sedge OBL Glinus radiatus Spreading Sweetjuice FACW Helianthus maximiliani Maximilian Sunflower FACU angustifolium Gulf Coast Twinevine OBL Glyceria arkansana Arkansas Manna Grass OBL Helianthus microcephalus Small Woodland Sunflower UPL Funastrum clausum White Twinevine FACW Glyceria borealis Small Floating Manna Grass OBL Helianthus nuttallii Nuttall's Sunflower FACW Funastrum cynanchoides Fringed Twinevine FACU Glyceria canadensis Rattlesnake Manna Grass OBL Helianthus occidentalis Few-Leaf Sunflower FACU Funkiella confusa Rimrock Ladies'-Braids FAC Glyceria elata Tall Manna Grass OBL Helianthus paradoxus Trans-Pecos Sunflower FACW Gaillardia pulchella Firewheel UPL Glyceria fluitans Water Manna Grass OBL Helianthus simulans Muck Sunflower FACW Galactia volubilis Downy Milk-Pea FACU Glyceria grandis American Manna Grass OBL Helianthus strumosus Pale-Leaf Woodland Sunflower FACU Galeopsis tetrahit Brittle-Stem Hemp-Nettle FACU Glyceria septentrionalis Floating Manna Grass OBL Helianthus tuberosus Jerusalem-Artichoke FACU Galinsoga parviflora Gallant-Soldier UPL Glyceria striata Fowl Manna Grass OBL Heliopsis helianthoides Smooth Oxeye FACU Galinsoga quadriradiata Shaggy-Soldier FACU Glycyrrhiza lepidota American Licorice FACU Heliotropium angiospermum Scorpion's-Tail UPL Sticky-Willy FACU Gnaphalium exilifolium Slender Cudweed FAC Heliotropium curassavicum Seaside Heliotrope OBL Galium asprellum Rough Bedstraw OBL Gnaphalium palustre Western Marsh Cudweed OBL Heliotropium glabriusculum Green-Eye Heliotrope FACW Northern Bedstraw FACU Gnaphalium uliginosum Marsh Cudweed FAC Heliotropium greggii Fragrant Heliotrope FACW Galium brevipes Limestone-Swamp Bedstraw OBL Gomphrena globosa Common Globe-Amaranth UPL Heliotropium indicum Indian Heliotrope FACW Galium circaezans Licorice Bedstraw FACU Gonolobus suberosus Angular-Fruit Anglepod FACW Heliotropium molle Soft Heliotrope FACW Galium concinnum Shining Bedstraw FACU Goodyera oblongifolia Green-Leaf Rattlesnake-Plantain Heliotropium procumbens Four-Spike Heliotrope FACW Helminthotheca echioides Akan Asante UPL fraseri Fraser's St. John's-Wort OBL Iris pseudacorus Pale-Yellow Iris OBL Hemarthria altissima Limpo Grass FACW Bedstraw St. John's-Wort OBL Iris versicolor Harlequin Blueflag OBL Hemerocallis fulva Orange Day-Lily FACU Orange-Grass FACU Iris virginica Virginia Blueflag OBL Hemieva ranunculifolia Buttercup Hemieva FACW Clasping-Leaf St. John's-Wort FACW Isoetes bolanderi Bolander's Quillwort OBL Hemiscola aculeata FAC St. Andrew's-Cross FACU Isoetes butleri Limestone Quillwort OBL Heracleum maximum American Cow-Parsnip FAC Greater Canadian St. John's-Wort Isoetes echinospora Spiny-Spore Quillwort OBL Hesperis matronalis Mother-of-the-Evening FACU FACW Isoetes lithophila Rock Quillwort OBL Heteranthera dubia Grass-Leaf Mud-Plantain OBL Dwarf St. John's-Wort FACW Isoetes melanopoda Black-Foot Quillwort OBL Heteranthera limosa Blue Mud-Plantain OBL Hypericum nudiflorum Early St. John's-Wort FACW Isoetes occidentalis Western Quillwort OBL Heteranthera mexicana Mexican Mud-Plantain OBL Common St. John's-Wort UPL Isoetes piedmontana Piedmont Quillwort OBL Heteranthera reniformis Kidney-Leaf Mud-Plantain OBL Shrubby St. John's-Wort FACU Isolepis carinata Keeled Lateral-Bulrush FACW Heteropogon contortus Twisted Tanglehead UPL Spotted St. John's-Wort FAC Isolepis pseudosetacea Gulf Coast Lateral-Bulrush OBL Heuchera americana American Alumroot FACU Round-Seed St. John's-Wort FACU Isotrema tomentosum Woolly Pipevine FAC Heuchera richardsonii Richardson's Alumroot FACU Hypericum tubulosum Lesser St. John's-Wort OBL Isotria verticillata Purple Five-Leaf Orchid FAC Heuchera rubescens Pink Alumroot FACU Virginia St. John's-Wort OBL Itea virginica Virginia Sweetspire OBL Hexalectris spicata Spiked Crested-Coralroot UPL Greater St. John's-Wort OBL Iva annua Annual Marsh-Elder FAC Hibiscus dasycalyx Neches River Rose-Mallow OBL Hypochaeris radicata Hairy Cat's-Ear UPL Iva axillaris Deer-Root FAC Hibiscus laevis Halberd-Leaf Rose-Mallow OBL Hypoxis curtissii Curtiss' Yellow Star-Grass FACW Iva frutescens Jesuit's-Bark FACW Hibiscus moscheutos Crimson-Eyed Rose-Mallow OBL Hypoxis hirsuta Eastern Yellow Star-Grass FACW Iva imbricata Seacoast Marsh-Elder FACW Hibiscus striatus Striped Rose-Mallow OBL Hypoxis rigida Chapman's Yellow Star-Grass FACW Jacquemontia tamnifolia Hairy Clustervine FAC Hieracium gronovii Queendevil FACU Hypoxis sessilis Glossy-Seed Yellow Star-Grass Jamesia americana Five-Petal Cliffbush FACU Hippuris vulgaris Common Mare's-Tail OBL FAC Juglans major Arizona FAC Hoffmannseggia glauca Waxy Rush-Pea FAC Hypoxis wrightii Bristle-Seed Yellow Star-Grass FACW Juglans microcarpa Little Walnut FAC Holcus lanatus Common Velvet Grass FAC Hyptis alata Clustered Bush-Mint OBL Juglans nigra Black Walnut FACU Hopia obtusa -Mesquite FAC Ilex coriacea Large Gallberry FACW Juncus acuminatus Knotty-Leaf Rush OBL Hordeum brachyantherum Meadow Barley FAC Ilex decidua Deciduous Holly FAC Juncus albescens Northern White Rush OBL Hordeum jubatum Fox-Tail Barley FACW Ilex longipes Holly FACW Juncus alpinoarticulatus Northern Green Rush OBL Hordeum marinum Seaside Barley FACU Ilex opaca American Holly FACU Juncus anthelatus Rush FACW Hordeum murinum Wall Barley FACU Ilex vomitoria Yaupon FAC Juncus articulatus Joint-Leaf Rush OBL Hordeum pusillum Little Barley FACU Iliamna grandiflora Large-Flower Wild Hollyhock FACW Juncus balticus Baltic Rush FACW Hottonia inflata American Featherfoil OBL Impatiens aurella Pale-Yellow Touch-Me-Not FACW Juncus brachycarpus White-Root Rush FACW Houstonia caerulea Quaker-Ladies FACU Impatiens balsamina Garden-Balsam UPL Juncus brachycephalus Small-Head Rush OBL Houstonia pusilla Tiny Bluet UPL Impatiens capensis Spotted Touch-Me-Not FACW Juncus brachyphyllus Short-Leaf Rush FAC Houstonia wrightii Pygmy Bluet FACU Impatiens pallida Pale Touch-Me-Not FACW Juncus brevicaudatus Narrow-Panicle Rush OBL Chameleon FAC Imperata brevifolia California Satintail FAC Juncus bufonius Toad Rush OBL Humulus japonicus Japanese Hop FACU Imperata cylindrica Cogon Grass FACU Juncus canadensis Canadian Rush OBL Humulus lupulus Common Hop FACU Indigofera lindheimeriana Lindheimer's Indigo FAC Juncus capitatus Leafy-Bract Dwarf Rush FACU Huperzia lucidula Shining Fir-Moss FACW Indigofera suffruticosa Anil-de-Pasto FAC Juncus castaneus Chestnut Rush OBL Hydrangea arborescens Wild Hydrangea FACU Iodanthus pinnatifidus Purple-Rocket FACW Juncus compressus Round-Fruit Rush FACW Hydrilla verticillata Water-Thyme OBL Ipomoea alba Tropical White Morning-Glory FAC Juncus confusus Rush FACW Hydrocotyle bonariensis Coastal Marsh-Pennywort FACW Ipomoea amnicola Red-Center Morning-Glory FACW Juncus coriaceus Leathery Rush OBL Hydrocotyle prolifera Proliferous Marsh-Pennywort OBL Ipomoea cairica Mile-a-Minute-Vine FACU Juncus debilis Weak Rush FACW Hydrocotyle ranunculoides Floating Marsh-Pennywort OBL Ipomoea carnea Gloria-de-la-Manana FACU Juncus dichotomus Forked Rush FACW Hydrocotyle sibthorpioides Lawn Marsh-Pennywort FACW Ipomoea coccinea Redstar FAC Juncus diffusissimus Slim-Pod Rush FACW Hydrocotyle umbellata Many-Flower Marsh-Pennywort OBL Ipomoea cordatotriloba Tievine FAC Juncus drummondii Drummond's Rush FACW Hydrocotyle verticillata Whorled Marsh-Pennywort OBL Ipomoea hederacea Ivy-Leaf Morning-Glory FAC Juncus dudleyi Dudley's Rush FACW Hydrolea ovata Ovate False Fiddleleaf OBL Ipomoea imperati Beach Morning-Glory FAC Juncus effusus Lamp Rush OBL Hydrolea spinosa Spiny False Fiddleleaf OBL Ipomoea indica Ocean-Blue Morning-Glory FAC Juncus ensifolius Dagger-Leaf Rush FACW Hydrolea uniflora One-Flower False Fiddleleaf OBL Ipomoea lacunosa Whitestar FACW Juncus filiformis Thread Rush OBL Hydrophyllum fendleri Fendler's Waterleaf FACW Ipomoea lindheimeri Lindheimer's Morning-Glory FACU Juncus filipendulus Ring-Seed Rush FAC Hydrophyllum virginianum Shawnee-Salad FAC Ipomoea pandurata Man-of-the-Earth FACU Juncus gerardii Saltmarsh Rush OBL Hygrophila lacustris Gulf Swampweed OBL Ipomoea pes-caprae Bay-Hops FAC Juncus greenei Greene's Rush FAC Hygrophila polysperma Miramar-Weed OBL Ipomoea purpurea Common Morning-Glory FACU Juncus interior Inland Rush FACW Hymenocallis liriosme Spring Spider-Lily OBL Ipomoea quamoclit Cypress-Vine FACU Juncus longistylis Long-Style Rush FACW Hymenocallis occidentalis Carolina Spider-Lily FACW Ipomoea sagittata Glade Morning-Glory FACW Juncus marginatus Bog Rush FACW Hymenoxys hoopesii Owl's-Claws FAC Ipomoea violacea Heavenly-Blue Morning-Glory FAC Juncus megacephalus Big-Head Rush OBL Hymenoxys texana Prairiedawn FACW Ipomoea wrightii Wright's Morning-Glory FACW Juncus mertensianus Mertens' Rush OBL Jaragua FACU Iresine diffusa Juba's-Bush FAC Juncus mexicanus Mexican Rush FACW Lesser Canadian St. John's-Wort Iresine rhizomatosa Juda's-Bush FACW Juncus nevadensis Sierran Rush FACW FACW Iris X flexicaulis OBL Juncus nodatus Stout Rush OBL Hypericum cistifolium Round-Pod St. John's-Wort FACW Iris brevicaulis Zigzag Iris OBL Juncus nodosus Knotted Rush OBL Hypericum crux-andreae St. Peter's-Wort FAC Iris fulva Copper Iris OBL Juncus pelocarpus Brown-Fruit Rush OBL Hypericum drummondii Nits-and-Lice FACU Iris giganticaerulea Giant Blue Iris OBL Juncus polycephalos Many-Head Rush OBL Peel-Bark St. John's-Wort FACW Iris missouriensis Rocky Mountain Iris FACW Juncus pylaei Common Rush OBL Juncus repens Lesser Creeping Rush OBL Lemna minuta Least Duckweed OBL cardinalis Cardinal-Flower FACW Juncus roemerianus Roemer's Rush OBL Lemna obscura Little Duckweed OBL Lobelia fenestralis Fringe-Leaf Lobelia FAC Juncus saximontanus Rocky Mountain Rush FACW Lemna perpusilla Minute Duckweed OBL Lobelia flaccidifolia Fold-Ear Lobelia FACW Juncus scirpoides Needle-Pod Rush FACW Lemna trisulca Ivy-Leaf Duckweed OBL Indian-Tobacco FAC Juncus secundus Lopsided Rush FAC Lemna turionifera Turion Duckweed OBL Lobelia kalmii Brook Lobelia OBL Juncus stygius Moor Rush OBL Lemna valdiviana Pale Duckweed OBL Lobelia puberula Downy Lobelia FACW Juncus tenuis Lesser Poverty Rush FAC Leonotis nepetifolia Christmas-Candlestick FACU Lobelia siphilitica Great Blue Lobelia OBL Juncus texanus Texas Rush OBL Leontodon saxatilis Lesser Hawkbit FAC Lobelia spicata Pale-Spike Lobelia FAC Juncus torreyi Torrey's Rush FACW Lepidium appelianum Globe-Pod Pepperwort FAC Lolium perenne Perennial Rye Grass FACU Juncus trigonocarpus Red-Pod Rush OBL Lepidium densiflorum Miner's Pepperwort FAC Lomatium bicolor Wasatch Desert-Parsley UPL Juncus validus Round-Head Rush FACW Lepidium latifolium Broad-Leaf Pepperwort FACW Lomatogonium rotatum Marsh-Felwort OBL Juncus vaseyi Vasey's Rush FACW Lepidium nitidum Shining Pepperwort FAC Lonicera X bella FACU Juniperus communis Common UPL Lepidium perfoliatum Clasping Pepperwort FAC Lonicera canadensis American Fly- FACU Juniperus deppeana Alligator Juniper FACU Lepidium thurberi Thurber's Pepperwort UPL Lonicera cauriana Sweet-Berry Honeysuckle FAC Juniperus horizontalis Creeping Juniper UPL Lepidium virginicum Poorman's-Pepperwort FACU Lonicera dioica Limber Honeysuckle FACU Juniperus virginiana Eastern Red-Cedar UPL Leptochloa crinita False Rhodes Grass FACU Lonicera hirsuta Hairy Honeysuckle FAC Justicia americana American Water-Willow OBL Leptochloa virgata Tropical Sprangletop FAC Lonicera involucrata Four-Line Honeysuckle FACU Justicia lanceolata OBL Leptosiphon nuttallii Nuttall's Perennial Gily-Flower FAC Japanese Honeysuckle FACU Kickxia elatine Sharp-Leaf Cancerwort FACU Lepuropetalon spathulatum Petiteplant FACW Lonicera morrowii Morrow's Honeysuckle UPL Kobresia myosuroides Pacific Bog Sedge FAC Lespedeza capitata Round-Head Bush-Clover UPL Lonicera oblongifolia Swamp Fly-Honeysuckle OBL Kosteletzkya depressa White Fen-Rose FAC Lespedeza cuneata Chinese Bush-Clover FACU Lonicera sempervirens Trumpet Honeysuckle FAC Kosteletzkya pentacarpos Virginia Fen-Rose OBL Leucaena leucocephala White Leadtree FACU Lonicera tatarica Twinsisters FACU Krigia biflora Two-Flower Dwarf-Dandelion FAC Leucanthemum vulgare Ox-Eye Daisy UPL Lonicera utahensis Rocky Mountain Honeysuckle FACU Krigia caespitosa Weedy Dwarf-Dandelion FAC Leucospora multifida Narrow-Leaf Paleseed FACW Lonicera villosa Mountain Fly-Honeysuckle FACW Krigia dandelion Potato Dwarf-Dandelion FACU Lewisia pygmaea Alpine Bitter-Root FACU Lotus corniculatus Garden Bird's-Foot-Trefoil FACU Krigia virginica Virginia Dwarf-Dandelion FACU Leymus cinereus Lyme Grass UPL Lotus tenuis Narrow-Leaf Bird's-Foot-Trefoil FACU Kummerowia stipulacea Korean-Clover FACU Leymus condensatus Giant Lyme Grass FACU Ludwigia alternifolia Seedbox OBL Kummerowia striata Japanese-Clover UPL Leymus triticoides Beardless Lyme Grass FAC Ludwigia decurrens Wing-Leaf Primrose-Willow OBL Kyllinga brevifolia Short-Leaf Spike Sedge FACW Liatris acidota Sharp Gayfeather FAC Ludwigia glandulosa Cylindric-Fruit Primrose-Willow OBL Kyllinga odorata Fragrant Spike Sedge FACW Liatris lancifolia Lance-Leaf Gayfeather FAC Ludwigia grandiflora Large-Flower Primrose-Willow OBL Kyllinga pumila Low Spike Sedge FACW Liatris ligulistylis Strap-Style Gayfeather FAC Ludwigia hirtella Spindleroot OBL Lachnagrostis filiformis Common Blown Grass FACU Liatris pycnostachya Cat-Tail Gayfeather FAC Ludwigia leptocarpa Angle-Stem Primrose-Willow OBL Lachnocaulon anceps White-Head Bogbutton OBL Ligusticum porteri Porter's Wild FAC Ludwigia linearis Narrow-Leaf Primrose-Willow OBL Lackeya multiflora FACU Ligusticum tenuifolium Slender-Leaf Wild Lovage FAC Ludwigia octovalvis Mexican Primrose-Willow OBL Lactuca biennis Wild Blue Lettuce FAC Ligustrum japonicum Japanese Privet UPL Ludwigia palustris Marsh Primrose-Willow OBL Lactuca canadensis Canadian Blue Lettuce FACU Ligustrum sinense Chinese Privet UPL Ludwigia peploides Floating Primrose-Willow OBL Lactuca floridana Woodland Lettuce FAC Ligustrum vulgare European Privet FACU Ludwigia peruviana Peruvian Primrose-Willow OBL Lactuca graminifolia Grass-Leaf Lettuce FAC Lilium michiganense Michigan Lily FACW Ludwigia pilosa Hairy Primrose-Willow OBL Lactuca ludoviciana Louisiana Lettuce FACU Lilium philadelphicum Wood Lily FACU Ludwigia polycarpa Many-Fruit Primrose-Willow OBL Lactuca saligna Willow-Leaf Lettuce FACU Limnobium spongia American Spongeplant OBL Ludwigia repens Creeping Primrose-Willow OBL Lactuca serriola Prickly Lettuce FAC Limnophila sessiliflora Asian Marshweed OBL Ludwigia sphaerocarpa Globe-Fruit Primrose-Willow OBL Lactuca tatarica Russian Blue Lettuce UPL Limnosciadium pinnatum Tansy Dogshade FACW Lupinus kingii King's Lupine FAC Laennecia coulteri Coulter's Woolwort FACW Limnosciadium pumilum Prairie Dogshade FACW Lupinus latifolius Broad-Leaf Lupine FAC Laguncularia racemosa White Mangrove FACW Limonium carolinianum Carolina Sea-Lavender OBL Lupinus prunophilus Hairy Big-Leaf Lupine FACU Landoltia punctata Dotted Duckmeat OBL Limonium limbatum Trans-Pecos Sea-Lavender FACW Luziola fluitans Southern Water Grass OBL Lantana camara Hedgeflower FACU Limosella acaulis Owyhee Mudwort OBL Luzula acuminata Hairy Wood-Rush FAC Lantana urticoides West Indian -Verbena FACU Limosella aquatica Awl-Leaf Mudwort OBL Luzula arcuata Curved Wood-Rush FACU Laportea canadensis Canadian Wood-Nettle FAC Lindera benzoin Northern Spicebush FACW Luzula bulbosa Bulbous Wood-Rush FACU Lapsana communis Common Nipplewort FAC Lindernia dubia Yellow-Seed False Pimpernel OBL Luzula comosa Pacific Wood-Rush FAC Larix laricina American Larch FACW Linnaea borealis American Twinflower FACU Luzula echinata Hedgehog Wood-Rush FAC Lathyrus hirsutus Singletary Vetchling FAC Linum medium Stiff Yellow Flax FAC Luzula multiflora Common Wood-Rush FAC Lathyrus japonicus Sea Vetchling FACU Linum striatum Ridged Yellow Flax FACW Luzula parviflora Small-Flower Wood-Rush UPL Lathyrus lanszwertii Vetchling FACU Linum virginianum Woodland Flax FAC Luzula spicata Spiked Wood-Rush FACU Lathyrus palustris Marsh Vetchling FACW Liparis loeselii Yellow Wide-Lip Orchid OBL Luzula subcapitata Colorado Wood-Rush OBL Lathyrus pusillus Tiny Vetchling FAC Lipocarpha aristulata Awned Halfchaff Sedge FACW Lycium carolinianum Carolina Desert-Thorn FACW Lathyrus venosus Veiny Vetchling FAC Lipocarpha drummondii Drummond's Halfchaff Sedge FACW Lycium torreyi Squawthorn FAC Leavenworthia aurea Golden Gladecress FACU Lipocarpha micrantha Small-Flower Halfchaff Sedge FACW Lycopodiella alopecuroides Fox-Tail Club-Moss OBL Leersia hexandra Southern Cut Grass OBL Lippia alba Bushy Mat-Grass FAC Lycopodiella appressa Southern Appressed Club-Moss Leersia lenticularis Catchfly Grass OBL Liquidambar styraciflua Sweet-Gum FAC OBL Leersia oryzoides Rice Cut Grass OBL Liriodendron tulipifera Tuliptree FACU Lycopodiella prostrata Feather-Stem Club-Moss OBL Leersia virginica White Grass FACW Lloydia serotina Common Alp-Lily FACU Lycopus X sherardii OBL Lemna aequinoctialis Lesser Duckweed OBL Lobelia anatina Apache Lobelia FACW Lycopus americanus Cut-Leaf Water-Horehound OBL Lemna gibba Inflated Duckweed OBL Lobelia appendiculata Pale Lobelia FAC Lycopus asper Rough Water-Horehound OBL Lemna minor Common Duckweed OBL Lobelia berlandieri Berlandier's Lobelia FAC Lycopus rubellus Taper-Leaf Water-Horehound OBL Lycopus uniflorus Northern Water-Horehound OBL Melothria pendula Guadeloupe-Cucumber FAC Mollugo verticillata Green Carpetweed FAC Lycopus virginicus Virginia Water-Horehound OBL Menispermum canadense Canadian Moonseed FACU Momordica charantia Balsam-Pear FACU Lygodium japonicum Japanese Climbing Fern FACW X gracilis OBL Monarda fistulosa Oswego-Tea UPL Lyonia ligustrina Maleberry FACW Mentha X piperita FACW Monarda punctata Spotted Beebalm UPL Lyonia mariana Piedmont Staggerbush FAC Mentha X rotundifolia FAC Monardella odoratissima Alpine Mountainbalm UPL Lysimachia arvensis Scarlet Yellow-Loosestrife FACU Mentha aquatica Water Mint FACW Moneses uniflora Single-Delight FAC Lysimachia ciliata Fringed Yellow-Loosestrife FACW Mentha arvensis American Wild Mint FACW Monolepis nuttalliana Nuttall's Poverty-Weed FAC Lysimachia hybrida Lowland Yellow-Loosestrife OBL Mentha spicata FACW Monotropa uniflora One-Flower Indian-Pipe UPL Lysimachia lanceolata Lance-Leaf Yellow-Loosestrife FAC Mentha suaveolens Apple Mint FACW Montia chamissoi Chamisso's Candy-Flower OBL Lysimachia maritima Sea-Milkwort OBL Menyanthes trifoliata Buck-Bean OBL Montia linearis Linear-Leaf Candy-Flower FAC Lysimachia minima Chaffweed FACW Merremia dissecta Noyau-Vine FAC Montia parvifolia Little-Leaf Candy-Flower FACW Lysimachia nummularia Creeping-Jenny FACW Mertensia ciliata Tall Fringe Bluebells FACW Morella caroliniensis Evergreen Bayberry FAC Lysimachia quadriflora Four-Flower Yellow-Loosestrife FACW Mertensia franciscana Franciscan Bluebells FACW Morella cerifera Southern Bayberry FAC Lysimachia radicans Trailing Yellow-Loosestrife FACW Mertensia oblongifolia Languid-Lady FAC Morus alba White Mulberry FACU Lysimachia terrestris Swampcandles OBL Mertensia paniculata Tall Bluebells FAC Morus microphylla Texas Mulberry UPL Lysimachia thyrsiflora Tufted Yellow-Loosestrife OBL Mertensia viridis Green Bluebells UPL Morus rubra Red Mulberry FACU Lythrum alatum Wing-Angle Loosestrife OBL Micranthemum umbrosum Shade Mudflower OBL Muhlenbergia andina Fox-Tail Muhly FAC Lythrum californicum California Loosestrife OBL Micranthes ferruginea Russet-Hair Pseudosaxifrage OBL Muhlenbergia asperifolia Alkali Muhly FACW Lythrum ovalifolium Low Loosestrife FACW Micranthes lyallii Red-Stem Pseudosaxifrage OBL Muhlenbergia capillaris Hair-Awn Muhly FACU Lythrum salicaria Purple Loosestrife OBL Micranthes nidifica Peak Pseudosaxifrage FAC Muhlenbergia eludens Gravel-Bar Muhly FAC Maclura pomifera Osage-Orange FACU Micranthes occidentalis Mountain Pseudosaxifrage FAC Muhlenbergia expansa Spreading Muhly FACW Macroptilium atropurpureum Purple Bush-Bean FACU Micranthes odontoloma Streambank Pseudosaxifrage FACW Muhlenbergia filiformis Pullup Muhly FACW Madia glomerata Mountain Tarplant FACU Micranthes oregana Bog Pseudosaxifrage OBL Muhlenbergia frondosa Wire-Stem Muhly FACW Magnolia acuminata Cucumber-Tree FACU Micranthes palmeri Palmer's Pseudosaxifrage FAC Muhlenbergia glabrifloris Smooth Muhly FAC Magnolia grandiflora Southern Magnolia FAC Micranthes pensylvanica Eastern Swamp Pseudosaxifrage Muhlenbergia glomerata Spiked Muhly FACW Magnolia tripetala Umbrella Magnolia FAC FACW Muhlenbergia lindheimeri Lindheimer's Muhly FACW Magnolia virginiana Sweet-Bay OBL Micranthes rhomboidea Diamond-Leaf Pseudosaxifrage FAC Muhlenbergia mexicana Mexican Muhly FACW Mahonia aquifolium Holly-Leaf Oregon-Grape UPL Micranthes texana Texas Pseudosaxifrage FACW Muhlenbergia minutissima Least Muhly FAC Maianthemum canadense False Lily-of-the-Valley FACU Microstegium vimineum Japanese Stilt Grass FAC Muhlenbergia montana Mountain Muhly FACU Maianthemum racemosum Feathery False Solomon's-Seal FAC Microsteris gracilis Annual-Phlox UPL Muhlenbergia racemosa Green Muhly FACW Maianthemum stellatum Starry False Solomon's-Seal FACU Mikania scandens Climbing Hempvine FACW Muhlenbergia ramulosa Ponderosa Muhly FACU Maianthemum trifolium Three-Leaf False Solomon's-Seal Milium effusum American Millet Grass FACU Muhlenbergia reverchonii Seep Muhly FAC OBL Mimosa malacophylla Soft-Leaf Mimosa FACW Muhlenbergia richardsonis Matted Muhly FAC Malachra capitata Malva-de-Caballo FACU Mimosa strigillosa Powderpuff FAC Muhlenbergia rigens Deer Grass FACU Malaxis monophyllos White Adder's-Mouth Orchid FACW Mimulus alatus Sharp-Wing Monkey-Flower OBL Muhlenbergia schreberi Nimblewill FACU Malaxis unifolia Green Adder's-Mouth Orchid FAC Mimulus breviflorus Short-Flower Monkey-Flower FACW Muhlenbergia sericea Slender Muhly FACU Malvastrum coromandelianum Three-Lobe False Mallow FAC Mimulus floribundus Purple-Stem Monkey-Flower OBL Muhlenbergia sylvatica Woodland Muhly FACW Malvaviscus arboreus Wax-Mallow UPL Mimulus glabratus Round-Leaf Monkey-Flower OBL Muhlenbergia tenuiflora Slim-Flower Muhly FACU Malvaviscus penduliflorus Mazapan FAC Mimulus guttatus Seep Monkey-Flower OBL Muhlenbergia uniflora Bog Muhly OBL Malvella leprosa Alkali-Mallow FAC Mimulus moschatus Muskflower OBL Muhlenbergia utilis Aparejo Grass FACW Marrubium vulgare White Horehound FACU Mimulus ringens Allegheny Monkey-Flower OBL Muhlenbergia wrightii Wright's Muhly FACU Marshallia caespitosa Puffballs FAC Mimulus rubellus Little Red-Stem Monkey-Flower FACW Murdannia nudiflora Naked-Stem Dewflower FACW Marshallia graminifolia Grass-Leaf Barbara's-Buttons OBL Mimulus suksdorfii Miniature Monkey-Flower FACW Myosotis arvensis Rough Forget-Me-Not FAC Marsilea macropoda Big-Foot Water-Clover OBL Mimulus tilingii Subalpine Monkey-Flower OBL Myosotis asiatica Asian Forget-Me-Not FAC Marsilea mutica Australian Water-Clover OBL Mimulus washingtonensis Washington Monkey-Flower OBL Myosotis discolor Yellow Scorpion-Grass FACU Marsilea vestita Hairy Water-Clover OBL Minuartia muscorum Dixie Stitchwort FACU Myosotis laxa Bay Forget-Me-Not OBL Matricaria discoidea Pineapple-Weed FACU Minuartia obtusiloba Alpine Stitchwort FACU Myosotis macrosperma Large-Seed Forget-Me-Not FAC Matteuccia struthiopteris Ostrich Fern FACW Minuartia patula Pitcher's Stitchwort FAC Myosotis scorpioides True Forget-Me-Not OBL Mayaca fluviatilis Stream Bog-Moss OBL Minuartia rubella Boreal Stitchwort FAC Myosotis sylvatica Woodland Forget-Me-Not FACU Maytenus phyllanthoides Florida Mayten FAC Minuartia stricta Bog Stitchwort FAC Myosotis verna Spring Forget-Me-Not FAC Mazus pumilus Japanese Mazus FAC Mirabilis jalapa Marvel-of-Peru UPL Myosoton aquaticum Giant-Chickweed FAC Mecardonia acuminata Axil-Flower FACW Mirabilis nyctaginea Heart-Leaf Four-O'clock UPL Myosurus apetalus Bristly Mousetail FACW Mecardonia procumbens Baby-Jump-Up FACW sinensis Chinese Silver Grass FACU Myosurus minimus Tiny Mousetail FACW Medicago lupulina Black Medick FACU Mitchella repens Partridge-Berry FAC Myrica gale Sweetgale OBL Medicago polymorpha Toothed Medick FACU Mitella diphylla Two-Leaf Bishop's-Cap FACU Myriophyllum aquaticum Parrot's-Feather OBL Medicago sativa Alfalfa UPL Mitella nuda Bare-Stem Bishop's-Cap OBL Myriophyllum heterophyllum Two-Leaf Water-Milfoil OBL Megathyrsus maximus Guinea Grass FAC Mitella stauropetala Side-Flower Bishop's-Cap FAC Myriophyllum humile Low Water-Milfoil OBL Melia azedarach China-Berry FACU Mitracarpus hirtus Tropical Girdlepod FACU Myriophyllum pinnatum Cut-Leaf Water-Milfoil OBL Melilotus indicus Indian Sweet-Clover FACU Mitreola petiolata Lax Hornpod FACW Myriophyllum sibiricum Siberian Water-Milfoil OBL Melilotus officinalis Yellow Sweet-Clover FACU Mitreola sessilifolia Swamp Hornpod FACW Myriophyllum spicatum Eurasian Water-Milfoil OBL Melinis repens Creeping Molasses Grass UPL Modiola caroliniana Carolina Bristle-Mallow FAC Myriophyllum tenellum Slender Water-Milfoil OBL Melissa officinalis Lemonbalm UPL Moehringia lateriflora Blunt-Leaf Grove-Sandwort FACU Myriophyllum verticillatum Whorled Water-Milfoil OBL Melochia corchorifolia Chocolate-Weed FAC Moehringia macrophylla Large-Leaf Grove-Sandwort UPL Nabalus albus White Rattlesnake-Root FACU Melochia pyramidata Pyramid-Flower FAC Mollugo cerviana Thread-Stem Carpetweed FAC Nabalus altissimus Tall Rattlesnake-Root UPL Nabalus racemosus Purple Rattlesnake-Root FACU Oenothera parviflora Northern Evening-Primrose FACU Packera tampicana Great Plains Groundsel FACW Najas flexilis Wavy Waternymph OBL Oenothera perennis Small Evening-Primrose FAC Packera tomentosa Woolly Groundsel FACU Najas gracillima Slender Waternymph OBL Oenothera rhombipetala Greater Four-Point Evening-Primrose Panicum amarum Bitter Panic Grass FACU Najas guadalupensis Guadalupe Waternymph OBL FACU Panicum bergii Berg's Panic Grass FACW Najas marina Holly-Leaf Waternymph OBL Oenothera rosea Rose Evening-Primrose FACW Panicum brachyanthum Prairie Panic Grass FACU Najas minor Brittle Waternymph OBL Oenothera tetraptera Four-Wing Evening-Primrose FAC Panicum capillare Common Panic Grass FAC Nama jamaicense Jamaican-Weed FACW Oenothera villosa Hairy Evening-Primrose FACU Panicum coloratum Blue Panic Grass FAC Nama stenocarpum Mud Fiddleleaf FACW Oldenlandia boscii Bosc's Mille-Graines FACW Panicum dichotomiflorum Fall Panic Grass FAC Nama torynophyllum Matted Fiddleleaf FACW Oldenlandia uniflora Clustered Mille-Graines FACW Panicum diffusum West Indian Panic Grass FAC Nasturtium microphyllum One-Row Watercress OBL Onoclea sensibilis Sensitive Fern FACW Panicum flexile Wiry Panic Grass FACW Nasturtium officinale Watercress OBL Ophioglossum californicum California Adder's-Tongue FAC Panicum ghiesbreghtii Ghiesbreght's Panic Grass FACW Navarretia breweri Yellow Pincushion-Plant FAC Ophioglossum crotalophoroides Bulbous Panicum hallii Hall's Panic Grass FACU Navarretia intertexta Needle-Leaf Pincushion-Plant FACW Adder's-Tongue FAC Panicum hemitomon Maiden-Cane OBL Navarretia leucocephala White-Flower Pincushion-Plant OBL Ophioglossum engelmannii Limestone Adder's-Tongue FACU Panicum hillmanii Hillman's Panic Grass FACU Navarretia saximontana Rocky Mountain Pincushion-Plant Ophioglossum petiolatum Long-Stem Adder's-Tongue FACW Panicum philadelphicum Philadelphia Panic Grass FAC FACW Ophioglossum pusillum Northern Adder's-Tongue FACW Panicum repens Torpedo Grass FAC Nelumbo lutea American Lotus OBL Ophioglossum vulgatum Southern Adder's-Tongue FACW Panicum verrucosum Warty Panic Grass FACW Nelumbo nucifera Sacred Lotus OBL Oplismenus hirtellus Long-Leaf Basket Grass FACU Panicum virgatum Wand Panic Grass FAC Nemophila aphylla Small-Flower Baby-Blue-Eyes FAC Oplopanax horridus Devil's-Club FACU Parapholis incurva Curved Sickle Grass FACU Neoholmgrenia andina FACU Opuntia stricta Erect Prickly-Pear FACU Parentucellia viscosa Yellow Glandweed FAC Neokochia americana Green-Molly FAC Orbexilum pedunculatum Sampson's-Snakeroot FACU floridana Florida Pellitory FACU Neottia banksiana Northwestern Twayblade FACU Orbexilum simplex Single-Stem Leather-Root FAC Rillita Pellitory FACU Neottia bifolia Southern Twayblade FACW Ornithogalum umbellatum Sleepydick FACU Parietaria pensylvanica Pennsylvania Pellitory FAC Neottia convallarioides Broad-Lip Twayblade FACW Orobanche riparia River Broom-Rape FACW Parkinsonia aculeata Mexican Palo-Verde FAC Neottia cordata Heart-Leaf Twayblade FACU Orobanche uniflora Naked Broom-Rape UPL Parnassia asarifolia Kidney-Leaf Grass-of-Parnassus Nepeta cataria Catnip FACU Orthilia secunda Sidebells FACU OBL Nephrolepis exaltata Boston Sword Fern FACU Orthocarpus luteus Golden-Tongue Owl-Clover FACU Parnassia fimbriata Fringed Grass-of-Parnassus OBL Neptunia lutea Yellow Puff FACU Oryza sativa Cultivated Rice OBL Parnassia glauca Fen Grass-of-Parnassus OBL Neptunia microcarpa Little-Fruit Puff FAC Osmorhiza berteroi Mountain Sweet- FACU Parnassia grandifolia Large-Leaf Grass-of-Parnassus OBL Neptunia plena Water-Dead-and-Awake FACW Osmorhiza claytonii Hairy Sweet-Cicely FACU Parnassia kotzebuei Kotzebue's Grass-of-Parnassus Neptunia pubescens Tropical Puff FAC Osmorhiza longistylis Aniseroot FAC OBL Nesaea longipes Stalkflower FACW Osmorhiza purpurea Purple Sweet-Cicely FAC Parnassia palustris Marsh Grass-of-Parnassus OBL Nicotiana attenuata Coyote Tobacco FAC Osmunda claytoniana Interrupted Fern FAC Parnassia parviflora Small-Flower Grass-of-Parnassus Nicotiana glauca Tree Tobacco FAC Osmunda spectabilis Royal Fern OBL OBL Nicotiana obtusifolia Desert Tobacco FACU Osmundastrum cinnamomeum Fern FACW Parthenium hysterophorus Santa Maria Feverfew FAC Nicotiana plumbaginifolia Tex-Mex Tobacco FAC Ostrya knowltonii Knowlton's Hop-Hornbeam FAC Parthenocissus inserta Thicket-Creeper FAC Nicotiana repanda Fiddle-Leaf Tobacco FAC Ostrya virginiana Eastern Hop-Hornbeam FACU Parthenocissus quinquefolia Virginia-Creeper FACU Nicotiana tabacum Cultivated Tobacco UPL Oxalis corniculata Creeping Yellow Wood- FACU Pascopyrum smithii Western-Wheat Grass FACU Nomaphila stricta Stiff Bear-Grass OBL Oxalis dillenii Slender Yellow Wood-Sorrel FACU Paspalidium geminatum Egyptian Water Crown Grass OBL Nothoscordum bivalve Crowpoison FACU Oxalis stricta Upright Yellow Wood-Sorrel FACU Paspalum acuminatum Brook Crown Grass OBL Nuphar advena Yellow Pond-Lily OBL Oxypolis fendleri Fendler's Cowbane FACW Paspalum bifidum Pitchfork Crown Grass FAC Nuphar polysepala OBL Oxypolis rigidior Stiff Cowbane OBL Paspalum boscianum Bull Crown Grass FACW Nuphar variegata OBL Oxyria digyna Mountain-Sorrel FAC Paspalum conjugatum Sour Crown Grass FAC ampla Dot-Leaf Water-Lily OBL Oxytropis deflexa Pendant-Pod Locoweed FACU Paspalum denticulatum Pull-and-Be-Damned OBL Nymphaea elegans Tropical Royal-Blue Water-Lily OBL Oxytropis lambertii Stemless Locoweed UPL Paspalum dilatatum Golden Crown Grass FAC Nymphaea leibergii Dwarf Water-Lily OBL Oxytropis parryi Parry's Locoweed FACU Paspalum dissectum Mudbank Crown Grass OBL Nymphaea mexicana Banana Water-Lily OBL Oxytropis splendens Whorled Locoweed FACU Paspalum distichum Jointed Crown Grass FACW American White Water-Lily OBL Ozomelis trifida Pacific Mitrewort FAC Paspalum floridanum Florida Crown Grass FACW Nymphoides aquatica Big Floatingheart OBL Packera aurea Golden Groundsel FACW Paspalum hartwegianum Hartweg's Crown Grass FACW Nymphoides humboldtiana OBL Packera crocata Groundsel FAC Paspalum laeve Field Crown Grass FACW Nymphoides peltata Yellow Floatingheart OBL Packera debilis Weak-Stem Groundsel FACW Paspalum monostachyum Gulf Dune Crown Grass FACW Nyssa aquatica Water Tupelo OBL Packera dimorphophylla Two-Leaf Groundsel FACU Paspalum notatum Bahia Grass FAC Nyssa biflora Swamp Tupelo OBL Packera glabella Cress-Leaf Groundsel FACW Paspalum plicatulum Brown-Seed Crown Grass FAC Nyssa sylvatica Black Tupelo FAC Packera hartiana Hart's Groundsel FACW Paspalum praecox Early Crown Grass FACW Oenothera biennis King's-Cureall FACU Packera heterophylla Dwarf Arctic Groundsel FACU Paspalum pubiflorum Hairy-Seed Crown Grass FACW Oenothera canescens Spotted Evening-Primrose FAC Packera indecora Rayless Mountain Groundsel FACW Paspalum racemosum Peruvian Crown Grass FAC Oenothera coloradensis FAC Packera obovata Round-Leaf Groundsel FACU Paspalum repens Horse-Tail Crown Grass OBL Oenothera curtiflora Velvetweed UPL Packera pauciflora Rayless Alpine Groundsel FAC Paspalum setaceum Slender Crown Grass FAC Oenothera elata Hooker's Evening-Primrose FACW Packera paupercula Balsam Groundsel FAC Paspalum urvillei Vasey's Grass FACW Oenothera flava Long-Tube Evening-Primrose FACW Packera plattensis Prairie Groundsel FACU Paspalum vaginatum Seashore Crown Grass FACW Oenothera fruticosa Narrow-Leaf Evening-Primrose FAC Packera pseudaurea Streambank Groundsel FACW Paspalum virgatum Talquezal FACW Oenothera jamesii Trumpet Evening-Primrose FACW Packera spellenbergii Carrizo Creek Groundsel FACU foetida Scarlet-Fruit Passion-Flower FAC Oenothera kunthiana Kunth's Evening-Primrose FACU Packera streptanthifolia Rocky Mountain Groundsel UPL Passiflora suberosa Corky-Stem Passion-Flower UPL Oenothera laciniata Cut-Leaf Evening-Primrose FACU Packera subnuda Buek's Groundsel OBL Paulownia tomentosa Princesstree UPL Paxistima myrsinites Oregon Boxleaf FACU Phlox divaricata Wild Blue Phlox FACU Plantago heterophylla Slender Plantain FACW Pectiantia breweri FAC Phlox glaberrima Smooth Phlox FAC Plantago lanceolata English Plantain FAC Pectiantia pentandra FAC Phlox kelseyi Marsh Phlox FAC Plantago major Great Plantain FAC Pedicularis canadensis Canadian Lousewort FACU Phlox paniculata Fall Phlox FACU Plantago ovata Blond Plantain FAC Pedicularis contorta White Coil-Beak Lousewort FACU Phlox pilosa Downy Phlox FACU Plantago pusilla Dwarf Plantain FAC Pedicularis crenulata Purple-Flower Lousewort FACW Phragmites australis Common Reed FACW Plantago rhodosperma Red-Seed Plantain FACU Pedicularis fluviatilis Marsh Lousewort FACU Phragmites karka Tropical Reed FACW Plantago rugelii Black-Seed Plantain FACU Pedicularis groenlandica Bull Elephant's-Head OBL Phryma leptostachya American Lopseed FACU Plantago virginica Pale-Seed Plantain FACU Pedicularis lanceolata Swamp Lousewort OBL Phyla cuneifolia Wedgeleaf FAC Platanthera X smithii FAC Pedicularis parryi Parry's Lousewort FAC Phyla fruticosa Diamond-Leaf Frogfruit FAC Platanthera aquilonis Bog Orchid OBL Pedicularis procera Giant Lousewort FAC Phyla lanceolata Northern Frogfruit FACW Platanthera brevifolia Short-Leaf Fringed Orchid FACU Pedicularis scopulorum Rocky Mountain Lousewort FACW Phyla nodiflora Turkey-Tangle FAC Platanthera ciliaris Yellow Fringed Orchid FACW Pellaea ternifolia Trans-Pecos Cliffbrake FACU Phyllanthus caroliniensis Carolina Leaf-Flower FAC Platanthera clavellata Green Woodland Orchid OBL Peltandra virginica Green Arrow-Arum OBL Phyllanthus evanescens Bird-Seed Leaf-Flower FACW Platanthera cristata Crested Yellow Orchid OBL Penstemon attenuatus Sulphur Beardtongue FACU Phyllanthus urinaria Chamber-Bitter FAC Platanthera flava Pale-Green Orchid FACW Penstemon baccharifolius Baccharis-Leaf Beardtongue FACU Phyllodoce empetriformis Pink Mountain-Heath FACU Platanthera hookeri Hooker's Orchid FAC Penstemon digitalis Foxglove Beardtongue FACW Phyllodoce glanduliflora Yellow Mountain-Heath FACU Platanthera huronensis Lake Huron Green Orchid OBL Penstemon gracilis Lilac Beardtongue FACU Phyllostachys nigra Black Bamboo FACU Platanthera lacera Green Fringed Orchid FACW Penstemon laxiflorus Nodding Beardtongue FAC Physalis angulata Cut-Leaf Ground-Cherry FAC Platanthera leucophaea Prairie White Fringed Orchid OBL Penstemon lyallii Lyall's Beardtongue FACU Physalis philadelphica Mexican Ground-Cherry UPL Platanthera limosa Thurber's Bog Orchid OBL Penstemon pallidus Pale Beardtongue FACU Physalis pubescens Husk-Tomato FACU Platanthera nivea Snowy Orchid FACW Penstemon procerus Pincushion Beardtongue UPL Physocarpus monogynus Mountain Ninebark FACU Platanthera obtusata Blunt-Leaf Orchid FACW Penstemon rydbergii Meadow Beardtongue FAC Physocarpus opulifolius Atlantic Ninebark FACU Platanthera orbiculata Lesser Round-Leaf Orchid FAC Penstemon virgatus Upright Blue Beardtongue FACU Physostegia angustifolia Narrow-Leaf False Dragonhead FACW Platanthera psycodes Lesser Purple Fringed Orchid FACW Penstemon whippleanus Dark Beardtongue FACU Physostegia correllii Correll's False Dragonhead OBL Platanthera sparsiflora Canyon Bog Orchid FACW Penthorum sedoides Ditch-Stonecrop OBL Physostegia digitalis Finger False Dragonhead FACW Platanthera stricta Slender Bog Orchid FACW Perideridia gairdneri Common Yampah FACU Physostegia intermedia Slender False Dragonhead OBL Platanthera tescamnis Intermountain Bog Orchid OBL Perideridia parishii Parish's Yampah FAC Physostegia ledinghamii Ledingham's False Dragonhead Platanus occidentalis American Sycamore FAC frutescens Beefsteakplant FAC OBL Pleopeltis polypodioides Resurrection Fern FACU Peritoma lutea Yellow Beeplant FACU Physostegia parviflora Western False Dragonhead FACW Pluchea baccharis Rosy Camphorweed FACW Peritoma multicaulis Playa Beeplant FACW Physostegia pulchella Showy False Dragonhead FACW Pluchea camphorata Plowman's-Wort FACW Peritoma serrulata Rocky Mountain Beeplant FACU Physostegia virginiana Obedient-Plant FACW Pluchea foetida Stinking Camphorweed FACW Persea borbonia Red Bay FACW Phytolacca americana American Pokeweed FACU Pluchea odorata Sweetscent FACW Persea palustris Swamp Bay FACW Picea engelmannii Engelmann's Spruce FAC Pluchea sericea Arrow-Weed FAC Persicaria amphibia Water Smartweed OBL Picea glauca White Spruce FACU zeylanica Wild Leadwort FAC Persicaria arifolia Halberd-Leaf Tearthumb OBL Picea mariana Black Spruce FACW Poa abbreviata Northern Blue Grass FAC Persicaria bicornis Pink Knotweed FACW Picea pungens Blue Spruce FAC Poa alpina Alpine Blue Grass FACU Persicaria glabra Smooth Smartweed OBL Pilea fontana Lesser Clearweed OBL Poa annua Annual Blue Grass FACU Persicaria hydropiper Mild Water-Pepper OBL Pilea pumila Canadian Clearweed FAC Poa arctica Arctic Blue Grass FACW Persicaria hydropiperoides Swamp Smartweed OBL Pilularia americana American Pillwort OBL Poa arida Prairie Blue Grass FAC Persicaria lapathifolia Dock-Leaf Smartweed OBL macroceras California Butterwort OBL Poa autumnalis Autumn Blue Grass FAC Persicaria maculosa Spotted Lady's-Thumb FACW Pinguicula pumila Small Butterwort OBL Poa bulbosa Bulbous Blue Grass FACU Persicaria orientalis Kiss-Me-Over-the-Garden-Gate FACW Pinus banksiana Jack Pine FACU Poa chapmaniana Chapman's Blue Grass FACU Persicaria pensylvanica Pinkweed FACW Pinus contorta Lodgepole Pine FACU Flat-Stem Blue Grass FACU Persicaria punctata Dotted Smartweed OBL Pinus elliottii Slash Pine FAC Poa interior Inland Blue Grass FAC Persicaria robustior Stout Smartweed OBL Pinus palustris Long-Leaf Pine FAC Poa leptocoma Marsh Blue Grass OBL Persicaria sagittata Arrow-Leaf Tearthumb OBL Pinus ponderosa Ponderosa Pine UPL Poa nemoralis Forest Blue Grass FACU Persicaria setacea Bog Smartweed OBL Pinus resinosa Red Pine FACU Poa palustris Fowl Blue Grass FACW Persicaria virginiana Jumpseed FAC Pinus strobus Eastern White Pine FACU Poa pratensis Kentucky Blue Grass FACU Petasites frigidus Arctic Sweet-Colt's-Foot FAC Pinus taeda Loblolly Pine FAC Poa reflexa Nodding Blue Grass OBL Phacelia heterophylla Variable-Leaf Scorpion-Weed FAC Piperia dilatata Scentbottle FACW Poa secunda Curly Blue Grass FACU Phacelia laxa Coastal Scorpion-Weed FAC Piperia unalascensis Alaska Rein Orchid FACU Poa stenantha Narrow-Flower Blue Grass FAC Phalaris angusta Canary Grass FACW Piptochaetium avenaceum Black-Seed Spear Grass UPL Poa sylvestris Woodland Blue Grass FAC Phalaris aquatica Harding Grass FAC Pistia stratiotes Water-Lettuce OBL Poa trivialis Rough-Stalk Blue Grass FACW Phalaris arundinacea Reed Canary Grass FACW Pithecellobium dulce Monkeypod UPL Podagrostis humilis Alpine False Bent FACW Phalaris brachystachys Short-Spike Canary Grass FACW Pityopsis graminifolia Narrow-Leaf Silk-Grass FACU Podophyllum peltatum May-Apple FACU Phalaris canariensis Common Canary Grass FACU Plagiobothrys hispidulus Harsh Popcorn-Flower FACW Pogonia ophioglossoides Snake-Mouth Orchid OBL Phalaris caroliniana May Grass FACW Plagiobothrys leptocladus Alkali Popcorn-Flower FACW Polanisia dodecandra Red-Whisker Clammyweed FACU Phanopyrum gymnocarpon Savannah-Panic Grass OBL Planera aquatica Planertree OBL Polemonium foliosissimum Towering Jacob's-Ladder FAC Phegopteris connectilis Narrow Beech Fern FACU Planodes virginicum Virginia Winged Rockcress FAC Polemonium micranthum Annual Jacob's-Ladder FACU Phegopteris hexagonoptera Broad Beech Fern FAC Plantago arenaria Sand Plantain FACU Polemonium occidentale Western Jacob's-Ladder FACW Phleum alpinum Mountain Timothy FAC Plantago coronopus Buck-Horn Plantain FAC Polemonium reptans Greek-Valerian FAC Phleum pratense Common Timothy FACU Plantago elongata Prairie Plantain FACW Polygala ambigua Alternate Milkwort FACU Phlox carolina Thick-Leaf Phlox FACU Plantago eriopoda Red-Woolly Plantain FAC Polygala cruciata Drumheads OBL Polygala incarnata Procession-Flower FAC Potamogeton praelongus White-Stem Pondweed OBL Ptilimnium costatum Ribbed Mock Bishopweed OBL Polygala mariana Maryland Milkwort FACW Potamogeton pulcher Spotted Pondweed OBL Ptilimnium nuttallii Laceflower FACW Polygala polygama Racemed Milkwort FACU Potamogeton pusillus Small Pondweed OBL Puccinellia distans Spreading Alkali Grass FACW Polygala ramosa Low Pine-Barren Milkwort OBL Potamogeton richardsonii Red-Head Pondweed OBL Puccinellia lemmonii Lemmon's Alkali Grass FACW Polygala sanguinea Purple Milkwort FACW Potamogeton robbinsii Fern Pondweed OBL Puccinellia nuttalliana Nuttall's Alkali Grass OBL Polygala senega Seneca-Snakeroot FACU Potamogeton spirillus Spiral Pondweed OBL Pueraria montana Kudzu UPL Polygala tenella Swamp Milkwort FACW Potamogeton strictifolius Straight-Leaf Pondweed OBL Pycnanthemum albescens White-Leaf Mountain-Mint FAC Polygala verticillata Whorled Milkwort FACU Potamogeton vaseyi Vasey's Pondweed OBL Pycnanthemum muticum Clustered Mountain-Mint UPL Polygaloides paucifolia Gaywings FACU Potamogeton zosteriformis Flat-Stem Pondweed OBL Pycnanthemum tenuifolium Narrow-Leaf Mountain-Mint FAC Polygonatum biflorum King Solomon's-Seal FACU X nana FAC Pycnanthemum verticillatum Whorled Mountain-Mint FACW Polygonatum pubescens Hairy Solomon's-Seal FACU Potentilla anserina Silverweed FACW Pycnanthemum virginianum Virginia Mountain-Mint FAC Polygonum achoreum Leathery Knotweed FACU Potentilla argentea Silver-Leaf Cinquefoil FACU Pyrola americana American Wintergreen FACU Polygonum argyrocoleon Silver-Sheath Knotweed OBL Potentilla biennis Biennial Cinquefoil FACW Pyrola asarifolia Pink Wintergreen FACU Polygonum austiniae Mrs. Austin's Knotweed FACU Potentilla glaucophylla Mountain-Meadow Cinquefoil FACW Pyrola chlorantha Green-Flower Wintergreen FACU Polygonum aviculare Yard Knotweed FACU Potentilla gracilis Graceful Cinquefoil FAC Pyrola elliptica Shinleaf UPL Polygonum douglasii Douglas' Knotweed FACU Potentilla indica Indian-Strawberry FAC Pyrola minor Snowline Wintergreen FACU Polygonum engelmannii Engelmann's Knotweed FACU Potentilla norvegica Norwegian Cinquefoil FAC Pyrrocoma lanceolata Lance-Leaf Goldenweed FACU Polygonum erectum Erect Knotweed FAC Potentilla pensylvanica Pennsylvania Cinquefoil FACU Pyrrocoma uniflora Plantain Goldenweed FAC Polygonum kelloggii Kellogg's Knotweed FACW Potentilla plattensis Platte River Cinquefoil FACW Quercus X macnabiana FACU Polygonum minimum Zigzag Knotweed FAC Potentilla pulcherrima Soft Cinquefoil FAC Quercus alba Northern White Oak FACU Polygonum patulum Bellard's Knotweed FACW Potentilla rivalis Brook Cinquefoil FACW Quercus falcata Southern Red Oak FACU Polygonum ramosissimum Yellow-Flower Knotweed FACW Potentilla rubricaulis Rocky Mountain Cinquefoil FACU Quercus hemisphaerica Darlington's Oak FACW Polygonum sawatchense Sawatch Knotweed FACU Potentilla simplex Oldfield Cinquefoil UPL Quercus imbricaria Shingle Oak FAC Polygonum spergulariiforme Fall Knotweed FACU Potentilla supina Bushy Cinquefoil FACW Quercus laurifolia Laurel Oak FACW Polygonum striatulum Striped Knotweed FACW Potentilla thurberi Scarlet Cinquefoil FACW Quercus lyrata Overcup Oak OBL Polypogon elongatus Streambank Rabbit's-Foot Grass Poterium sanguisorba FACU Quercus macrocarpa Burr Oak FACU OBL Primula angustifolia Alpine Primrose FAC Quercus michauxii Swamp Chestnut Oak FACW Polypogon interruptus Ditch Rabbit's-Foot Grass OBL Primula egaliksensis Greenland Primrose FACW Quercus muehlenbergii Chinkapin Oak FAC Polypogon maritimus Maritime Rabbit's-Foot Grass FACW Primula incana Silvery Primrose FACW Quercus nigra Water Oak FAC Polypogon monspeliensis Annual Rabbit's-Foot Grass FACW Primula mistassinica Lake Mistassini Primrose FACW Quercus pagoda Cherry-Bark Oak FAC Polypogon viridis Beardless Rabbit's-Foot Grass FACW Primula parryi Brook Primrose FAC Quercus palustris Pin Oak FAC Polypremum procumbens Juniper-Leaf UPL Primula rusbyi Rusby's Primrose FAC Quercus phellos Willow Oak FACW Polystichum acrostichoides Christmas Fern FACU louisiana Ram's-Horn FACU Quercus prinoides Dwarf Chinkapin Oak UPL Polystichum lonchitis Northern Holly Fern FACU Prosartes trachycarpa Rough-Fruit Fairybells UPL Quercus rubra Northern Red Oak FACU Polystichum munitum Pineland Sword Fern FACU Proserpinaca palustris Marsh Mermaidweed OBL Quercus shumardii Shumard's Oak FAC Pontederia cordata Pickerelweed OBL Proserpinaca pectinata Comb-Leaf Mermaidweed OBL Quercus similis Bottom-Land Post Oak FACW Populus X acuminata FAC Prosopis glandulosa Honey Mesquite FACU Quercus stellata Post Oak FACU Populus X hinckleyana FAC Prosopis pubescens American Screw-Bean FAC Quercus texana Texas Red Oak FACW Populus angustifolia Narrow-Leaf Cottonwood FACW Prosopis velutina Velvet Mesquite FACU Quercus virginiana Live Oak FACU Populus balsamifera Balsam Poplar FACW Prunella vulgaris Common Selfheal FAC Quincula lobata Chinese-Lantern UPL Populus deltoides Eastern Cottonwood FAC Prunus americana American Plum UPL Ranunculus abortivus Kidney-Leaf Buttercup FAC Populus grandidentata Big-Tooth Aspen FACU Prunus avium Sweet Cherry UPL Ranunculus acriformis Sharp-Leaf Buttercup FACW Populus tremuloides Quaking Aspen FAC Prunus caroliniana Carolina Laurel Cherry FACU Ranunculus acris Tall Buttercup FACW Portulaca grandiflora Rose-Moss UPL Prunus emarginata Bitter Cherry FAC Ranunculus adoneus Alpine Buttercup FACW Portulaca halimoides Silk-Cotton Purslane FACW Prunus nigra Canadian Plum FACU Ranunculus alismifolius Water-Plantain Buttercup OBL Portulaca oleracea Little-Hogweed FAC Prunus padus European Bird Cherry UPL Ranunculus aquatilis White Water-Crowfoot OBL Portulaca pilosa Kiss-Me-Quick FACU Prunus pensylvanica Fire Cherry FACU Ranunculus arcticus Northern Buttercup OBL Portulaca umbraticola Wing-Pod Purslane FAC Prunus serotina Black Cherry FACU Ranunculus bulbosus St. Anthony's-Turnip FAC Potamogeton X faxonii OBL Prunus virginiana Choke Cherry FACU Ranunculus cardiophyllus Heart-Leaf Buttercup FACW Potamogeton X nericus OBL Psathyrostachys juncea Russian-Wild Rye FACU Ranunculus eschscholtzii Spruce-Fir Buttercup FACW Potamogeton X spathuliformis OBL Pseudognaphalium canescens Wright's Rabbit-Tobacco UPL Ranunculus fascicularis Early Buttercup FAC Potamogeton alpinus Reddish Pondweed OBL Pseudognaphalium luteoalbum Jersey Rabbit-Tobacco FAC Ranunculus flabellaris Greater Yellow Water Buttercup Potamogeton amplifolius Large-Leaf Pondweed OBL Pseudognaphalium stramineum OBL Potamogeton berchtoldii Little Aguja Pondweed OBL Cotton-Batting-Plant FAC Ranunculus flammula Greater Creeping Spearwort FACW Potamogeton crispus Curly Pondweed OBL Pseudolycopodiella caroliniana Carolina False Clubmoss FACW Ranunculus glaberrimus Sagebrush Buttercup FAC Potamogeton diversifolius Waterthread OBL Pseudotsuga menziesii Douglas-Fir FACU Ranunculus gmelinii Lesser Yellow Water Buttercup FACW Potamogeton epihydrus Ribbon-Leaf Pondweed OBL Psilactis asteroides Bare-Ray-Aster FACW Ranunculus harveyi Harvey's Buttercup FACU Potamogeton foliosus Leafy Pondweed OBL Psilocarphus brevissimus Dwarf Woollyheads FACW Ranunculus hispidus Bristly Buttercup FACW Potamogeton friesii Flat-Stalk Pondweed OBL Psilotum nudum Whisk Fern FACW Ranunculus hydrocharoides Frog-Bit Buttercup OBL Potamogeton gramineus Grassy Pondweed OBL Ptelea trifoliata Common Hoptree FAC Ranunculus hyperboreus Far-Northern Buttercup OBL Potamogeton illinoensis Illinois Pondweed OBL Pteridium aquilinum Northern Bracken Fern FACU Ranunculus inamoenus Graceful Buttercup FACW Potamogeton natans Broad-Leaf Pondweed OBL Pteris vittata Ladder Brake FAC Ranunculus jovis Hillside Buttercup FACU Potamogeton nodosus Long-Leaf Pondweed OBL Pterocaulon virgatum Wand Blackroot FAC Ranunculus laxicaulis Buttercup OBL Potamogeton obtusifolius Blunt-Leaf Pondweed OBL Ptilimnium capillaceum Herbwilliam FACW Ranunculus longirostris Long-Beak Water-Crowfoot OBL Ranunculus macauleyi Rocky Mountain Buttercup FACW Rhynchospora leptocarpa Slender-Fruit Beak Sedge OBL Rubus argutus Saw-Tooth Blackberry FAC Ranunculus macounii Macoun's Buttercup OBL Rhynchospora macra Large Beak Sedge OBL Rubus arizonensis Arizona Dewberry FACU Ranunculus macranthus Large Buttercup FACW Rhynchospora macrostachya Tall Horned Beak Sedge OBL Rubus armeniacus Himalayan Blackberry FAC Ranunculus micranthus Rock Buttercup FACU Rhynchospora microcarpa Southern Beak Sedge FACW Rubus arvensis Field Blackberry FAC Ranunculus muricatus Spiny-Fruit Buttercup FACW Rhynchospora miliacea Millet Beak Sedge OBL Rubus baileyanus Bailey's Dewberry FACU Ranunculus orthorhynchus Straight-Beak Buttercup FACW Rhynchospora mixta Mingled Beak Sedge OBL Rubus bushii Bush's Blackberry FACU Ranunculus parviflorus Small-Flower Buttercup FAC Rhynchospora nitens Short-Beak Beak Sedge OBL Rubus flagellaris Whiplash Dewberry UPL Ranunculus pensylvanicus Pennsylvania Buttercup FACW Rhynchospora nivea Showy Whitetop FACW Rubus idaeus Common Red Raspberry FACU Ranunculus platensis Prairie Buttercup FAC Rhynchospora oligantha Feather-Bristle Beak Sedge OBL Rubus laciniatus Cut-Leaf Blackberry FACU Ranunculus pusillus Low Spearwort OBL Rhynchospora perplexa Pineland Beak Sedge OBL Rubus leucodermis White-Stem Raspberry FAC Ranunculus pygmaeus Dwarf Buttercup FACW Rhynchospora plumosa Plumed Beak Sedge FACW Rubus oklahomus Oklahoma Blackberry FAC Ranunculus recurvatus Blisterwort FACW Rhynchospora pusilla Fairy Beak Sedge FACW Rubus parviflorus Western Thimble-Berry FACU Ranunculus repens Creeping Buttercup FACW Rhynchospora rariflora Few-Flower Beak Sedge OBL Rubus pedatus Strawberry-Leaf Raspberry FAC Ranunculus sardous Hairy Buttercup FAC Rhynchospora recognita Coarse Globe Beak Sedge FACW Rubus pensilvanicus Pennsylvania Blackberry FAC Ranunculus sceleratus Cursed Buttercup OBL Rhynchospora scirpoides Long-Beak Beak Sedge OBL Rubus pubescens Dwarf Red Raspberry FACW Ranunculus subrigidus Short-Beak Water-Crowfoot OBL Rhynchospora stenophylla Coastal-Plain Beak Sedge OBL Rubus setosus Setose Blackberry FACW Ranunculus sulphureus Sulphur Buttercup OBL Ribes americanum Wild Black Currant FACW Rubus suus Branched Blackberry FAC Ranunculus trichophyllus Thread-Leaf Water-Crowfoot OBL Ribes aureum Golden Currant FACU Rubus trivialis Southern Dewberry FACU Ranunculus uncinatus Woodland Buttercup FACW Ribes cynosbati Eastern Prickly Gooseberry FACU Rudbeckia fulgida Orange Coneflower FAC Rayjacksonia phyllocephala Camphor Daisy FAC Ribes glandulosum Skunk Currant OBL Rudbeckia hirta Black-Eyed-Susan FACU Reynoutria X bohemica FACU Ribes hirtellum Hairy-Stem Gooseberry FAC Rudbeckia laciniata Green-Head Coneflower FAC Reynoutria japonica Japanese-Knotweed FACU Ribes hudsonianum Northern Black Currant OBL Rudbeckia maxima Great Coneflower FACW Reynoutria sachalinensis Giant-Knotweed UPL Ribes inerme White-Stem Gooseberry FACW Rudbeckia missouriensis Missouri Orange Coneflower UPL Rhamnus alnifolia Alder-Leaf Buckthorn FACW Ribes lacustre Bristly Black Gooseberry FACW Rudbeckia occidentalis Western Coneflower FAC Rhamnus cathartica European Buckthorn FACU Ribes laxiflorum Trailing Black Currant FACU Rudbeckia subtomentosa Sweet Coneflower FAC Rhamnus lanceolata Lance-Leaf Buckthorn FAC Ribes oxyacanthoides Canadian Gooseberry FACU Rudbeckia triloba Brown-Eyed-Susan FACU Rhexia lutea Yellow Meadow-Beauty FACW Ribes triste Swamp Red Currant OBL Ruellia caroliniensis Carolina Wild Petunia FAC Rhexia mariana Maryland Meadow-Beauty FACW Ribes viscosissimum Sticky Currant FACU Ruellia humilis Fringe-Leaf Wild Petunia FAC Rhexia virginica Handsome-Harry OBL Ribes wolfii Winaha Currant FAC Ruellia malacosperma Soft-Seed Wild Petunia FACW Rhinanthus minor Little Yellow-Rattle FACU Ricinus communis Castor-Bean FACU Ruellia simplex Linear-Leaf Wild Petunia FAC Red Mangrove OBL Rivina humilis Rougeplant FAC Ruellia strepens Limestone Wild Petunia FAC Rhodiola integrifolia Entire-Leaf Rosewort FACU Robinia pseudoacacia Black Locust UPL Rumex acetosella Common Sheep Sorrel FAC Rhodiola rhodantha Queen's-Crown FAC Romanzoffia sitchensis Sitka Mistmaiden FACW Rumex altissimus Pale Dock FAC Rhododendron albiflorum Cascade Azalea FACW Rorippa aquatica Lakecress OBL Rumex britannica Greater Water Dock OBL Rhododendron canescens Mountain Azalea FACW Rorippa austriaca Austrian Yellowcress FACW Rumex californicus California Willow Dock FACW Rhododendron groenlandicum Rusty Labrador-Tea FACW Rorippa calycina Persistent- Yellowcress OBL Rumex chrysocarpus Amamastla FACW Rhododendron prinophyllum Early Azalea FAC Rorippa curvipes Blunt-Leaf Yellowcress OBL Rumex conglomeratus Sharp Dock FACW Rhododendron viscosum Clammy Azalea FACW Rorippa curvisiliqua Curve-Pod Yellowcress OBL Rumex crispus Curly Dock FAC Rhus aromatica Fragrant UPL Rorippa palustris Bog Yellowcress OBL Rumex densiflorus Dense-Flower Dock FACW Rhus copallinum Winged Sumac UPL Rorippa ramosa Durango Yellowcress FACW Rumex dentatus Toothed Dock FACU Rhynchospora alba White Beak Sedge OBL Rorippa sessiliflora Stalkless Yellowcress OBL Rumex fueginus Tierra del Fuego Dock FACW Rhynchospora brachychaeta West Indian Beak Sedge OBL Rorippa sinuata Spreading Yellowcress FACW Rumex hastatulus Heart-Wing Sorrel FAC Rhynchospora caduca Angle-Stem Beak Sedge OBL Rorippa sphaerocarpa Round-Fruit Yellowcress OBL Rumex lapponicus Lapland Sorrel FAC Rhynchospora capillacea Needle Beak Sedge OBL Rorippa sylvestris Creeping Yellowcress FACW Rumex longifolius Door-Yard Dock FAC Rhynchospora capitellata Brownish Beak Sedge OBL Rorippa tenerrima Modoc Yellowcress FAC Rumex mexicanus Mexican Dock FAC Rhynchospora cephalantha Bunched Beak Sedge OBL Rorippa teres Southern Marsh Yellowcress OBL Rumex obtusifolius Bitter Dock FACW Rhynchospora chalarocephala Loose-Head Beak Sedge OBL Rosa acicularis Prickly Rose FACU Rumex occidentalis Western Dock OBL Rhynchospora colorata Narrow-Leaf Whitetop FACW Rosa arkansana Prairie Rose FACU Rumex paucifolius Alpine Sheep Sorrel FAC Rhynchospora corniculata Short-Bristle Horned Beak Sedge Rosa blanda Smooth Rose FACU Rumex pulcher Fiddle Dock FACW OBL Rosa bracteata Chickasaw Rose FACU Rumex spiralis Winged Dock FACW Rhynchospora divergens Spreading Beak Sedge OBL Rosa carolina Carolina Rose FACU Rumex stenophyllus Narrow-Leaf Dock FACW Rhynchospora fascicularis Fascicled Beak Sedge OBL Rosa gymnocarpa Bald-Hip Rose UPL Rumex triangulivalvis Triangular-Valved Dock FACW Rhynchospora filifolia Thread-Leaf Beak Sedge FAC Rosa multiflora Rambler Rose UPL Rumex venosus Veiny Dock FAC Rhynchospora fusca Brown Beak Sedge OBL Rosa nutkana Nootka Rose FACU Rumex verticillatus Swamp Dock FACW Rhynchospora globularis Globe Beak Sedge FACW Rosa palustris Swamp Rose OBL Ruppia cirrhosa Spiral Ditch-Grass OBL Rhynchospora glomerata Clustered Beak Sedge OBL Rosa rubiginosa Sweetbrier UPL Ruppia maritima Beaked Ditch-Grass OBL Rhynchospora gracilenta Slender Beak Sedge OBL Rosa setigera Climbing Rose FACU Sabal minor Dwarf Palmetto FACW Rhynchospora grayi Gray's Beak Sedge FAC Rosa woodsii Woods' Rose FACU Sabal palmetto Cabbage Palmetto FACW Rhynchospora harveyi Harvey's Beak Sedge FAC Rotala ramosior Lowland Toothcup OBL Sabatia angularis Rose-Pink FAC Rhynchospora indianolensis Indianola Beak Sedge FACW Rottboellia cochinchinensis Itch Grass FACU Sabatia arenicola Sand Rose-Gentian FACW Rhynchospora inexpansa Nodding Beak Sedge FACW Rubus allegheniensis Allegheny Blackberry UPL Sabatia campanulata Slender Rose-Gentian FACW Rhynchospora inundata Narrow-Fruit Horned Beak Sedge Rubus alumnus Oldfield Blackberry FAC Sabatia campestris Texas-Star FACU OBL Rubus apogaeus Falling Dewberry FACU Sabatia gentianoides Pinewoods Rose-Gentian FACW Rhynchospora latifolia Sand-Swamp Whitetop OBL Rubus arcticus Northern Blackberry FACW Saccharum alopecuroides Silver Plume Grass FACW Saccharum baldwinii Narrow Plume Grass FACW Salix pseudomonticola False Mountain Willow FACW Schoenoplectus pungens Three-Square OBL Saccharum brevibarbe Short-Beard Plume Grass FACW Salix purpurea Purple Willow OBL Schoenoplectus purshianus Weak-Stalk Club-Rush OBL Saccharum giganteum Giant Plume Grass FACW Salix pyrifolia Balsam Willow OBL Schoenoplectus robustus Seaside Club-Rush OBL Saccharum officinarum Sugar-Cane UPL Salix scouleriana Scouler's Willow FACU Schoenoplectus saximontanus Rocky Mountain Club-Rush OBL Saccharum ravennae Ranenna Grass UPL Salix serissima Autumn Willow OBL Schoenoplectus smithii Smith's Club-Rush OBL Sacciolepis striata American Cupscale OBL Salix sitchensis Sitka Willow FACW Schoenoplectus subterminalis Swaying Club-Rush OBL Sagina decumbens Trailing Pearlwort FAC Salix thurberi FAC Schoenoplectus tabernaemontani Sagina nivalis Snow Pearlwort FACW Salix wolfii Idaho Willow FACW Soft-Stem Club-Rush OBL Sagina procumbens Bird-Eye Pearlwort FACW Salsola kali Russian-Thistle FACU Schoenoplectus torreyi Torrey's Club-Rush OBL Sagina saginoides Alpine Pearlwort FACW Salsola tragus Prickly Russian-Thistle FACU Schoenus nigricans Black Bog-Rush OBL Sagittaria ambigua Kansas Arrowhead OBL Salvia lycioides Canyon Sage FACU Scirpus atrocinctus Black-Girdle Bulrush OBL Sagittaria brevirostra Short-Beak Arrowhead OBL Salvia lyrata Lyre-Leaf Sage FAC Scirpus atrovirens Dark-Green Bulrush OBL Sagittaria calycina Hooded Arrowhead OBL Salvia pentstemonoides Big Red Sage FACW Scirpus cyperinus Cottongrass Bulrush OBL Sagittaria chapmanii Chapman's Arrowhead OBL Salvinia minima Water-Spangles OBL Scirpus georgianus Georgia Bulrush OBL Sagittaria cristata Crested Arrowhead OBL Salvinia molesta Kariba-Weed OBL Scirpus hattorianus Mosquito Bulrush OBL Sagittaria cuneata Arum-Leaf Arrowhead OBL Sambucus nigra Black Elder FAC Scirpus microcarpus Red-Tinge Bulrush OBL Sagittaria demersa Chihuahuan Arrowhead OBL Sambucus racemosa Red Elder FACU Scirpus nevadensis Nevada Bulrush OBL Sagittaria graminea Grass-Leaf Arrowhead OBL Samolus ebracteatus Limewater Brookweed FACW Scirpus pallidus Pale Bulrush OBL Sagittaria lancifolia Bull-Tongue Arrowhead OBL Samolus parviflorus OBL Scirpus pedicellatus Stalked Bulrush OBL Sagittaria latifolia Duck-Potato OBL Sanguinaria canadensis Bloodroot UPL Scirpus pendulus Rufous Bulrush OBL Sagittaria longiloba Long-Barb Arrowhead OBL Sanicula canadensis Canadian Black-Snakeroot FACU Scleranthus annuus Annual Knawel FACU Sagittaria papillosa Nipple-Bract Arrowhead OBL Sanicula marilandica Maryland Black-Snakeroot FACU Scleria ciliata Fringed Nut-Rush FAC Sagittaria platyphylla Delta Arrowhead OBL Sanicula odorata Clustered Black-Snakeroot FAC Scleria distans River-Swamp Nut-Rush OBL Sagittaria rigida Sessile-Fruit Arrowhead OBL Sapindus saponaria Wing-Leaf Soapberry FACU Scleria georgiana Slender-Fruit Nut-Rush FACW bigelovii Dwarf Saltwort OBL Saponaria officinalis Bouncing-Bett FACU Scleria muehlenbergii Muehlenberg's Nut-Rush OBL Salicornia rubra Red Saltwort OBL Sarcobatus vermiculatus Greasewood FAC Scleria oligantha Little-Head Nut-Rush FAC Salix X fragilis FAC Sarcocornia ambigua Chickenclaws OBL Scleria pauciflora Few-Flower Nut-Rush FACW Salix X pendulina FACW Sarcocornia utahensis Utah Swampfire FACW Scleria reticularis Netted Nut-Rush FACW Salix alba White Willow FACW alata Yellow-Trumpets OBL Scleria triglomerata Whip Nut-Rush FAC Salix amygdaloides Peach-Leaf Willow FACW Sarracenia purpurea Purple Pitcherplant OBL Scleria verticillata Low Nut-Rush OBL Salix arizonica Arizona Willow OBL albidum Sassafras FACU Scolochloa festucacea Common River Grass OBL Salix atrocinerea Smooth-Twig Gray Willow FACW Saururus cernuus Lizard's-Tail OBL Scoparia dulcis Licorice-Weed FACU Salix barclayi Barclay's Willow OBL Saxifraga adscendens Wedge-Leaf Saxifrage FACW Scrophularia lanceolata Lance-Leaf Figwort FAC Salix bebbiana Gray Willow FACW Saxifraga austromontana Matted Saxifrage FACU Scrophularia marilandica Carpenter's-Square FACU Salix candida Sage Willow OBL Saxifraga caespitosa Tufted Alpine Saxifrage FACU Scutellaria cardiophylla Gulf Skullcap FAC Salix caroliniana Carolina Willow FACW Saxifraga cernua Nodding Saxifrage FACU Scutellaria galericulata Hooded Skullcap OBL Salix cinerea Large Gray Willow FACW Saxifraga chrysantha Golden Saxifrage FACU Scutellaria integrifolia Helmet-Flower FACW Salix discolor Pussy Willow FACW Saxifraga hirculus Yellow Marsh Saxifrage OBL Scutellaria lateriflora Mad Dog Skullcap FACW Salix drummondiana Drummond's Willow FACW Saxifraga mertensiana Woodland Saxifrage OBL Scutellaria ovata Heart-Leaf Skullcap FACU Salix eriocephala Missouri Willow FACW Saxifraga oppositifolia Purple Mountain Saxifrage FAC Scutellaria parvula Small Skullcap UPL Salix exigua Narrow-Leaf Willow FACW Saxifraga rivularis Alpine-Brook Saxifrage FACW Scutellaria racemosa South American Skullcap FACW Salix exilifolia Yew-Leaf Willow FAC Scaevola plumieri Gullfeed FAC Scutellaria thieretii Thieret's Skullcap FACW Salix famelica FACW Sceptridium biternatum Sparse-Lobe Grape Fern FAC Sedum pulchellum Widow's-Cross FACU Salix farriae Farr's Willow OBL Sceptridium dissectum Cut-Leaf Grape Fern FAC Selaginella apoda Meadow Spike-Moss FACW Salix geyeriana Geyer's Willow OBL Sceptridium multifidum Leathery Grape Fern FAC Selenia dissecta Texas Selenia FACW Salix glauca Gray-Leaf Willow FACW Schedonorus arundinaceus Tall False Rye Grass FACU Selenia grandis Large Selenia FACW Salix gooddingii Goodding's Black Willow FACW Schedonorus pratensis Meadow False Rye Grass FACU Selenia jonesii Jones' Selenia FACW Salix humilis Prairie Willow FACU Scheuchzeria palustris Rannoch-Rush OBL Senecio amplectens Showy Alpine Ragwort FACW Salix interior Sandbar Willow FACW molle Peruvian Peppertree FACU Senecio crassulus Thick-Leaf Ragwort FACU Salix irrorata Dewy-Stem Willow FACW Schinus terebinthifolia Brazilian Peppertree FAC Senecio eremophilus Desert Ragwort FAC Salix lasiandra Pacific Willow FACW Schizachne purpurascens False Melic Grass FACU Senecio hieraciifolius American Burnweed FACU Salix lasiolepis Arroyo Willow FACW Schizachyrium littorale Dune False Bluestem FACW Senecio hydrophiloides Stout Meadow Ragwort FACW Salix ligulifolia Strap-Leaf Willow FACW Schizachyrium scoparium Little False Bluestem FACU Senecio hydrophilus Alkali-Marsh Ragwort OBL Salix lucida Shining Willow FACW Schoenolirion croceum Yellow Sunnybell OBL Senecio integerrimus Lamb-Tongue Ragwort FAC Salix lutea Yellow Willow FACW Schoenolirion wrightii Texas Sunnybell FACW Senecio lugens Small Black-Tip Ragwort FACW Salix maccalliana Mccalla's Willow OBL Schoenoplectus acutus Hard-Stem Club-Rush OBL Senecio serra Tall Ragwort FACW Salix melanopsis Dusky Willow FACW Schoenoplectus americanus Chairmaker's Club-Rush OBL Senecio sphaerocephalus Mountain-Marsh Ragwort FAC Salix monticola Park Willow OBL Schoenoplectus californicus California Club-Rush OBL Senecio triangularis Arrow-Leaf Ragwort OBL Salix nigra Black Willow FACW Schoenoplectus deltarum Delta Club-Rush OBL Senecio vulgaris Old-Man-in-the-Spring FACU Salix pedicellaris Bog Willow OBL Schoenoplectus erectus Sharp-Scale Club-Rush OBL Senegalia greggii Long-Flower Catclaw UPL Salix pellita Satiny Willow FACW Schoenoplectus fluviatilis River Club-Rush OBL Senna marilandica Maryland Wild Sensitive-Plant FAC Salix petiolaris Meadow Willow OBL Schoenoplectus hallii Hall's Club-Rush OBL Senna obtusifolia Coffeeweed FACU Salix planifolia Tea-Leaf Willow OBL Schoenoplectus heterochaetus Pale Great Club-Rush OBL Senna occidentalis Septicweed UPL Salix prolixa Mackenzie's Willow FACW Schoenoplectus maritimus Saltmarsh Club-Rush OBL Senna pendula Valamuerto FAC Sesbania drummondii Poison-Bean FACW Solanum erianthum Potato-Tree FAC Spiraea tomentosa Steeplebush FACW Sesbania herbacea Peatree FACW Solanum ptychanthum Eastern Black Nightshade FACU Spiranthes brevilabris Texas Ladies'-Tresses FAC Sesbania punicea Purple River-Hemp FACW Solidago altissima Tall Goldenrod FACU Spiranthes cernua White Nodding Ladies'-Tresses FACW Sesbania vesicaria Bagpod FAC Solidago arguta Atlantic Goldenrod FACU Spiranthes diluvialis Diluvim Ladies'-Tresses FACW Sesuvium maritimum Slender Sea-Purslane FACW Solidago caesia Wreath Goldenrod FACU Spiranthes lacera Northern Slender Ladies'-Tresses Sesuvium portulacastrum Shoreline Sea-Purslane FACW Solidago canadensis Canadian Goldenrod FACU FAC Sesuvium trianthemoides Texas Sea-Purslane OBL Solidago flexicaulis Zigzag Goldenrod FACU Spiranthes laciniata Lace-Lip Ladies'-Tresses OBL Sesuvium verrucosum Verrucose Sea-Purslane FACW Solidago gigantea Late Goldenrod FAC Spiranthes lucida Shining Ladies'-Tresses FACW Setaria adhaerens Adherent Bristle Grass UPL Solidago lepida Western Canada Goldenrod FACU Spiranthes magnicamporum Great Plains Ladies'-Tresses FAC Setaria faberi Japanese Bristle Grass UPL Solidago multiradiata Rocky Mountain Goldenrod FACU Spiranthes odorata Marsh Ladies'-Tresses OBL Setaria italica Italian Bristle Grass FACU Solidago patula Round-Leaf Goldenrod OBL Spiranthes ovalis October Ladies'-Tresses FAC Setaria magna Giant Bristle Grass FACW Solidago riddellii Riddell's Goldenrod OBL Spiranthes praecox Green-Vein Ladies'-Tresses FACW Setaria parviflora Marsh Bristle Grass FAC Solidago rigida Hard-Leaf Flat-Top-Goldenrod FACU Spiranthes romanzoffiana Hooded Ladies'-Tresses OBL Setaria pumila Yellow Bristle Grass FACU Solidago rugosa Wrinkle-Leaf Goldenrod FAC Spiranthes tuberosa Little Ladies'-Tresses UPL Setaria verticillata Rough Bristle Grass FAC Solidago sempervirens Seaside Goldenrod FACW Spiranthes vernalis Spring Ladies'-Tresses FACW Seymeria cassioides Yaupon Black-Senna FAC Solidago simplex Mt. Albert Goldenrod FACU Spirodela polyrhiza Common Duckmeat OBL Shepherdia argentea Silver Buffalo-Berry UPL Solidago stricta Wand Goldenrod OBL airoides Alkali-Sacaton FAC Shepherdia canadensis Russet Buffalo-Berry FACU Solidago uliginosa Bog Goldenrod OBL Sporobolus cryptandrus Sand Dropseed FACU Shinnersia rivularis Rio Grande Shinner's Aster OBL Soliva sessilis Lawn Burrweed UPL Sporobolus diandrus Tussock Dropseed UPL Sibbaldia procumbens Creeping-Glow-Wort FACU Sonchus arvensis Field Sow-Thistle FAC Sporobolus domingensis Coral Dropseed FACU Sibbaldia tridentata Shrubby-Fivefingers FACU Sonchus asper Spiny-Leaf Sow-Thistle FAC Sporobolus flexuosus Mesa Dropseed FAC Sicyos angulatus One-Seed Burr-Cucumber FACW Sonchus oleraceus Common Sow-Thistle UPL Sporobolus giganteus Giant Dropseed UPL Sida acuta Common-Wireweed UPL Sophora tomentosa Yellow Necklacepod UPL Sporobolus heterolepis Prairie Dropseed UPL Sida rhombifolia Cuban-Jute FACU Sophronanthe pilosa Shaggy False Hedge-Nettle FACW Sporobolus indicus Smut Grass FACU Sida spinosa Prickly Fanpetals UPL Sorbus decora Northern Mountain-Ash FAC Sporobolus neglectus Small Dropseed UPL Sidalcea candida White Checkerbloom FAC Sorbus scopulina Cascade Mountain-Ash FACU Sporobolus pyramidatus Target Dropseed FAC Sidalcea neomexicana Rocky Mountain Checkerbloom FACW Sorbus sitchensis Sitka Mountain-Ash FAC Sporobolus texanus Texas Dropseed FAC Sideroxylon celastrinum Saffron-Plum FAC Sorghastrum nutans Yellow Indian Grass FACU Sporobolus virginicus Seashore Dropseed FACW Sideroxylon lanuginosum Gum Bully FACU Sorghum bicolor Broom-Corn FACU Sporobolus wrightii Wright's Dropseed FAC Silene acaulis Cushion-Pink FAC Sorghum halepense Johnson Grass FACU Stachys crenata Mouse's-Ear FAC Silene menziesii White Catchfly UPL Sparganium americanum American Burr-Reed OBL Stachys floridana Florida Hedge-Nettle FAC Silene nivea Snowy Catchfly FACW Sparganium androcladum Branched Burr-Reed OBL Stachys pilosa Hairy Hedge-Nettle FACW Silene uralensis Apetalous Catchfly FACW Sparganium angustifolium Narrow-Leaf Burr-Reed OBL Stachys tenuifolia Smooth Hedge-Nettle FACW Silphium integrifolium Entire-Leaf Rosinweed FAC Sparganium emersum European Burr-Reed OBL Staphylea trifolia American Bladdernut FAC Silphium perfoliatum Cup-Plant FAC Sparganium eurycarpum Broad-Fruit Burr-Reed OBL Steinchisma hians Gaping Grass FACW Sinapis alba White-Mustard FAC Sparganium fluctuans Floating Burr-Reed OBL Stellaria borealis Boreal Starwort FACW Sisymbrium altissimum Tall Hedge-Mustard FACU Sparganium glomeratum Clustered Burr-Reed OBL Stellaria calycantha Northern Bog Starwort FACW Sisyrinchium albidum White Blue-Eyed-Grass FACU Sparganium natans Arctic Burr-Reed OBL Stellaria crassifolia Fleshy Starwort OBL Sisyrinchium angustifolium Narrow-Leaf Blue-Eyed-Grass FACW alterniflora Saltwater Cord Grass OBL Stellaria crispa Ruffled Starwort FACW Sisyrinchium atlanticum Eastern Blue-Eyed-Grass FACW Spartina cynosuroides Big Cord Grass OBL Stellaria cuspidata Mexican Starwort FAC Sisyrinchium biforme Wiry Blue-Eyed-Grass FAC Spartina densiflora Dense-Flower Cord Grass OBL Stellaria graminea Grass-Leaf Starwort FACU Sisyrinchium demissum Stiff Blue-Eyed-Grass OBL Spartina gracilis Alkali Cord Grass FACW Stellaria longifolia Long-Leaf Starwort FACW Sisyrinchium idahoense Idaho Blue-Eyed-Grass OBL Spartina patens Salt-Meadow Cord Grass FACW Stellaria longipes Long-Stalk Starwort FACW Sisyrinchium minus Dwarf Blue-Eyed-Grass FACU Spartina pectinata Freshwater Cord Grass FACW Stellaria media Common Chickweed FACU Sisyrinchium montanum Strict Blue-Eyed-Grass FAC Spartina spartinae Gulf Cord Grass FAC Stellaria obtusa Rocky Mountain Starwort FACW Sisyrinchium mucronatum Needle-Tip Blue-Eyed-Grass FAC Spergularia diandra Alkali Sandspurry FACW Stellaria umbellata Umbrella Starwort FACW Sisyrinchium rosulatum Annual Blue-Eyed-Grass FAC Spergularia echinosperma Bristle-Seed Sandspurry OBL Stenandrium dulce Sweet Shaggytuft FACW Sisyrinchium sagittiferum Spear-Bract Blue-Eyed-Grass FACW Spergularia marina Saltmarsh Sandspurry OBL Stenanthium densum Osceola's-Plume FACW Sisyrinchium septentrionale Northern Blue-Eyed-Grass FAC Spergularia media Satin-Flower FACU Stenanthium gramineum Eastern Featherbells FAC Sium suave Hemlock Water-Parsnip OBL Spergularia platensis La Plata Sandspurry FACW Stenanthium leimanthoides Pine-Barren Featherbells FACW Smilax bona-nox Fringed Greenbrier FACU Spergularia rubra Ruby Sandspurry FACU Stenotaphrum secundatum St. Augustine Grass FAC Smilax glauca Sawbrier UPL Spermacoce glabra Smooth False Buttonweed FACW Streptopus amplexifolius Clasping Twistedstalk FACW Smilax hispida Chinaroot FAC Spermacoce tenuior Slender False Buttonweed FACW Streptopus lanceolatus Lance-Leaf Twistedstalk FAC Smilax laurifolia Laurel-Leaf Greenbrier OBL Spermolepis divaricata Rough-Fruit Scaleseed FACW Strophostyles helvola Trailing Fuzzy-Bean FACU Smilax pulverulenta Downy Carrion-Flower FACU Spermolepis echinata Bristly-Fruit Scaleseed FACU Strophostyles umbellata Pink Fuzzy-Bean FACU Smilax pumila Sarsparilla-Vine FAC Sphaerophysa salsula Red Bladder-Vetch FACU Stuckenia filiformis Slender-Leaf False Pondweed OBL Smilax rotundifolia Horsebrier FAC Sphenoclea zeylanica Chickenspike OBL Stuckenia pectinata Sago False Pondweed OBL Smilax smallii Lance-Leaf Greenbrier FACU Sphenopholis filiformis Long-Leaf Wedgescale FAC Stuckenia striata Striped False Pondweed OBL Solanum americanum American Black Nightshade FACU Sphenopholis intermedia Slender Wedgescale FAC Stuckenia vaginata Sheathed False Pondweed OBL Solanum campechiense Red-Berry Nightshade FACU Sphenopholis nitida Shiny Wedgescale UPL Stylisma aquatica Water Dawnflower FACW Solanum capsicoides Cockroach-Berry FACU Sphenopholis obtusata Prairie Wedgescale FAC Stylisma pickeringii Pickering's Dawnflower FAC Solanum carolinense Carolina Horse-Nettle UPL Spinulum annotinum Interrupted Club-Moss FAC Styrax americanus American Snowbell FACW Solanum douglasii Green-Spot Nightshade FAC Spiraea alba White Meadowsweet FACW Styrax grandifolius Big-Leaf Snowbell FAC Solanum dulcamara Climbing Nightshade FACU Spiraea betulifolia Shiny-Leaf Meadowsweet FACU Styrax platanifolius Sycamore-Leaf Snowbell FAC Suaeda calceoliformis Paiuteweed FACW Thalassia testudinum Turtle-Grass OBL Trifolium longipes Long-Stalk Clover FACW Suaeda conferta Beach Seepweed OBL Thalia dealbata Powdery Alligator-Flag OBL Trifolium mucronatum Cusp Clover FACW Suaeda linearis Annual Seepweed OBL Thalictrum alpinum Alpine Meadow-Rue FACW Trifolium neurophyllum White Mountain Clover FACW Suaeda nigra Shrubby Seepweed OBL Thalictrum dasycarpum Purple Meadow-Rue FAC Trifolium parryi Parry's Clover FAC Suaeda occidentalis Western Seepweed FACW Thalictrum dioicum Early Meadow-Rue FACW Trifolium pinetorum Pinewoods Clover FACW Subularia aquatica American Water-Awlwort OBL Thalictrum fendleri Fendler's Meadow-Rue FAC Trifolium pratense Red Clover FACU Suckleya suckleyana Poison Suckleya FACW Thalictrum revolutum Waxy-Leaf Meadow-Rue FACW Trifolium repens White Clover FACU Suksdorfia violacea Violet Mock Brookfoam FAC Thalictrum thalictroides Rue-Anemone FAC Trifolium resupinatum Reversed Clover FACU Sullivantia hapemanii Hapeman's Coolwort FACW Thalictrum venulosum Veiny-Leaf Meadow-Rue FAC Trifolium wormskioldii Cow Clover FACW Swertia perennis Felwort FAC Thaspium barbinode Hairy-Joint Meadow-Parsnip FAC Triglochin maritima Seaside Arrow-Grass OBL Symphoricarpos albus Common Snowberry UPL Thelypodium integrifolium Entire-Leaf Thelypody FACW Triglochin palustris Marsh Arrow-Grass OBL Symphoricarpos occidentalis Western Snowberry UPL Thelypodium sagittatum Arrowhead Thelypody FACU Triglochin scilloides Flowering-Quillwort OBL Symphoricarpos orbiculatus Coral-Berry FACU Thelypteris kunthii Kunth's Maiden Fern FAC Trillium cernuum Whip-Poor-Will-Flower FAC Symphyotrichum ascendens Western American-Aster FACU Thelypteris ovata Ovate Marsh Fern FACW Trillium flexipes Nodding Trillium FACU Symphyotrichum boreale Boreal American-Aster OBL Thelypteris palustris Eastern Marsh Fern OBL Trillium texanum Texas Trillium FAC Symphyotrichum bracteolatum Bracted American-Aster FAC Thermopsis divaricarpa Spread-Fruit Golden-Banner FAC Triodanis perfoliata Clasping-Leaf Venus'-Looking-Glass Symphyotrichum ciliatum Alkali American-Aster FACW Thermopsis rhombifolia Prairie Golden-Banner UPL FAC Symphyotrichum divaricatum Lawn American-Aster OBL Thevetia peruviana Luckynut UPL Triosteum angustifolium Yellow-Fruit Horse-Gentian FAC Symphyotrichum dumosum Rice Button American-Aster FAC Thlaspi arvense Field Pennycress FACU Triphasia trifolia Limeberry FACU Symphyotrichum ericoides White Heath American-Aster FACU Thuja occidentalis Eastern Arborvitae FACW Triphora trianthophoros Threebirds FACU Symphyotrichum eulae Eula's American-Aster FAC Thuja plicata Western Arborvitae UPL Tripleurospermum maritimum False Mayweed FAC Symphyotrichum expansum Desert American-Aster OBL Thunbergia alata Black-Eyed-Susan-Vine UPL Tripsacum dactyloides Eastern Mock Grama FAC Symphyotrichum falcatum Rough White Prairie American-Aster Climbing-Dogbane FACW Trisetum spicatum Narrow False Oat FACU FACU Tiedemannia filiformis FACW Trollius laxus American Globeflower OBL Symphyotrichum foliaceum Alpine Leafy-Head American-Aster Tilia americana American Basswood FACU Typha X glauca OBL UPL Tillandsia usneoides Spanish-Moss UPL Typha X provincialis OBL Symphyotrichum frondosum Leafy American-Aster FACW Tipularia discolor Crippled-Cranefly FAC Typha angustifolia Narrow-Leaf Cat-Tail OBL Symphyotrichum laeve Smooth Blue American-Aster FACU Tithonia diversifolia Tree-Marigold FAC Typha domingensis Southern Cat-Tail OBL Symphyotrichum lanceolatum White Panicled American-Aster FACW Torreyochloa pallida Pale False Manna Grass OBL Typha latifolia Broad-Leaf Cat-Tail OBL Symphyotrichum lateriflorum Farewell-Summer FACW Toxicodendron pubescens Eastern Poison-Oak FACU Ulmus alata Winged Elm FACU Symphyotrichum novae-angliae New England American-Aster FACW Toxicodendron radicans Eastern Poison Ivy FACU Ulmus americana American Elm FAC Symphyotrichum ontarionis Ontario American-Aster FAC Toxicodendron rydbergii Western Poison Ivy FACU Ulmus crassifolia Cedar Elm FAC Symphyotrichum pilosum White Oldfield American-Aster FACU Toxicoscordion venenosum Meadow Poison Camas FAC Ulmus glabra Wych Elm FACU Symphyotrichum porteri Smooth White American-Aster FACU Tradescantia bracteata Long-Bract Spiderwort FACU Ulmus parvifolia Chinese Elm UPL Symphyotrichum praealtum Willow-Leaf American-Aster FACW Tradescantia edwardsiana Plateau Spiderwort FAC Ulmus pumila Siberian Elm UPL Symphyotrichum puniceum Purple-Stem American-Aster OBL Tradescantia fluminensis Small-Leaf Wandering-Jew FAC Ulmus rubra Slippery Elm FACU Symphyotrichum racemosum Fragile-Stem American-Aster FACW Tradescantia occidentalis Prairie Spiderwort UPL Ulmus serotina September Elm FACU Symphyotrichum robynsianum Robyns' American-Aster FACW Tradescantia ohiensis Bluejacket FACU Ulmus thomasii Rock Elm FACU Symphyotrichum spathulatum Mountain American-Aster FAC Tradescantia virginiana Virginia Spiderwort FAC Uniola paniculata Sea-Oats FACU Symphyotrichum squamatum OBL Tradescantia wrightii Wright's Spiderwort FACW Urochloa distachya Tropical Liverseed Grass FAC Symphyotrichum subspicatum Leafy-Bract American-Aster FAC Transberingia bursifolia False Fissurewort FACU Urochloa fusca Brown-Top Liverseed Grass FAC Symphyotrichum subulatum Seaside American-Aster OBL Trautvetteria caroliniensis Carolina Tassel-Rue FACW Urochloa mutica Para Liverseed Grass FACW Symplocarpus foetidus Skunk-Cabbage OBL Trepocarpus aethusae Whitenymph FACW Urochloa panicoides Panic Liverseed Grass FACU Symplocos tinctoria Horsesugar FAC Triadica sebifera Chinese Tallowtree FAC Urochloa plantaginea Plantain Liverseed Grass FACU Syringodium filiforme Manatee-Grass OBL Triantha glutinosa Sticky False Asphodel OBL Urochloa platyphylla Broad-Leaf Liverseed Grass FAC Tamarix aphylla Athel Tamarisk FACW Triantha occidentalis Western False Asphodel FACW Urochloa ramosa Dixie Liverseed Grass FACU Tamarix chinensis Five- Tamarisk FACW Trianthema portulacastrum Desert Horse-Purslane FACW Urochloa reptans Sprawling Liverseed Grass UPL Tamarix gallica French Tamarisk FACW Trichocoronis wrightii Limestone Bugheal FACW Urtica chamaedryoides Heart-Leaf Nettle FACU Tamarix parviflora Small-Flower Tamarisk FACW Trichophorum alpinum Alpine Leafless-Bulrush OBL Urtica dioica Stinging Nettle FAC Tanacetum vulgare Common Tansy FACU Trichophorum caespitosum Tufted Leafless-Bulrush OBL cornuta Horned Bladderwort OBL Taraxacum ceratophorum Horned Dandelion UPL Trichophorum clintonii Clinton's Leafless-Bulrush FACU Utricularia foliosa Leafy Bladderwort OBL Taraxacum officinale Common Dandelion FACU Trichophorum pumilum Rolland's Leafless-Bulrush OBL Utricularia gibba Humped Bladderwort OBL Taraxia breviflora Nested Goldeneggs FACU Trichostema dichotomum Forked Bluecurls FAC Utricularia inflata Swollen Bladderwort OBL Taraxia subacaulis Spreading Goldeneggs FACW Tridax procumbens Coatbuttons FACU Utricularia intermedia Flat-Leaf Bladderwort OBL Tarenaya hassleriana Pinkqueen FAC Tridens albescens White Fluff Grass FAC Utricularia juncea Southern Bladderwort OBL Tauschia texana Texas Umbrella-Wort FACW Tridens ambiguus Pine-Barren Fluff Grass FAC Utricularia macrorhiza Greater Bladderwort OBL Southern Bald-Cypress OBL Tridens flavus Tall Redtop UPL Utricularia minor Lesser Bladderwort OBL Taxus brevifolia Pacific Yew FACU Tridens muticus Awnless Fluff Grass FACU Utricularia ochroleuca Dwarf Bladderwort OBL Taxus canadensis American Yew FAC Tridens strictus Long-Spike Fluff Grass FAC Utricularia radiata Little Floating Bladderwort OBL Tecoma stans Yellow Trumpetbush UPL Trientalis borealis Maystar FAC Utricularia striata Striped Bladderwort OBL Tectaria heracleifolia Broad Halberd Fern FACU Trifolium dasyphyllum Uinta Clover FACU Utricularia subulata Zigzag Bladderwort OBL Tephroseris palustris Clustered Marsh Squaw-Weed FACW Trifolium dubium Suckling Clover FACU Uvularia sessilifolia Sessile-Leaf Bellwort FACU Teucrium canadense American Germander FACW Trifolium fragiferum Strawberry-Head Clover FAC Vaccaria hispanica Cowcockle UPL Teucrium cubense Small Coastal Germander FAC Trifolium hybridum Alsike Clover FACU Vaccinium angustifolium Late Lowbush Blueberry FACU Vaccinium arboreum Tree Sparkle-Berry FACU Viburnum acerifolium Maple-Leaf Arrow-Wood UPL Woodwardia areolata Netted Chain Fern OBL Vaccinium caespitosum Dwarf Blueberry FAC Viburnum dentatum Southern Arrow-Wood FAC Woodwardia virginica Virginia Chain Fern OBL Vaccinium corymbosum Highbush Blueberry FACW Viburnum edule Squashberry FACW X Elyhordeum macounii FAC Vaccinium elliottii Elliott's Blueberry FACW Viburnum lentago Nanny-Berry FACU Xanthisma spinulosum Lacy Sleepy Daisy UPL Vaccinium fuscatum Black Blueberry FACW Viburnum nudum Possumhaw FACW Xanthium spinosum Spiny Cockleburr FACU Vaccinium macrocarpon Large Cranberry OBL Viburnum opulus Highbush-Cranberry FAC Xanthium strumarium Rough Cockleburr FAC Vaccinium membranaceum Square-Twig Blueberry FACU Viburnum prunifolium Smooth Blackhaw FACU Xanthosoma sagittifolium Arrow-Leaf Elephant's-Ear FACU Vaccinium myrtilloides Velvet-Leaf Blueberry FACW Viburnum recognitum Smooth Arrow-Wood FAC Xerophyllum tenax Western Turkeybeard FAC Vaccinium myrtillus Whortle-Berry UPL Viburnum rufidulum Rusty Blackhaw FACU Xyris ambigua Coastal-Plain Yellow-Eyed-Grass Vaccinium oxycoccos Small Cranberry OBL Vicia americana American Purple Vetch FACU OBL Vaccinium scoparium Grouseberry FACU Vicia caroliniana Carolina Vetch UPL Xyris baldwiniana Baldwin's Yellow-Eyed-Grass OBL Vaccinium stamineum Deerberry FACU Vicia ludoviciana Louisiana Vetch UPL Xyris difformis Bog Yellow-Eyed-Grass OBL Vaccinium uliginosum Alpine Blueberry FAC Vicia minutiflora Pygmy-Flower Vetch UPL Xyris jupicai Richard's Yellow-Eyed-Grass OBL Vaccinium vitis-idaea Northern Mountain-Cranberry FAC Vicia sativa Garden Vetch FACU Xyris laxifolia Lax-Leaf Yellow-Eyed-Grass OBL Vachellia farnesiana Mealy False Acacia FACU Vigna luteola Wild Cow-Pea FACW Xyris montana Northern Yellow-Eyed-Grass OBL Valeriana acutiloba Cordilleran Valerian FAC Viola X bernardii UPL Xyris scabrifolia Harper's Yellow-Eyed-Grass OBL Valeriana dioica Marsh Valerian FACW Viola X napae FAC Xyris torta Slender Yellow-Eyed-Grass OBL Valeriana edulis Tobacco-Root FAC Viola X viarum FACU Yeatesia viridiflora Yellow Bractspike FACW Valeriana occidentalis Small-Flower Valerian FAC Viola adunca Hook-Spur Violet FACU Youngia japonica Oriental False Hawk's-Beard FACU Valeriana texana Guadalupe Valerian OBL Viola bicolor Field Pansy FAC Yucca aloifolia Aloe Yucca UPL Valerianella amarella Hairy Cornsalad FACU Viola biflora Arctic Yellow Violet FAC Zannichellia palustris Horned-Pondweed OBL Valerianella florifera Texas Cornsalad FAC Viola blanda Sweet White Violet FACW Zanthoxylum americanum Toothachetree UPL Valerianella radiata Beaked Cornsalad FACW Viola canadensis Canadian White Violet FACU Zanthoxylum clava-herculis Hercules'-Club FACU Valerianella stenocarpa Narrow-Cell Cornsalad FACW Viola labradorica Alpine Violet FAC Zanthoxylum fagara Limestone Prickly-Ash FAC Valerianella texana Edwards Plateau Cornsalad FAC Viola lanceolata Bog White Violet OBL Zeltnera beyrichii Quinineweed FACU Vallisneria americana American Eel-Grass OBL Viola langloisii Langlois' Violet FACW Zeltnera calycosa Buckley's Mountain-Pink FACW Veratrum californicum California False Hellebore OBL Viola macloskeyi Smooth White Violet FACW Zeltnera exaltata Desert Mountain-Pink FACW Veratrum virginicum Virginia Bunchflower FACW Viola missouriensis Missouri Violet FACW Zeltnera glandulifera Sticky Mountain-Pink FACU Verbascum blattaria White Moth Mullein UPL Viola nephrophylla Northern Bog Violet FACW Zeltnera nudicaulis Santa Catalina Mountain-Pink FACW Verbascum thapsus Great Mullein UPL Viola novae-angliae New England Blue Violet FAC Zephyranthes pulchella Showy Zephyr-Lily FACW Verbena X engelmannii FACU Viola palmata Three-Lobe Violet FACU Zephyranthes refugiensis Refugio Zephyr-Lily FACW Verbena X rydbergii FACW Viola palustris Alpine-Marsh Violet FACW Zeuxine strateumatica Soldier's Orchid FAC Verbena bonariensis Purple-Top Vervain FACW Viola pedata Bird-Foot Violet UPL Zizania aquatica Indian Wild Rice OBL Verbena bracteata Carpet Vervain FACU Viola pedatifida Crow-Foot Violet FACU Zizania palustris Northern Wild Rice OBL Verbena hastata Simpler's-Joy FACW Viola primulifolia Primroseleaf Violet FAC Zizania texana Texas Wild Rice OBL Verbena incompta Brazilian Vervain FAC Viola pubescens Downy Yellow Violet FACU Zizaniopsis miliacea Marsh-Millet OBL Verbena macdougalii New Mexico Vervain FAC Viola renifolia Kidney-Leaf White Violet FACW Zizia aptera Heart-Leaf Alexanders FAC Verbena officinalis Herb-of-the-Cross FACU Viola sagittata Arrow-Leaf Violet FAC Zizia aurea Golden Alexanders FAC Verbena runyonii Rio Grande Vervain FACW Viola sororia Hooded Blue Violet FAC Zoysia matrella Manila Temple Grass FACU Verbena scabra Sandpaper Vervain OBL Viola striata Striped Cream Violet FACW Verbena urticifolia White Vervain FAC Viola subsinuata Early Blue Violet FACU Verbesina alternifolia Wingstem FAC Viola villosa Carolina Violet FACU Verbesina encelioides Golden Crownbeard FAC Viola walteri Prostrate Blue Violet UPL Verbesina virginica White Crownbeard FACU Vitex negundo Five-Leaf Chastetree UPL Vernonia arkansana Arkansas Ironweed FAC Vitis aestivalis Summer Grape FAC Vernonia baldwinii Western Ironweed FACU Vitis arizonica Canyon Grape FACU Vernonia fasciculata Prairie Ironweed FAC Vitis cinerea Gray-Bark Grape FAC Vernonia gigantea Giant Ironweed FAC Vitis palmata Catbird Grape FACW Vernonia lettermannii Narrow-Leaf Ironweed OBL Vitis riparia River-Bank Grape FAC Vernonia marginata Plains Ironweed FAC Vitis rotundifolia Muscadine FAC Vernonia missurica Missouri Ironweed FACW Vitis rupestris Rock Grape FACU Vernonia noveboracensis Ironweed FAC Vitis vulpina Frost Grape FAC Vernonia texana Texas Ironweed FACU Vulpia bromoides Brome Six-Weeks Grass FAC Veronica americana American-Brooklime OBL Vulpia myuros Rat-Tail Six-Weeks Grass FAC Veronica anagallis-aquatica Blue Water Speedwell OBL Vulpia octoflora Eight-Flower Six-Weeks Grass FACU Veronica arvensis Corn Speedwell FACU Waltheria indica Basora-Prieta UPL Veronica chamaedrys Germander Speedwell UPL Wislizenia refracta Spectacle-Fruit FACW Veronica cusickii Cusick's Speedwell FAC Wisteria frutescens American Wisteria FACW Veronica officinalis Common Gypsyweed UPL Wolffia borealis Northern Watermeal OBL Veronica peregrina Neckweed FACW Wolffia brasiliensis Brazilian Watermeal OBL Veronica scutellata Grass-Leaf Speedwell OBL Wolffia columbiana Columbian Watermeal OBL Veronica serpyllifolia Thyme-Leaf Speedwell OBL Wolffiella gladiata Sword Bogmat OBL Veronica wormskjoldii American Alpine Speedwell FAC Wolffiella lingulata Tongue-Shape Bogmat OBL Veronicastrum virginicum Culver's-Root FAC Wolffiella oblonga Saber Bogmat OBL Adam-and-Eve Aplectrum hyemale FAC American Bittersweet Celastrus scandens UPL Aniseroot Osmorhiza longistylis FAC Adherent Bristle Grass Setaria adhaerens UPL American Black Nightshade Solanum americanum FACU Annual Blue Grass Poa annua FACU Akan Asante Helminthotheca echioides UPL American Bladdernut Staphylea trifolia FAC Annual Blue-Eyed-Grass Sisyrinchium rosulatum FAC Alabama Supplejack Berchemia scandens FAC American Bluehearts Buchnera americana FAC Annual Fimbry Fimbristylis annua FACW Alaska Rein Orchid Piperia unalascensis FACU American Buckwheatvine Brunnichia ovata FACW Annual Hair Grass Deschampsia danthonioides FACW Alaska Whitlow-Grass Draba stenoloba UPL American Bugseed Corispermum americanum FACU Annual Jacob's-Ladder Polemonium micranthum FACU Alaska Wild Rye Elymus alaskanus UPL American Burnweed Senecio hieraciifolius FACU Annual Knawel Scleranthus annuus FACU Alder-Leaf Buckthorn Rhamnus alnifolia FACW American Burr-Reed Sparganium americanum OBL Annual Marsh-Elder Iva annua FAC Aleutian Maidenhair Adiantum aleuticum FAC American Century-Plant Agave americana UPL Annual Rabbit's-Foot Grass Polypogon monspeliensis FACW Alfalfa Medicago sativa UPL American Cow-Parsnip Heracleum maximum FAC Annual Ragweed Ambrosia artemisiifolia FACU Alkali American-Aster Symphyotrichum ciliatum FACW American Cupscale Sacciolepis striata OBL Annual Seepweed Suaeda linearis OBL Alkali Buttercup Cyrtorhyncha cymbalaria OBL American Deerweed Acmispon americanus FACU Annual Wormwood Artemisia annua FACU Alkali Cord Grass Spartina gracilis FACW American Dragonhead Dracocephalum parviflorum FACU Annual-Phlox Microsteris gracilis UPL Alkali Indian-Paintbrush Castilleja minor OBL American Eel-Grass Vallisneria americana OBL Antelope Grass Cynodon nlemfuensis UPL Alkali Muhly Muhlenbergia asperifolia FACW American Elm Ulmus americana FAC Apache Lobelia Lobelia anatina FACW Alkali Popcorn-Flower Plagiobothrys leptocladus FACW American Featherfoil Hottonia inflata OBL Aparejo Grass Muhlenbergia utilis FACW Alkali Sandspurry Spergularia diandra FACW American Fly-Honeysuckle Lonicera canadensis FACU Apetalous Catchfly Silene uralensis FACW Alkali Yellowtops Flaveria campestris FAC American Germander Teucrium canadense FACW Apple Mint Mentha suaveolens FACW Alkali-Mallow Malvella leprosa FAC American Globeflower Trollius laxus OBL Aquatic Milkweed Asclepias perennis OBL Alkali-Marsh Ragwort Senecio hydrophilus OBL American Hazelnut Corylus americana UPL Arctic Blue Grass Poa arctica FACW Alkali-Sacaton Sporobolus airoides FAC American Hog-Peanut Amphicarpaea bracteata FACU Arctic Burr-Reed Sparganium natans OBL Allegheny Blackberry Rubus allegheniensis UPL American Holly Ilex opaca FACU Arctic Hare-Foot Sedge Carex lachenalii OBL Allegheny Monkey-Flower Mimulus ringens OBL American Hornbeam Carpinus caroliniana FAC Arctic Sweet-Colt's-Foot Petasites frigidus FAC Alligator Juniper Juniperus deppeana FACU American Larch Larix laricina FACW Arctic Yellow Violet Viola biflora FAC Alligator-Weed Alternanthera philoxeroides OBL American Licorice Glycyrrhiza lepidota FACU Arizona Alder Alnus oblongifolia FACW Aloe Yucca Yucca aloifolia UPL American Lopseed Phryma leptostachya FACU Arizona Dewberry Rubus arizonensis FACU Alpine Bitter-Root Lewisia pygmaea FACU American Lotus Nelumbo lutea OBL Arizona Thistle Cirsium arizonicum FAC Alpine Blue Grass Poa alpina FACU American Manna Grass Glyceria grandis OBL Arizona Walnut Juglans major FAC Alpine Blueberry Vaccinium uliginosum FAC American Milk-Vetch Astragalus americanus FAC Arizona Willow Salix arizonica OBL Alpine Buttercup Ranunculus adoneus FACW American Millet Grass Milium effusum FACU Arkansas Ironweed Vernonia arkansana FAC Alpine Coraldrops Besseya alpina FACW American Pillwort Pilularia americana OBL Arkansas Manna Grass Glyceria arkansana OBL Alpine False Bent Podagrostis humilis FACW American Plum Prunus americana UPL Arkansas Sedge Carex arkansana FACU Alpine Leafless-Bulrush Trichophorum alpinum OBL American Pokeweed Phytolacca americana FACU Arrow-Feather Three-Awn Aristida purpurascens UPL Alpine Leafy-Head American-Aster American Purple Vetch Vicia americana FACU Arrowhead Thelypody Thelypodium sagittatum FACU Symphyotrichum foliaceum UPL American Screw-Bean Prosopis pubescens FAC Arrow-Leaf Elephant's-Ear Xanthosoma sagittifolium FACU Alpine Meadow-Foxtail Alopecurus magellanicus FACW American Silver-Berry Elaeagnus commutata UPL Arrow-Leaf Ragwort Senecio triangularis OBL Alpine Meadow-Rue Thalictrum alpinum FACW American Slough Grass Beckmannia syzigachne OBL Arrow-Leaf Tearthumb Persicaria sagittata OBL Alpine Milk-Vetch Astragalus alpinus FAC American Snowbell Styrax americanus FACW Arrow-Leaf Violet Viola sagittata FAC Alpine Mountainbalm Monardella odoratissima UPL American Spikenard Aralia racemosa FACU Arrow-Weed Pluchea sericea FAC Alpine Nerve Sedge Carex neurophora FACW American Spongeplant Limnobium spongia OBL Arroyo Willow Salix lasiolepis FACW Alpine Northern-Rockcress Braya humilis FACU American Spurred-Gentian Halenia deflexa FAC Arum-Leaf Arrowhead Sagittaria cuneata OBL Alpine Pearlwort Sagina saginoides FACW American Strawberry-Bush Euonymus americanus FACW Ash-Leaf Maple Acer negundo FAC Alpine Primrose Primula angustifolia FAC American Sycamore Platanus occidentalis FAC Asian Bittersweet Celastrus orbiculatus UPL Alpine Sheep Sorrel Rumex paucifolius FAC American Twinflower Linnaea borealis FACU Asian Crab Grass Digitaria bicornis FACU Alpine Spicy-Wintergreen Gaultheria humifusa FACU American Water-Awlwort Subularia aquatica OBL Asian Forget-Me-Not Myosotis asiatica FAC Alpine Springbeauty Claytonia megarhiza FACU American Water-Plantain Alisma subcordatum OBL Asian Marshweed Limnophila sessiliflora OBL Alpine Stitchwort Minuartia obtusiloba FACU American Water-Willow Justicia americana OBL Asian Pigeonwings Clitoria ternatea FACU Alpine Sweet-Vetch Hedysarum alpinum FACU American Waterwort Elatine americana OBL Asian Pony's-Foot Dichondra micrantha FACW Alpine Violet Viola labradorica FAC American White Water-Lily Nymphaea odorata OBL Asiatic Dayflower Commelina communis FAC Alpine-Brook Saxifrage Saxifraga rivularis FACW American Wild Mint Mentha arvensis FACW Asparagus Asparagus officinalis FACU Alpine-Marsh Violet Viola palustris FACW American Wintergreen Pyrola americana FACU Aspen Onion Allium bisceptrum FACU Alsike Clover Trifolium hybridum FACU American Wisteria Wisteria frutescens FACW Asthmaweed Erigeron bonariensis FACU Alternate Milkwort Polygala ambigua FACU American Witch-Hazel Hamamelis virginiana FAC Athel Tamarisk Tamarix aphylla FACW Alternate-Leaf Dogwood Cornus alternifolia FACU American Yellow-Rocket Barbarea orthoceras OBL Atlantic Camas Camassia scilloides FAC Alternate-Leaf Flat Sedge Cyperus involucratus FACW American Yew Taxus canadensis FAC Atlantic Goldenrod Solidago arguta FACU Amamastla Rumex chrysocarpus FACW American-Bellflower Campanulastrum americanum FAC Atlantic Ninebark Physocarpus opulifolius FACU Amazon Viper Grass Dinebra panicoides FACW American-Brooklime Veronica americana OBL Atlantic Pigeonwings Clitoria mariana FACU American Alpine Lady Fern Athyrium americanum FAC Analogue Sedge Carex simulata OBL Aunt Lucy Ellisia nyctelea FACU American Alpine Speedwell Veronica wormskjoldii FAC Anchored Water-Hyacinth Eichhornia azurea OBL Australian Beard Grass Bothriochloa bladhii FACU American Alumroot Heuchera americana FACU Angle-Stem Beak Sedge Rhynchospora caduca OBL Australian Saltbush Atriplex semibaccata FAC American Basswood Tilia americana FACU Angle-Stem Primrose-Willow Ludwigia leptocarpa OBL Australian Water-Buttons Cotula australis FAC American Beauty-Berry Callicarpa americana FACU Angleton's Bluestem Dichanthium aristatum FACU Australian Water-Clover Marsilea mutica OBL American Beech Fagus grandifolia FACU Angular-Fruit Anglepod Gonolobus suberosus FACW Austrian Yellowcress Rorippa austriaca FACW American Bistort Bistorta bistortoides OBL Anil-de-Pasto Indigofera suffruticosa FAC Autumn Blue Grass Poa autumnalis FAC Autumn Dwarf-Gentian Gentianella amarella FACW Bent-Awn Flat Sedge Cyperus reflexus FAC Blond Plantain Plantago ovata FAC Autumn Water-Starwort Callitriche hermaphroditica OBL Berg's Panic Grass Panicum bergii FACW Blood Rosette Grass Dichanthelium consanguineum FACU Autumn Willow Salix serissima OBL Bering Sea Mouse-Ear Chickweed Bloodflower Asclepias curassavica FAC Awl-Leaf Mudwort Limosella aquatica OBL Cerastium beeringianum FAC Bloodroot Sanguinaria canadensis UPL Awned Flat Sedge Cyperus squarrosus OBL Berlandier's Lobelia Lobelia berlandieri FAC Blue Mistflower Conoclinium coelestinum FACW Awned Halfchaff Sedge Lipocarpha aristulata FACW Bermuda Grass Cynodon dactylon FACU Blue Mud-Plantain Heteranthera limosa OBL Awnless Fluff Grass Tridens muticus FACU Betony-Leaf Mistflower Conoclinium betonicifolium FACW Blue Panic Grass Panicum coloratum FAC Awnless Wild Rye Elymus curvatus FAC Bicknell's Sedge Carex bicknellii FACW Blue Sedge Carex glaucodea FACW Axil-Flower Mecardonia acuminata FACW Biennial Cinquefoil Potentilla biennis FACW Blue Spruce Picea pungens FAC Baby-Jump-Up Mecardonia procumbens FACW Biennial Wormwood Artemisia biennis FACU Blue Water Speedwell Veronica anagallis-aquatica OBL Baccharis-Leaf Beardtongue Penstemon baccharifolius FACU Big Bluestem Andropogon gerardii FACU Blue Water-Hyssop Bacopa caroliniana OBL Bagpod Sesbania vesicaria FAC Big Carpet Grass Axonopus furcatus OBL Blue Waxweed Cuphea viscosissima FAC Bahia Grass Paspalum notatum FAC Big Cord Grass Spartina cynosuroides OBL Blue Wild Indigo Baptisia australis UPL Bailey's Dewberry Rubus baileyanus FACU Big Floatingheart Nymphoides aquatica OBL Blue Wild Rye Elymus glaucus FACU Bald-Hip Rose Rosa gymnocarpa UPL Big Red Sage Salvia pentstemonoides FACW Bluebell-of-Scotland Campanula rotundifolia FAC Baldwin's Flat Sedge Cyperus croceus FAC Big Sandburr Cenchrus myosuroides FACU Blueberry Hawthorn Crataegus brachyacantha FACW Baldwin's Spike-Rush Eleocharis baldwinii FACW Bigelow's Beggarticks Bidens bigelovii FACW Bluebill Clematis pitcheri FACU Baldwin's Yellow-Eyed-Grass Xyris baldwiniana OBL Bigelow's False Tansy-Aster Dieteria bigelovii FACW Bluebunch Fescue Festuca idahoensis UPL Balsam Fir Abies balsamea FAC Big-Foot Water-Clover Marsilea macropoda OBL Blue-Flower Eryngo Eryngium integrifolium FACW Balsam Groundsel Packera paupercula FAC Big-Head Rush Juncus megacephalus OBL Bluejacket Tradescantia ohiensis FACU Balsam Poplar Populus balsamifera FACW Big-Leaf Snowbell Styrax grandifolius FAC Bluejoint Calamagrostis canadensis FACW Balsam Willow Salix pyrifolia OBL Big-Tooth Aspen Populus grandidentata FACU Bluemink Ageratum houstonianum FACU Balsam-Pear Momordica charantia FACU Big-Top Love Grass Eragrostis hirsuta FACU Blunt Broom Sedge Carex tribuloides OBL Baltic Rush Juncus balticus FACW Birch-Leaf False Buckthorn Frangula betulifolia FACU Blunt Spike-Rush Eleocharis obtusa OBL Banana Water-Lily Nymphaea mexicana OBL Bird-Eye Pearlwort Sagina procumbens FACW Blunt-Leaf Bedstraw Galium obtusum FACW Bandanna-of-the-Everglades Canna flaccida OBL Bird-Foot Violet Viola pedata UPL Blunt-Leaf Grove-Sandwort Moehringia lateriflora FACU Barberry Hawthorn Crataegus berberifolia FAC Bird-Seed Leaf-Flower Phyllanthus evanescens FACW Blunt-Leaf Orchid Platanthera obtusata FACW Barclay's Willow Salix barclayi OBL Bitter Cherry Prunus emarginata FAC Blunt-Leaf Pondweed Potamogeton obtusifolius OBL Bare-Stem Bishop's-Cap Mitella nuda OBL Bitter Dock Rumex obtusifolius FACW Blunt-Leaf Yellowcress Rorippa curvipes OBL Barkley's-Ragwort Barkleyanthus salicifolius FAC Bitter Fleabane Erigeron acris FAC Bodin's Milk-Vetch Astragalus bodinii FAC Basin Saltbush Atriplex tridentata FACW Bitter Panic Grass Panicum amarum FACU Bog Birch Betula pumila OBL Basora-Prieta Waltheria indica UPL Bitter-Nut Hickory Carya cordiformis FACU Bog Goldenrod Solidago uliginosa OBL Bastard-Toadflax Comandra umbellata UPL Black Alpine Sedge Carex nigricans FACW Bog Muhly Muhlenbergia uniflora OBL Bay Forget-Me-Not Myosotis laxa OBL Black Ash Fraxinus nigra FACW Bog Orchid Platanthera aquilonis OBL Bay-Bean Canavalia rosea FAC Black Bamboo Phyllostachys nigra FACU Bog Pseudosaxifrage Micranthes oregana OBL Bayflower Blutaparon vermiculare FACW Black Bent Agrostis gigantea FACW Bog Rush Juncus marginatus FACW Bay-Hops Ipomoea pes-caprae FAC Black Blueberry Vaccinium fuscatum FACW Bog Smartweed Persicaria setacea OBL Beach False Foxglove Agalinis fasciculata FAC Black Bog-Rush Schoenus nigricans OBL Bog Stitchwort Minuartia stricta FAC Beach Morning-Glory Ipomoea imperati FAC Black Cherry Prunus serotina FACU Bog White Violet Viola lanceolata OBL Beach Seepweed Suaeda conferta OBL Black Chokeberry Aronia melanocarpa OBL Bog Willow Salix pedicellaris OBL Beach She-Oak Casuarina equisetifolia FACU Black Elder Sambucus nigra FAC Bog Willowherb Epilobium leptophyllum OBL Beach Strawberry Fragaria chiloensis FACU Black Flat Sedge Cyperus niger FACW Bog Yellowcress Rorippa palustris OBL Beaked Cornsalad Valerianella radiata FACW Black Hawthorn Crataegus douglasii FAC Bog Yellow-Eyed-Grass Xyris difformis OBL Beaked Cut-Throat Grass Coleataenia anceps FAC Black Locust Robinia pseudoacacia UPL Bog-Rosemary Andromeda polifolia OBL Beaked Ditch-Grass Ruppia maritima OBL Black Mangrove Avicennia germinans OBL Boivin's Rockcress Boechera grahamii FACU Beaked Grooveburr Agrimonia rostellata FAC Black Medick Medicago lupulina FACU Bolander's Quillwort Isoetes bolanderi OBL Beaked Hazelnut Corylus cornuta UPL Black Spleenwort Asplenium adiantum-nigrum FACU Bolander's Sedge Carex bolanderi FACW Beaked Spike-Rush Eleocharis rostellata OBL Black Spruce Picea mariana FACW Bonneville Shootingstar Dodecatheon conjugens FACU Bearded Beggarticks Bidens aristosa FACW Black Tupelo Nyssa sylvatica FAC Boreal American-Aster Symphyotrichum boreale OBL Bearded Fescue Festuca subulata UPL Black Walnut Juglans nigra FACU Boreal Sagebrush Artemisia norvegica FACW Bearded Sedge Carex comosa OBL Black Willow Salix nigra FACW Boreal Starwort Stellaria borealis FACW Bearded Shorthusk Brachyelytrum erectum FACU Black-and-White-Scale Sedge Carex albonigra FAC Boreal Stitchwort Minuartia rubella FAC Bearded Sprangletop Diplachne fusca FACW Black-Bindweed Fallopia convolvulus FACU Boreal-Bog Sedge Carex magellanica OBL Beardless Lyme Grass Leymus triticoides FAC Black-Edge Sedge Carex nigromarginata FAC Bosc's Mille-Graines Oldenlandia boscii FACW Beardless Rabbit's-Foot Grass Polypogon viridis FACW Black-Eyed-Susan Rudbeckia hirta FACU Boston Sword Fern Nephrolepis exaltata FACU Beautiful Fleabane Erigeron formosissimus FAC Black-Eyed-Susan-Vine Thunbergia alata UPL Bottlebrush Three-Awn Aristida spiciformis FAC Bebb's Sedge Carex bebbii OBL Black-Foot Quillwort Isoetes melanopoda OBL Bottom-Land Post Oak Quercus similis FACW Beckett's Water-Trumpet Cryptocoryne beckettii OBL Black-Fruit Spike-Rush Eleocharis melanocarpa FACW Bouncing-Bett Saponaria officinalis FACU Beck's Water-Marigold Bidens beckii OBL Black-Girdle Bulrush Scirpus atrocinctus OBL Bracted American-Aster Symphyotrichum bracteolatum FAC Bedstraw St. John's-Wort Hypericum galioides OBL Black-Head Fleabane Erigeron melanocephalus FAC Bracted Bedstraw Galium microphyllum FAC Beefsteakplant FAC Black-Root Sedge Carex elynoides FAC Bractless Hedge-Hyssop Gratiola ebracteata OBL Beggar's-Lice Hackelia virginiana FACU Black-Seed Plantain Plantago rugelii FACU Branched Blackberry Rubus suus FAC Bellard's Knotweed Polygonum patulum FACW Black-Seed Spear Grass Piptochaetium avenaceum UPL Branched Burr-Reed Sparganium androcladum OBL Bent Sedge Carex styloflexa OBL Blisterwort Ranunculus recurvatus FACW Branched Centaury Centaurium pulchellum FACU Branched Foldwing Dicliptera brachiata FACW Bulbous Adder's-Tongue Ophioglossum crotalophoroides Canyon Maple Acer grandidentatum FAC Brazilian Peppertree Schinus terebinthifolia FAC FAC Canyon Sage Salvia lycioides FACU Brazilian Vervain Verbena incompta FAC Bulbous Bittercress Cardamine bulbosa OBL Capillary Hair Sedge Bulbostylis ciliatifolia FAC Brazilian Watermeal Wolffia brasiliensis OBL Bulbous Blue Grass Poa bulbosa FACU Capitate Sedge Carex capitata FACW Brazilian-Waterweed Egeria densa OBL Bulbous Wood-Rush Luzula bulbosa FACU Capitate Spike-Rush Eleocharis geniculata FACW Bright-Green Spike-Rush Eleocharis olivacea OBL Bull Crown Grass Paspalum boscianum FACW Caraway Carum carvi UPL Bristle-Leaf Sedge Carex eburnea FACU Bull Elephant's-Head Pedicularis groenlandica OBL Cardinal-Flower Lobelia cardinalis FACW Bristle-Seed Sandspurry Spergularia echinosperma OBL Bull Thistle Cirsium vulgare UPL Careless Weed Amaranthus palmeri FACU Bristle-Seed Yellow Star-Grass Hypoxis wrightii FACW Bull-Tongue Arrowhead Sagittaria lancifolia OBL Carelessweed Cyclachaena xanthiifolia FAC Bristly Bedstraw Galium uncinulatum FAC Bunched Beak Sedge Rhynchospora cephalantha OBL Carolina Bristle-Mallow Modiola caroliniana FAC Bristly Black Gooseberry Ribes lacustre FACW Burr Oak Quercus macrocarpa FACU Carolina Coralbead Cocculus carolinus FACU Bristly Buttercup Ranunculus hispidus FACW Burr-Reed Sedge Carex sparganioides FAC Carolina Dayflower Commelina caroliniana FACU Bristly Mousetail Myosurus apetalus FACW Bush's Blackberry Rubus bushii FACU Carolina Desert-Thorn Lycium carolinianum FACW Bristly-Fruit Scaleseed Spermolepis echinata FACU Bush's Sedge Carex bushii OBL Carolina Elephant's-Foot Elephantopus carolinianus FAC Bristly-Stalk Sedge Carex leptalea OBL Bushy Bird's-Beak Cordylanthus ramosus FACW Carolina False Buckthorn Frangula caroliniana FACU Brittle Bladder Fern Cystopteris fragilis FACU Bushy Bluestem Andropogon glomeratus FACW Carolina False Clubmoss Pseudolycopodiella caroliniana FACW Brittle Waternymph Najas minor OBL Bushy Cinquefoil Potentilla supina FACW Carolina Fanwort Cabomba caroliniana OBL Brittle-Stem Hemp-Nettle Galeopsis tetrahit FACU Bushy Goldentop Euthamia leptocephala FAC Carolina Fimbry Fimbristylis caroliniana FACW Britton's Sedge Carex tetrastachya FACW Bushy Mat-Grass Lippia alba FAC Carolina Horse-Nettle Solanum carolinense UPL Broad Beech Fern Phegopteris hexagonoptera FAC Bushy Seaside-Tansy Borrichia frutescens FACW Carolina Joint-Tail Grass Coelorachis cylindrica FAC Broad Halberd Fern Tectaria heracleifolia FACU Butler's Sand-Parsley Ammoselinum butleri FAC Carolina Laurel Cherry Prunus caroliniana FACU Broad Loose-Flower Sedge Carex laxiflora FACU Buttercup Hemieva Hemieva ranunculifolia FACW Carolina Leaf-Flower Phyllanthus caroliniensis FAC Broad-Fruit Burr-Reed Sparganium eurycarpum OBL Button Eryngo Eryngium yuccifolium FACW Carolina Pony's-Foot Dichondra carolinensis FAC Broad-Leaf Carpet Grass Axonopus compressus FACW Button Mangrove Conocarpus erectus FACW Carolina Rose Rosa carolina FACU Broad-Leaf Cat-Tail Typha latifolia OBL Cabbage Palmetto Sabal palmetto FACW Carolina Sea-Lavender Limonium carolinianum OBL Broad-Leaf Enchanter's-Nightshade Circaea California Adder's-Tongue Ophioglossum californicum FAC Carolina Sedge Carex caroliniana OBL canadensis FACU California Amaranth Amaranthus californicus FACW Carolina Spider-Lily Hymenocallis occidentalis FACW Broad-Leaf Liverseed Grass Urochloa platyphylla FAC California Brickellbush Brickellia californica FACU Carolina Tassel-Rue Trautvetteria caroliniensis FACW Broad-Leaf Lupine Lupinus latifolius FAC California Butterwort Pinguicula macroceras OBL Carolina Vetch Vicia caroliniana UPL Broad-Leaf Pepperwort Lepidium latifolium FACW California Club-Rush Schoenoplectus californicus OBL Carolina Violet Viola villosa FACU Broad-Leaf Pondweed Potamogeton natans OBL California False Hellebore Veratrum californicum OBL Carolina Wild Petunia Ruellia caroliniensis FAC Broad-Leaf Rosette Grass Dichanthelium latifolium FACU California Loosestrife Lythrum californicum OBL Carolina Willow Salix caroliniana FACW Broad-Lip Twayblade Neottia convallarioides FACW California Satintail Imperata brevifolia FAC Carpenter's-Square Scrophularia marilandica FACU Broad-Wing Sedge Carex alata OBL California Saw-Grass Cladium californicum OBL Carpet Vervain Verbena bracteata FACU Brome Six-Weeks Grass Vulpia bromoides FAC California Waterwort Elatine californica OBL Carrizo Creek Groundsel Packera spellenbergii FACU Bronze-Head Oval Sedge Carex foenea UPL California Wild Oat Grass Danthonia californica FACU Cascade Azalea Rhododendron albiflorum FACW Brook Cinquefoil Potentilla rivalis FACW California Willow Dock Rumex californicus FACW Cascade Mountain-Ash Sorbus scopulina FACU Brook Crown Grass Paspalum acuminatum OBL Camelthorn Alhagi maurorum FAC Castor-Bean Ricinus communis FACU Brook Lobelia Lobelia kalmii OBL Camphor Daisy Rayjacksonia phyllocephala FAC Catbird Grape Vitis palmata FACW Brook Primrose Primula parryi FAC Camphortree Cinnamomum camphora UPL Catchfly Grass Leersia lenticularis OBL Brookside Alder Alnus serrulata OBL Canada-Aster Canadanthus modestus FAC Catchfly Prairie-Gentian Eustoma exaltatum FACW Broom Rosette Grass Dichanthelium scoparium FACW Canadian Black-Snakeroot Sanicula canadensis FACU Catnip Nepeta cataria FACU Broom-Corn Sorghum bicolor FACU Canadian Blue Lettuce Lactuca canadensis FACU Cat-Tail Gayfeather Liatris pycnostachya FAC Broom-Sedge Andropogon virginicus FACU Canadian Bunchberry Cornus canadensis FACU Cat-Tail Sedge Carex typhina OBL Brown Beak Sedge Rhynchospora fusca OBL Canadian Clearweed Pilea pumila FAC Cedar Elm Ulmus crassifolia FAC Brown Bog Sedge Carex buxbaumii OBL Canadian Goldenrod Solidago canadensis FACU Cerro Hawthorn Crataegus erythropoda FAC Brown-Bract Pussytoes Antennaria umbrinella FACU Canadian Gooseberry Ribes oxyacanthoides FACU Chaffweed Lysimachia minima FACW Browne's Wild Basil Clinopodium brownei OBL Canadian Honewort Cryptotaenia canadensis FAC Chairmaker's Club-Rush Schoenoplectus americanus OBL Brown-Eyed-Susan Rudbeckia triloba FACU Canadian Horseweed Erigeron canadensis FACU Chamber-Bitter Phyllanthus urinaria FAC Brown-Fruit Rush Juncus pelocarpus OBL Canadian Lousewort Pedicularis canadensis FACU Chameleon Houttuynia cordata FAC Brownish Beak Sedge Rhynchospora capitellata OBL Canadian Milk-Vetch Astragalus canadensis FAC Chamisso's Candy-Flower Montia chamissoi OBL Brownish Sedge Carex brunnescens FAC Canadian Moonseed Menispermum canadense FACU Chamisso's Cotton-Grass Eriophorum chamissonis OBL Brown-Ray Knapweed Centaurea jacea FACU Canadian Plum Prunus nigra FACU Chaparral Willowherb Epilobium minutum FACU Brown's Yellowtops Flaveria brownii FACW Canadian Rockcress Boechera stricta FACU Chapman's Arrowhead Sagittaria chapmanii OBL Brown-Seed Crown Grass Paspalum plicatulum FAC Canadian Rush Juncus canadensis OBL Chapman's Blue Grass Poa chapmaniana FACU Brown-Top Liverseed Grass Urochloa fusca FAC Canadian Single-Spike Sedge Carex scirpoidea FACU Chapman's Yellow Star-Grass Hypoxis rigida FACW Buck-Bean Menyanthes trifoliata OBL Canadian Thistle Cirsium arvense FACU Checkered Rattlesnake-Plantain Buck-Horn Plantain Plantago coronopus FAC Canadian Waterweed Elodea canadensis OBL Goodyera tesselata FACU Buckley's Mountain-Pink Zeltnera calycosa FACW Canadian White Violet Viola canadensis FACU Cherokee Sedge Carex cherokeensis FACW Buek's Groundsel Packera subnuda OBL Canadian Wild Ginger Asarum canadense FACU Cherry-Bark Oak Quercus pagoda FAC Buffalo Grass Bouteloua dactyloides FACU Canadian Wood-Nettle Laportea canadensis FAC Chestnut Rush Juncus castaneus OBL Buffel Grass Cenchrus ciliaris UPL Cane Beard Grass Bothriochloa barbinodis FACU Chestnut-Color Sedge Carex castanea FACW Bulblet Bladder Fern Cystopteris bulbifera FACW Canyon Bog Orchid Platanthera sparsiflora FACW Chickasaw Rose Rosa bracteata FACU Bulblet-Bearing Water-Hemlock Cicuta bulbifera OBL Canyon Grape Vitis arizonica FACU Chickenclaws Sarcocornia ambigua OBL Chickenspike Sphenoclea zeylanica OBL Coastal-Plain Umbrella Sedge Fuirena longa OBL Common Velvet Grass Holcus lanatus FAC Chicory Cichorium intybus FACU Coastal-Plain Yellow-Eyed-Grass Xyris Common Water-Hyacinth Eichhornia crassipes OBL Chihuahuan Arrowhead Sagittaria demersa OBL ambigua OBL Common Wood-Rush Luzula multiflora FAC China-Berry Melia azedarach FACU Coastal-Sand Sedge Carex incurviformis FAC Common Wormwood Artemisia vulgaris UPL Chinaroot Smilax hispida FAC Coatbuttons Tridax procumbens FACU Common Yampah Perideridia gairdneri FACU Chinese Bush-Clover Lespedeza cuneata FACU Cockroach-Berry Solanum capsicoides FACU Common Yarrow Achillea millefolium FACU Chinese Elm Ulmus parvifolia UPL Cock's-Head Astragalus agrestis FACU Common-Wireweed Sida acuta UPL Chinese Hemlock-Parsley Conioselinum chinense FACW Cock-Spur Hawthorn Crataegus crus-galli FAC Compact Brome Bromus madritensis UPL Chinese Mustard Brassica juncea FACU Coco-Yam Colocasia esculenta OBL Cone-Cup Spike-Rush Eleocharis tuberculosa OBL Chinese Privet Ligustrum sinense UPL Codlins-and-Cream Epilobium hirsutum FACW Coon's-Tail Ceratophyllum demersum OBL Chinese Silver Grass Miscanthus sinensis FACU Coffeeweed Senna obtusifolia FACU Cooper's Milk-Vetch Astragalus neglectus UPL Chinese Tallowtree Triadica sebifera FAC Cogon Grass Imperata cylindrica FACU Copper Iris Iris fulva OBL Chinese-Lantern Quincula lobata UPL Colombian Brome Bromus vulgaris UPL Copperweed Euphrosyne acerosa UPL Chinkapin Oak Quercus muehlenbergii FAC Colombian Waxweed Cuphea carthagenensis FAC Coral Dropseed Sporobolus domingensis FACU Chiricahua Mountain Stinkweed Colonial Bent Agrostis capillaris FAC Coral-Berry Symphoricarpos orbiculatus FACU Cleomella longipes FAC Colorado Rush Juncus confusus FACW Cordilleran Leopardbane Arnica mollis FAC Chocolate-Weed Melochia corchorifolia FAC Colorado Wood-Rush Luzula subcapitata OBL Cordilleran Valerian Valeriana acutiloba FAC Choke Cherry Prunus virginiana FACU Columbian Monkshood Aconitum columbianum FACW Corky-Stem Passion-Flower Passiflora suberosa UPL Christmas Fern Polystichum acrostichoides FACU Columbian Sedge Carex aperta FACW Corn Speedwell Veronica arvensis FACU Christmas-Candlestick Leonotis nepetifolia FACU Columbian Watermeal Wolffia columbiana OBL Corpse Black-Bindweed Fallopia dumetorum FACU Chufa Cyperus esculentus FACW Comb-Leaf Mermaidweed Proserpinaca pectinata OBL Corpus Christi Fleabane Erigeron procumbens FACW Church-Mouse Three-Awn Aristida dichotoma FACU Common Alp-Lily Lloydia serotina FACU Correll's False Dragonhead Physostegia correllii OBL Cinnamon Fern Osmundastrum cinnamomeum FACW Common Blown Grass Lachnagrostis filiformis FACU Cotton-Batting-Plant Pseudognaphalium stramineum Clammy Azalea Rhododendron viscosum FACW Common Boneset Eupatorium perfoliatum FACW FAC Clammy Hedge-Hyssop Gratiola neglecta OBL Common Buttonbush Cephalanthus occidentalis OBL Cottongrass Bulrush Scirpus cyperinus OBL Clark Valley Larkspur Delphinium geraniifolium FAC Common Canary Grass Phalaris canariensis FACU Coulter's Woolwort Laennecia coulteri FACW Clasping Pepperwort Lepidium perfoliatum FAC Common Chickweed Stellaria media FACU Cow Clover Trifolium wormskioldii FACW Clasping Twistedstalk Streptopus amplexifolius FACW Common Dandelion Taraxacum officinale FACU Cowcockle Vaccaria hispanica UPL Clasping Yellowtops Flaveria chlorifolia FACW Common Duckmeat Spirodela polyrhiza OBL Coyote Tobacco Nicotiana attenuata FAC Clasping-Coneflower Dracopis amplexicaulis FAC Common Duckweed Lemna minor OBL Crawe's Sedge Carex crawei FACW Clasping-Leaf St. John's-Wort Hypericum gymnanthum FACW Common Fig Ficus carica FACU Crawford's Sedge Carex crawfordii OBL Clasping-Leaf Venus'-Looking-Glass Triodanis Common Fox Sedge Carex vulpinoidea FACW Cream Woodbeauty Drymocallis convallaria FACU perfoliata FAC Common Globe-Amaranth Gomphrena globosa UPL Creeping Burrhead Echinodorus cordifolius OBL Cleft Sedge Carex fissuricola FACW Common Gypsyweed Veronica officinalis UPL Creeping Buttercup Ranunculus repens FACW Climbing Black-Bindweed Fallopia scandens FACU Common Hackberry Celtis occidentalis FACU Creeping Eryngo Eryngium prostratum FACW Climbing Dayflower Commelina diffusa FACW Common Hop Humulus lupulus FACU Creeping Juniper Juniperus horizontalis UPL Climbing Hempvine Mikania scandens FACW Common Hoptree Ptelea trifoliata FAC Creeping Love Grass Eragrostis reptans OBL Climbing Nightshade Solanum dulcamara FACU Common Juniper Juniperus communis UPL Creeping Meadow-Foxtail Alopecurus arundinaceus FACW Climbing Rose Rosa setigera FACU Common Mare's-Tail Hippuris vulgaris OBL Creeping Molasses Grass Melinis repens UPL Climbing-Dogbane Thyrsanthella difformis FACW Common Marsh-Mallow Althaea officinalis FACW Creeping Primrose-Willow Ludwigia repens OBL Clinton's Leafless-Bulrush Trichophorum clintonii FACU Common Milkweed Asclepias syriaca UPL Creeping River Grass Echinochloa polystachya FACW Closed Bottle Gentian Gentiana andrewsii FAC Common Moonwort Botrychium lunaria FAC Creeping Spike-Rush Eleocharis fallax OBL Closed Gentian Gentiana rubricaulis OBL Common Morning-Glory Ipomoea purpurea FACU Creeping Water-Hyssop Bacopa repens OBL Cloud Sedge Carex haydenii OBL Common Mouse-Ear Chickweed Creeping Wild Rye Elymus repens FACU Clustered Beak Sedge Rhynchospora glomerata OBL Cerastium fontanum FACU Creeping Yellow Wood-Sorrel Oxalis corniculata FACU Clustered Black-Snakeroot Sanicula odorata FAC Common Nipplewort Lapsana communis FAC Creeping Yellowcress Rorippa sylvestris FACW Clustered Burr-Reed Sparganium glomeratum OBL Common Panic Grass Panicum capillare FAC Creeping-Glow-Wort Sibbaldia procumbens FACU Clustered Bush-Mint Hyptis alata OBL Common Pawpaw Asimina triloba FACU Creeping-Inchplant Callisia repens FACU Clustered Fescue Festuca paradoxa FAC Common Persimmon Diospyros virginiana FAC Creeping-Jenny Lysimachia nummularia FACW Clustered Field Sedge Carex praegracilis FACW Common Red Raspberry Rubus idaeus FACU Creeping-Snowberry Gaultheria hispidula FACW Clustered Marsh Squaw-Weed Tephroseris palustris FACW Common Reed Phragmites australis FACW Cress-Leaf Groundsel Packera glabella FACW Clustered Mille-Graines Oldenlandia uniflora FACW Common River Grass Scolochloa festucacea OBL Crested Anoda Anoda cristata FAC Clustered Mountain-Mint Pycnanthemum muticum UPL Common Rush Juncus pylaei OBL Crested Arrowhead Sagittaria cristata OBL Clustered Yellowtops Flaveria trinervia FAC Common Selfheal Prunella vulgaris FAC Crested Dog's-Tail Grass Cynosurus cristatus FACU Coaltown Sagebrush Artemisia cana FACU Common Sheep Sorrel Rumex acetosella FAC Crested Saltbush Atriplex mucronata FAC Coarse Globe Beak Sedge Rhynchospora recognita FACW Common Silver-Hair Grass Aira caryophyllea FACU Crested Sedge Carex cristatella FACW Coastal Marsh-Pennywort Hydrocotyle bonariensis FACW Common Snowberry Symphoricarpos albus UPL Crested Wood Fern Dryopteris cristata OBL Coastal Salt Grass Distichlis spicata FACW Common Sow-Thistle Sonchus oleraceus UPL Crested Yellow Orchid Platanthera cristata OBL Coastal Scorpion-Weed Phacelia laxa FAC Common Spike-Rush Eleocharis palustris OBL Crimson-Eyed Rose-Mallow Hibiscus moscheutos OBL Coastal Searocket Cakile lanceolata FACW Common St. John's-Wort Hypericum perforatum UPL Crippled-Cranefly Tipularia discolor FAC Coastal Sedge Carex exilis OBL Common Sunflower Helianthus annuus FACU Crossvine Bignonia capreolata FAC Coastal Sweet-Pepperbush Clethra alnifolia FACW Common Tansy Tanacetum vulgare FACU Crow Garlic Allium vineale FACU Coastal-Plain Beak Sedge Rhynchospora stenophylla OBL Common Three-Seed-Mercury Acalypha rhomboidea FACU Crow-Foot Violet Viola pedatifida FACU Coastal-Plain Sedge Carex crebriflora OBL Common Timothy Phleum pratense FACU Crowned Beggarticks Bidens trichosperma OBL Crowpoison Nothoscordum bivalve FACU Desert American-Aster Symphyotrichum expansum OBL Dwarf Chinkapin Oak Quercus prinoides UPL Cuban-Jute Sida rhombifolia FACU Desert Horse-Purslane Trianthema portulacastrum FACW Dwarf Palmetto Sabal minor FACW Cucumber-Leaf Sunflower Helianthus debilis FAC Desert Mountain-Pink Zeltnera exaltata FACW Dwarf Plantain Plantago pusilla FAC Cucumber-Tree Magnolia acuminata FACU Desert Ragwort Senecio eremophilus FAC Dwarf Red Raspberry Rubus pubescens FACW Cultivated Rice Oryza sativa OBL Desert Tobacco Nicotiana obtusifolia FACU Dwarf Saltwort Salicornia bigelovii OBL Cultivated Tobacco Nicotiana tabacum UPL Desert-Willow Chilopsis linearis FACU Dwarf Scouring-Rush Equisetum scirpoides FAC Culver's-Root Veronicastrum virginicum FAC Devil's-Club Oplopanax horridus FACU Dwarf St. John's-Wort Hypericum mutilum FACW Cumberland Sand-Reed Calamovilfa arcuata OBL Devil's-Darning-Needles Clematis virginiana FAC Dwarf Sundew Drosera brevifolia OBL Cup-Plant Silphium perfoliatum FAC Devil's-Horsewhip Achyranthes aspera UPL Dwarf Thistle Cirsium drummondii FAC Cupseed Calycocarpum lyonii FACW Devil's-Pitchfork Bidens frondosa FACW Dwarf Umbrella Sedge Fuirena pumila OBL Curly Blue Grass Poa secunda FACU Devil's-Walkingstick Aralia spinosa FACU Dwarf Water-Lily Nymphaea leibergii OBL Curly Dock Rumex crispus FAC Devilwood Cartrema americana FAC Dwarf Woollyheads Psilocarphus brevissimus FACW Curly Pondweed Potamogeton crispus OBL Dewey's Sedge Carex deweyana FACU Eared Redstem Ammannia auriculata OBL Curly Sedge Carex rupestris FACU Dewy-Stem Willow Salix irrorata FACW Early Azalea Rhododendron prinophyllum FAC Curly-Cup Gumweed Grindelia squarrosa UPL Diamond-Leaf Frogfruit Phyla fruticosa FAC Early Blue Violet Viola subsinuata FACU Cursed Buttercup Ranunculus sceleratus OBL Diamond-Leaf Pseudosaxifrage Micranthes rhomboidea FAC Early Buttercup Ranunculus fascicularis FAC Curtiss' Yellow Star-Grass Hypoxis curtissii FACW Different-Nerve Sedge Carex heteroneura FACW Early Crown Grass Paspalum praecox FACW Curved Sickle Grass Parapholis incurva FACU Diluvim Ladies'-Tresses Spiranthes diluvialis FACW Early Meadow-Rue Thalictrum dioicum FACW Curved Wood-Rush Luzula arcuata FACU Dioecious Sedge Carex sterilis OBL Early St. John's-Wort Hypericum nudiflorum FACW Curve-Pod Yellowcress Rorippa curvisiliqua OBL Disk Water-Hyssop Bacopa rotundifolia OBL Early-Leaf Brome Bromus latiglumis FACW Cushion Wild Buckwheat Eriogonum ovalifolium UPL Ditch Rabbit's-Foot Grass Polypogon interruptus OBL Eastern Arborvitae Thuja occidentalis FACW Cushion-Pink Silene acaulis FAC Ditch Reed Grass Calamagrostis scopulorum FAC Eastern Black Nightshade Solanum ptychanthum FACU Cusick's Speedwell Veronica cusickii FAC Ditch-Stonecrop Penthorum sedoides OBL Eastern Blue-Eyed-Grass Sisyrinchium atlanticum FACW Cusp Clover Trifolium mucronatum FACW Dixie Liverseed Grass Urochloa ramosa FACU Eastern Bluestar Amsonia tabernaemontana FACW Cut-Leaf Blackberry Rubus laciniatus FACU Dixie Stitchwort Minuartia muscorum FACU Eastern Bottle-Brush Grass Elymus hystrix FACU Cut-Leaf Evening-Primrose Oenothera laciniata FACU Dixie Tick-Trefoil Desmodium tortuosum FACU Eastern Cottonwood Populus deltoides FAC Cut-Leaf Grape Fern Sceptridium dissectum FAC Dock-Leaf Smartweed Persicaria lapathifolia OBL Eastern Daisy Fleabane Erigeron annuus FACU Cut-Leaf Ground-Cherry Physalis angulata FAC Dog-Fennel Eupatorium capillifolium FACU Eastern False Rue-Anemone Enemion biternatum FAC Cut-Leaf Teasel Dipsacus laciniatus UPL Door-Yard Dock Rumex longifolius FAC Eastern Featherbells Stenanthium gramineum FAC Cut-Leaf Toothwort Cardamine concatenata FACU Dot-Leaf Water-Lily Nymphaea ampla OBL Eastern Fox Sedge Carex triangularis OBL Cut-Leaf Water-Horehound Lycopus americanus OBL Dotted Duckmeat Landoltia punctata OBL Eastern Hop-Hornbeam Ostrya virginiana FACU Cut-Leaf Water-Milfoil Myriophyllum pinnatum OBL Dotted Smartweed Persicaria punctata OBL Eastern Leatherwood Dirca palustris FAC Cut-Leaf-Water-Parsnip Berula erecta OBL Douglas' Knotweed Polygonum douglasii FACU Eastern Marsh Fern Thelypteris palustris OBL Cylinder Spike-Rush Eleocharis cylindrica OBL Douglas' Sedge Carex douglasii FAC Eastern Mock Grama Tripsacum dactyloides FAC Cylindric-Fruit Primrose-Willow Ludwigia glandulosa OBL Douglas-Fir Pseudotsuga menziesii FACU Eastern Narrow-Leaf Sedge Carex amphibola OBL Cypress Rosette Grass Dichanthelium dichotomum FAC Downy Birch Betula pubescens FACW Eastern Poison Ivy Toxicodendron radicans FACU Cypress-Knee Sedge Carex decomposita OBL Downy Carrion-Flower Smilax pulverulenta FACU Eastern Poison-Oak Toxicodendron pubescens FACU Cypress-Like Sedge Carex pseudocyperus OBL Downy Hawthorn Crataegus mollis FAC Eastern Prickly Gooseberry Ribes cynosbati FACU Cypress-Swamp Sedge Carex joorii OBL Downy Lobelia Lobelia puberula FACW Eastern Red-Cedar Juniperus virginiana UPL Cypress-Vine Ipomoea quamoclit FACU Downy Milk-Pea Galactia volubilis FACU Eastern Star Sedge Carex radiata FAC Daffodil Leopardbane Arnica latifolia FAC Downy Phlox Phlox pilosa FACU Eastern Swamp Pseudosaxifrage Dagger-Leaf Rush Juncus ensifolius FACW Downy Service-Berry Amelanchier arborea FACU Micranthes pensylvanica FACW Dagger-Leaf Spike-Rush Eleocharis lanceolata FACW Downy Willowherb Epilobium strictum OBL Eastern Swamp-Privet Forestiera acuminata OBL Daisy-Leaf Moonwort Botrychium matricariifolium FACU Downy Yellow Violet Viola pubescens FACU Eastern Teaberry Gaultheria procumbens FACU Dark Beardtongue Penstemon whippleanus FACU Dragon's-Mouth Arethusa bulbosa OBL Eastern Wahoo Euonymus atropurpureus FACU Dark-Green Bulrush Scirpus atrovirens OBL Drumheads Polygala cruciata OBL Eastern White Pine Pinus strobus FACU Dark-Throat Shootingstar Dodecatheon pulchellum FACW Drummond's Halfchaff Sedge Lipocarpha drummondii FACW Eastern Woodland Sedge Carex blanda FAC Darlington's Oak Quercus hemisphaerica FACW Drummond's Rush Juncus drummondii FACW Eastern Yellow Star-Grass Hypoxis hirsuta FACW Davis' Sedge Carex davisii FAC Drummond's Sedge Cyperus drummondii OBL Ebony Spleenwort Asplenium platyneuron FACU Day Flowering-Jassamine Cestrum diurnum UPL Drummond's Willow Salix drummondiana FACW Edwards Plateau Cornsalad Valerianella texana FAC Deciduous Holly Ilex decidua FAC Dry-Spike Sedge Carex siccata UPL Egg-Leaf Indian-Plantain Arnoglossum ovatum FAC Deciduous Traveler's-Joy Clematis ligusticifolia FACU Duck-Potato Sagittaria latifolia OBL Egg-Leaf Rosette Grass Dichanthelium ovale FACU Deer Grass Muhlenbergia rigens FACU Dudley's Rush Juncus dudleyi FACW Eggleston's Sedge Carex egglestonii FACU Deer Sedge Carex hallii FAC Dune False Bluestem Schizachyrium littorale FACW Egyptian Water Crown Grass Paspalidium geminatum OBL Deerberry Vaccinium stamineum FACU Durango Yellowcress Rorippa ramosa FACW Eight-Flower Six-Weeks Grass Vulpia octoflora FACU Deer-Root Iva axillaris FAC Dusky Willow Salix melanopsis FACW Eight-Petal Mountain-Avens Dryas ajanensis UPL Deer-Tongue Rosette Grass Dichanthelium clandestinum FAC Dusky-Seed Sedge Carex pelocarpa FACU Electric Peak Larkspur Delphinium glaucescens FACU Delicate Spike-Rush Eleocharis bella FACW Dwarf Arctic Groundsel Packera heterophylla FACU Elegant Milk-Vetch Astragalus eucosmus FACU Delta Arrowhead Sagittaria platyphylla OBL Dwarf Bladderwort Utricularia ochroleuca OBL Elephant Grass Cenchrus purpureus FAC Delta Club-Rush Schoenoplectus deltarum OBL Dwarf Blueberry Vaccinium caespitosum FAC Elk Sedge Carex garberi FACW Dense-Flower Cord Grass Spartina densiflora OBL Dwarf Blue-Eyed-Grass Sisyrinchium minus FACU Elk Thistle Cirsium foliosum FACU Dense-Flower Dock Rumex densiflorus FACW Dwarf Burhead Pygmy Swordplant Elliot's Love Grass Eragrostis elliottii FACW Dense-Tuft Hair Sedge Bulbostylis capillaris FACU Helanthium tenellum OBL Elliott's Bent Agrostis elliottiana FACU Deptford Pink Dianthus armeria UPL Dwarf Buttercup Ranunculus pygmaeus FACW Elliott's Blueberry Vaccinium elliottii FACW Elliott's Bluestem Andropogon gyrans FACU Fendler's Meadow-Rue Thalictrum fendleri FAC Four-Angle Flat Sedge Cyperus tetragonus FAC Elliptic Spike-Rush Eleocharis elliptica OBL Fendler's Waterleaf Hydrophyllum fendleri FACW Four-Flower Yellow-Loosestrife Lysimachia quadriflora FACW Emory's Sedge Carex emoryi OBL Fern Pondweed Potamogeton robbinsii OBL Four-Line Honeysuckle Lonicera involucrata FACU Engelmann's Knotweed Polygonum engelmannii FACU Fescue Sedge Carex festucacea FACW Four-Spike Finger Grass Eustachys neglecta FACU Engelmann's Sea-Grass Halophila engelmannii OBL Few-Flower Beak Sedge Rhynchospora rariflora OBL Four-Spike Heliotrope Heliotropium procumbens FACW Engelmann's Spike-Rush Eleocharis engelmannii FACW Few-Flower Beggarticks Bidens leptocephala FACW Four-Wing Evening-Primrose Oenothera tetraptera FAC Engelmann's Spruce Picea engelmannii FAC Few-Flower Nut-Rush Scleria pauciflora FACW Fowl Blue Grass Poa palustris FACW English Ivy Hedera helix UPL Few-Flower Sedge Carex pauciflora OBL Fowl Manna Grass Glyceria striata OBL English Plantain Plantago lanceolata FAC Few-Flower Spike-Rush Eleocharis quinqueflora OBL Foxglove Beardtongue Penstemon digitalis FACW Entire-Leaf Indian-Paintbrush Castilleja indivisa FAC Few-Leaf Sunflower Helianthus occidentalis FACU Fox-Tail Barley Hordeum jubatum FACW Entire-Leaf Rosewort Rhodiola integrifolia FACU Few-Nerve Cotton-Grass Eriophorum tenellum OBL Fox-Tail Club-Moss Lycopodiella alopecuroides OBL Entire-Leaf Rosinweed Silphium integrifolium FAC Few-Seed Sedge Carex oligosperma OBL Fox-Tail Muhly Muhlenbergia andina FAC Entire-Leaf Thelypody Thelypodium integrifolium FACW Fiddle Dock Rumex pulcher FACW Fox-Tail Prairie-Clover Dalea leporina UPL Epiphytic Flat Sedge Cyperus lanceolatus FACW Fiddle-Leaf Hawk's-Beard Crepis runcinata FAC Fox-Tail Prickle Grass Crypsis alopecuroides FACW Erect Knotweed Polygonum erectum FAC Fiddle-Leaf Tobacco Nicotiana repanda FAC Fox-Tail Sedge Carex alopecoidea FACW Erect Prickly-Pear Opuntia stricta FACU Field Blackberry Rubus arvensis FAC Fragile-Stem American-Aster Symphyotrichum racemosum FACW Erect Spiderling Boerhavia erecta UPL Field Brome Bromus arvensis FACU Fragrant Bedstraw Galium triflorum FACU Erect Tropical Daisy Egletes viscosa FACW Field Crown Grass Paspalum laeve FACW Fragrant Heliotrope Heliotropium greggii FACW Eula's American-Aster Symphyotrichum eulae FAC Field Horsetail Equisetum arvense FAC Fragrant Indigo-Bush Amorpha nana UPL Eurasian Water-Milfoil Myriophyllum spicatum OBL Field Meadow-Foxtail Alopecurus pratensis FACW Fragrant Spike Sedge Kyllinga odorata FACW Eurasian-Buttercup Ficaria verna FACW Field Mouse-Ear Chickweed Cerastium arvense FACU Fragrant Sumac Rhus aromatica UPL European Alder Alnus glutinosa FACW Field Pansy Viola bicolor FAC Franciscan Bluebells Mertensia franciscana FACW European Barberry Berberis vulgaris UPL Field Pennycress Thlaspi arvense FACU Frank's Sedge Carex frankii OBL European Bird Cherry Prunus padus UPL Field Pussytoes Antennaria neglecta FACU Fraser's St. John's-Wort OBL European Buckthorn Rhamnus cathartica FACU Field Sow-Thistle Sonchus arvensis FAC Freckled Milk-Vetch Astragalus lentiginosus FACU European Burr-Reed Sparganium emersum OBL Field Thistle Cirsium discolor FACU Fremont's Goosefoot Chenopodium fremontii FACU European Privet Ligustrum vulgare FACU Finger False Dragonhead Physostegia digitalis FACW French Tamarisk Tamarix gallica FACW European Weeping Birch Betula pendula FACU Finger Flat Sedge Cyperus digitatus FACW Freshwater Cord Grass Spartina pectinata FACW Evening Rain-Lily Cooperia chlorosolen FAC Finger-Dogshade Cynosciadium digitatum FACW Fringed Brome Bromus ciliatus FAC Evening Trumpet-Flower Gelsemium sempervirens FACU Fire Cherry Prunus pensylvanica FACU Fringed Grass-of-Parnassus Parnassia fimbriata OBL Evergreen Bayberry Morella caroliniensis FAC Fire-on-the-Mountain Euphorbia cyathophora UPL Fringed Greenbrier Smilax bona-nox FACU Eyebane Euphorbia nutans FACU Firewheel Gaillardia pulchella UPL Fringed Nut-Rush Scleria ciliata FAC Fairy Beak Sedge Rhynchospora pusilla FACW Five-Horn Smotherweed Bassia hyssopifolia FACU Fringed Sedge Carex crinita OBL Fairy-Slipper Orchid Calypso bulbosa FACW Five-Leaf Chastetree Vitex negundo UPL Fringed Sneezeweed Helenium drummondii FACW Falkland Island Sedge Carex macloviana FACW Five-Lobe-Cucumber Cayaponia quinqueloba FAC Fringed Twinevine Funastrum cynanchoides FACU Fall Knotweed Polygonum spergulariiforme FACU Five-Petal Cliffbush Jamesia americana FACU Fringed Willowherb Epilobium ciliatum FACW Fall Panic Grass Panicum dichotomiflorum FAC Five-Stamen Tamarisk Tamarix chinensis FACW Fringed Windmill Grass Chloris ciliata UPL Fall Phlox Phlox paniculata FACU Flat-Leaf Bladderwort Utricularia intermedia OBL Fringed Yellow-Loosestrife Lysimachia ciliata FACW Fall Sneezeweed Helenium autumnale FACW Flat-Stalk Pondweed Potamogeton friesii OBL Fringe-Leaf Lobelia Lobelia fenestralis FAC Falling Dewberry Rubus apogaeus FACU Flat-Stem Blue Grass Poa compressa FACU Fringe-Leaf Wild Petunia Ruellia humilis FAC False Daisy Eclipta prostrata FACW Flat-Stem Pondweed Potamogeton zosteriformis OBL Frog-Bit Buttercup Ranunculus hydrocharoides OBL False Fissurewort Transberingia bursifolia FACU Flat-Stem Spike-Rush Eleocharis compressa FACW Frost Grape Vitis vulpina FAC False Hair Sedge Carex bulbostylis FACW Flattened Pipewort Eriocaulon compressum OBL Fuller's Teasel Dipsacus fullonum FACU False Hop Sedge Carex lupuliformis OBL Flat-Top Goldentop Euthamia graminifolia FACW Funck's Hair Sedge Bulbostylis funckii FACW False Indigo-Bush Amorpha fruticosa FACW Fleshy Clapdaisy Clappia suaedifolia FACW Fuzzy Maidenhair Adiantum tricholepis FAC False Lily-of-the-Valley Maianthemum canadense FACU Fleshy Starwort Stellaria crassifolia OBL Galingale Cyperus fuscus FACW False Mayweed Tripleurospermum maritimum FAC Floating Burr-Reed Sparganium fluctuans OBL Gallant-Soldier Galinsoga parviflora UPL False Melic Grass Schizachne purpurascens FACU Floating Manna Grass Glyceria septentrionalis OBL Gaping Grass Steinchisma hians FACW False Mermaidweed Floerkea proserpinacoides FACW Floating Marsh-Pennywort Hydrocotyle ranunculoides OBL Garden Bird's-Foot-Trefoil Lotus corniculatus FACU False Mountain Willow Salix pseudomonticola FACW Floating Primrose-Willow Ludwigia peploides OBL Garden Cornflower Centaurea cyanus FACU False Rhodes Grass Leptochloa crinita FACU Flodman's Thistle Cirsium flodmanii FAC Garden Cosmos Cosmos bipinnatus FACW False Uncinia Sedge Carex microglochin OBL Florida Bluehearts Buchnera floridana FAC Garden Orache Atriplex hortensis FAC Farewell-Summer Symphyotrichum lateriflorum FACW Florida Crown Grass Paspalum floridanum FACW Garden Vetch Vicia sativa FACU Far-Northern Buttercup Ranunculus hyperboreus OBL Florida Hedge-Nettle Stachys floridana FAC Garden Yellow-Rocket Barbarea vulgaris FACU Farr's Willow Salix farriae OBL Florida Mayten Maytenus phyllanthoides FAC Garden-Balsam Impatiens balsamina UPL Fascicled Beak Sedge Rhynchospora fascicularis OBL Florida Pellitory Parietaria floridana FACU Garlic-Mustard Alliaria petiolata FACU Feather Windmill Grass Chloris virgata FACU Florida Tassel-Flower Emilia fosbergii UPL Gaywings Polygaloides paucifolia FACU Feather-Bristle Beak Sedge Rhynchospora oligantha OBL Flowering Dogwood Cornus florida FACU Georgia Bulrush Scirpus georgianus OBL Feather-Stem Club-Moss Lycopodiella prostrata OBL Flowering-Quillwort Triglochin scilloides OBL Georgia Holly Ilex longipes FACW Feathery False Solomon's-Seal Maianthemum racemosum FAC Fold-Ear Lobelia Lobelia flaccidifolia FACW Germander Speedwell Veronica chamaedrys UPL Felwort Swertia perennis FAC Forest Blue Grass Poa nemoralis FACU German-Madwort Asperugo procumbens UPL Fen Grass-of-Parnassus Parnassia glauca OBL Forked Bluecurls Trichostema dichotomum FAC Geyer's Onion Allium geyeri FACU Fendler's Cowbane Oxypolis fendleri FACW Forked Fimbry Fimbristylis dichotoma FACW Geyer's Willow Salix geyeriana OBL Fendler's Flat Sedge Cyperus fendlerianus FAC Forked Rush Juncus dichotomus FACW Ghiesbreght's Panic Grass Panicum ghiesbreghtii FACW Giant Angelica Angelica ampla FACW Gray's Sedge Carex grayi FACW Gulf Coast Lateral-Bulrush Isolepis pseudosetacea OBL Giant Blue Iris Iris giganticaerulea OBL Greasewood Sarcobatus vermiculatus FAC Gulf Coast Spike-Rush Eleocharis cellulosa OBL Giant Bristle Grass Setaria magna FACW Great Basin Lyme Grass Leymus cinereus UPL Gulf Coast Twinevine Funastrum angustifolium OBL Giant Cane Arundinaria gigantea FACW Great Blue Lobelia Lobelia siphilitica OBL Gulf Cock's-Spur Grass Echinochloa crus-pavonis OBL Giant Dropseed Sporobolus giganteus UPL Great Coneflower Rudbeckia maxima FACW Gulf Cord Grass Spartina spartinae FAC Giant Helleborine Epipactis gigantea OBL Great Mullein Verbascum thapsus UPL Gulf Dune Crown Grass Paspalum monostachyum FACW Giant Ironweed Vernonia gigantea FAC Great Plains False Willow Baccharis salicina FAC Gulf Pipewort Eriocaulon koernickianum OBL Giant Lousewort Pedicularis procera FAC Great Plains Flat Sedge Cyperus lupulinus FACU Gulf Searocket Cakile geniculata FAC Giant Lyme Grass Leymus condensatus FACU Great Plains Groundsel Packera tampicana FACW Gulf Sebastian-Bush Ditrysinia fruticosa FAC Giant Plume Grass Saccharum giganteum FACW Great Plains Ladies'-Tresses Spiranthes magnicamporum FAC Gulf Skullcap Scutellaria cardiophylla FAC Giant Sunflower Helianthus giganteus FAC Great Plantain Plantago major FAC Gulf Swampweed Hygrophila lacustris OBL Giant Taro Alocasia macrorrhizos FACW Great Ragweed Ambrosia trifida FAC Gullfeed Scaevola plumieri FAC Giant-Chickweed Myosoton aquaticum FAC Great Red Indian-Paintbrush Castilleja miniata FAC Gum Bully Sideroxylon lanuginosum FACU Giant-Knotweed Reynoutria sachalinensis UPL Greater Bladder Sedge Carex intumescens OBL Gypsy-Flower Cynoglossum officinale FACU Giant-Reed Arundo donax FAC Greater Bladderwort Utricularia macrorhiza OBL Hair-Awn Muhly Muhlenbergia capillaris FACU Glade Morning-Glory Ipomoea sagittata FACW Greater Canadian St. John's-Wort Hair-Like Sedge Carex capillaris FACW Glandular Willowherb Epilobium hallianum FACW Hypericum majus FACW Hairy Beakgrain Diarrhena obovata FAC Glaucous Willowherb Epilobium glaberrimum FACW Greater Celandine Chelidonium majus FACU Hairy Beggarticks Bidens pilosa FACW Globe Beak Sedge Rhynchospora globularis FACW Greater Creeping Spearwort Ranunculus flammula FACW Hairy Big-Leaf Lupine Lupinus prunophilus FACU Globe Flat Sedge Cyperus echinatus FAC Greater Flowering-Rush Butomus umbellatus OBL Hairy Bittercress Cardamine hirsuta FAC Globe-Fruit Primrose-Willow Ludwigia sphaerocarpa OBL Greater Four-Point Evening-Primrose Hairy Buttercup Ranunculus sardous FAC Globe-Pod Pepperwort Lepidium appelianum FAC Oenothera rhombipetala FACU Hairy Cat's-Ear Hypochaeris radicata UPL Gloria-de-la-Manana Ipomoea carnea FACU Greater Fringed-Gentian Gentianopsis crinita OBL Hairy Clustervine Jacquemontia tamnifolia FAC Glossy False Buckthorn Frangula alnus FAC Greater St. John's-Wort Hypericum walteri OBL Hairy Cornsalad Valerianella amarella FACU Glossy-Seed Yellow Star-Grass Hypoxis Greater Straw Sedge Carex normalis OBL Hairy Crab Grass Digitaria sanguinalis FACU sessilis FAC Greater Water Dock Rumex britannica OBL Hairy Crabweed Fatoua villosa FAC Goatweed Capraria biflora FACW Greater Water-Starwort Callitriche heterophylla OBL Hairy Eared Rockcress Arabis pycnocarpa FACU Golden Alexanders Zizia aurea FAC Greater Yellow Water Buttercup Hairy Evening-Primrose Oenothera villosa FACU Golden Colicroot Aletris aurea FACW Ranunculus flabellaris OBL Hairy Fimbry Fimbristylis puberula OBL Golden Columbine Aquilegia chrysantha FACW Greek-Valerian Polemonium reptans FAC Hairy Hedge-Nettle Stachys pilosa FACW Golden Crown Grass Paspalum dilatatum FAC Green Adder's-Mouth Orchid Malaxis unifolia FAC Hairy Honeysuckle Lonicera hirsuta FAC Golden Crownbeard Verbesina encelioides FAC Green Arrow-Arum Peltandra virginica OBL Hairy Pagoda-Plant Blephilia hirsuta FACU Golden Currant Ribes aureum FACU Green Ash Fraxinus pennsylvanica FAC Hairy Primrose-Willow Ludwigia pilosa OBL Golden Gladecress Leavenworthia aurea FACU Green Bluebells Mertensia viridis UPL Hairy Solomon's-Seal Polygonatum pubescens FACU Golden Groundsel Packera aurea FACW Green Carpetweed Mollugo verticillata FAC Hairy Sweet-Cicely Osmorhiza claytonii FACU Golden Hedge-Hyssop Gratiola aurea OBL Green False Deathcamas Anticlea virescens FAC Hairy Umbrella Sedge Fuirena squarrosa OBL Golden Saxifrage Saxifraga chrysantha FACU Green Flat Sedge Cyperus virens FACW Hairy Water-Clover Marsilea vestita OBL Golden Tickseed Coreopsis tinctoria FAC Green Fringed Orchid Platanthera lacera FACW Hairy Wild Rye Elymus villosus FACU Golden Whitlow-Grass Draba aurea FAC Green Hawthorn Crataegus viridis FAC Hairy Woodland Brome Bromus pubescens FACU Golden-Fruit Sedge Carex aurea OBL Green Muhly Muhlenbergia racemosa FACW Hairy Wood-Rush Luzula acuminata FAC Golden-Hardhack FACW Green Woodland Orchid Platanthera clavellata OBL Hairy-Fruit Chervil Chaerophyllum tainturieri FAC Golden-Tongue Owl-Clover Orthocarpus luteus FACU Greendragon Arisaema dracontium FACW Hairy-Fruit Sedge Carex trichocarpa OBL Gold-of-Pleasure Camelina sativa FACU Greene's Rush Juncus greenei FAC Hairy-Joint Meadow-Parsnip Thaspium barbinode FAC Goodding's Black Willow Salix gooddingii FACW Green-Eye Heliotrope Heliotropium glabriusculum FACW Hairy-Seed Crown Grass Paspalum pubiflorum FACW Gopher-Tail Love Grass Eragrostis ciliaris FACU Green-Flower Wintergreen Pyrola chlorantha FACU Hairy-Stem Gooseberry Ribes hirtellum FAC Graceful Buttercup Ranunculus inamoenus FACW Green-Head Coneflower Rudbeckia laciniata FAC Halberd-Leaf Orache Atriplex patula FACW Graceful Cinquefoil Potentilla gracilis FAC Greenland Primrose Primula egaliksensis FACW Halberd-Leaf Rose-Mallow Hibiscus laevis OBL Graceful Sandmat Euphorbia hypericifolia FACU Green-Leaf Rattlesnake-Plantain Halberd-Leaf Tearthumb Persicaria arifolia OBL Graceful Sedge Carex gracillima FACW Goodyera oblongifolia FACU Hall's Club-Rush Schoenoplectus hallii OBL Grand Redstem Ammannia robusta OBL Green-Molly Neokochia americana FAC Hall's Panic Grass Panicum hallii FACU Grass-Leaf Arrowhead Sagittaria graminea OBL Green-Spot Nightshade Solanum douglasii FAC Hammock Fern Blechnum occidentale FAC Grass-Leaf Barbara's-Buttons Marshallia graminifolia OBL Greenstripe Amaranthus acanthochiton FACU Hammock Sedge Carex fissa OBL Grass-Leaf Lettuce Lactuca graminifolia FAC Green-Vein Ladies'-Tresses Spiranthes praecox FACW Handsome Sedge Carex formosa FAC Grass-Leaf Mud-Plantain Heteranthera dubia OBL Green-White Sedge Carex albolutescens FACW Handsome-Harry Rhexia virginica OBL Grass-Leaf Speedwell Veronica scutellata OBL Groove-Stem Indian-Plantain Arnoglossum plantagineum FAC Hapeman's Coolwort Sullivantia hapemanii FACW Grass-Leaf Starwort Stellaria graminea FACU Groundivy Glechoma hederacea FACU Hard Fescue Festuca trachyphylla UPL Grass-Like Fimbry Fimbristylis littoralis OBL Groundnut Apios americana FAC Harding Grass Phalaris aquatica FAC Grassy Pondweed Potamogeton gramineus OBL Groundseltree Baccharis halimifolia FAC Hard-Leaf Flat-Top-Goldenrod Solidago rigida FACU Gravel-Bar Muhly Muhlenbergia eludens FAC Grouseberry Vaccinium scoparium FACU Hard-Stem Club-Rush Schoenoplectus acutus OBL Gray Dogwood Cornus racemosa FAC Guadalupe Mountain Sedge Carex mckittrickensis FACW Harlequin Blueflag Iris versicolor OBL Gray Willow Salix bebbiana FACW Guadalupe Valerian Valeriana texana OBL Harper's Yellow-Eyed-Grass Xyris scabrifolia OBL Gray-Bark Grape Vitis cinerea FAC Guadalupe Waternymph Najas guadalupensis OBL Harsh Popcorn-Flower Plagiobothrys hispidulus FACW Gray-Leaf Willow Salix glauca FACW Guadeloupe-Cucumber Melothria pendula FAC Hart's Groundsel Packera hartiana FACW Gray's Beak Sedge Rhynchospora grayi FAC Guinea Grass Megathyrsus maximus FAC Hartweg's Crown Grass Paspalum hartwegianum FACW Harvestlice Agrimonia parviflora FACW Horsetail Milkweed Asclepias subverticillata FACU Jointed Crown Grass Paspalum distichum FACW Harvey's Beak Sedge Rhynchospora harveyi FAC Horsetail-Spike-Rush Eleocharis equisetoides OBL Jointed Flat Sedge Cyperus articulatus OBL Harvey's Buttercup Ranunculus harveyi FACU Humped Bladderwort Utricularia gibba OBL Joint-Leaf Rush Juncus articulatus OBL Hastate Orache Atriplex prostrata FACW Husk-Tomato Physalis pubescens FACU Jones' Sedge Carex jonesii FACW Hayden's Sedge Carex haydeniana FACU Hyssop-Leaf Bugseed Corispermum hyssopifolium FACU Jones' Selenia Selenia jonesii FACW Heart-Leaf Alexanders Zizia aptera FAC Hyssop-Leaf Sandmat Euphorbia hyssopifolia FACU Josiah Amaranth Amaranthus greggii FAC Heart-Leaf Buttercup Ranunculus cardiophyllus FACW Idaho Bent Agrostis idahoensis FACW Juba's-Bush Iresine diffusa FAC Heart-Leaf Four-O'clock Mirabilis nyctaginea UPL Idaho Blue-Eyed-Grass Sisyrinchium idahoense OBL Juda's-Bush Iresine rhizomatosa FACW Heart-Leaf Nettle Urtica chamaedryoides FACU Idaho Willow Salix wolfii FACW Jumpseed Persicaria virginiana FAC Heart-Leaf Paper Birch Betula cordifolia FACU Illinois Pondweed Potamogeton illinoensis OBL Jungle-Rice Echinochloa colona FACW Heart-Leaf Peppervine Ampelopsis cordata FAC Indian Goose Grass Eleusine indica FACU Juniper-Leaf Polypremum procumbens UPL Heart-Leaf Skullcap Scutellaria ovata FACU Indian Heliotrope Heliotropium indicum FACW Kalm's Brome Bromus kalmii FACU Heart-Leaf Twayblade Neottia cordata FACU Indian Joint-Vetch Aeschynomene indica FACW Kansas Arrowhead Sagittaria ambigua OBL Heart-Wing Sorrel Rumex hastatulus FAC Indian Love Grass Eragrostis pilosa FACU Kariba-Weed Salvinia molesta OBL Heavenly-Blue Morning-Glory Ipomoea violacea FAC Indian Rice Grass Achnatherum hymenoides FACU Keeled Lateral-Bulrush Isolepis carinata FACW Heavy Sedge Carex gravida FACW Indian Sweet-Clover Melilotus indicus FACU Kellogg's Knotweed Polygonum kelloggii FACW Hedge False Bindweed Calystegia sepium FAC Indian Wild Rice Zizania aquatica OBL Kellogg's Sedge Carex kelloggii OBL Hedgeflower Lantana camara FACU Indian Wood-Oats Chasmanthium latifolium FACU Kentucky Blue Grass Poa pratensis FACU Hedgehog Wood-Rush Luzula echinata FAC Indian-Hemp Apocynum cannabinum FAC Kentucky Rush Juncus anthelatus FACW Helleborine Epipactis helleborine FACU Indianola Beak Sedge Rhynchospora indianolensis FACW Khus-Khus Chrysopogon zizanioides FACW Heller's Rosette Grass Dichanthelium oligosanthes FACU Indian-Shot Canna indica FACW Kidney-Leaf Buttercup Ranunculus abortivus FAC Heller's Whitlow-Grass Draba helleriana FACU Indian-Strawberry Potentilla indica FAC Kidney-Leaf Grass-of-Parnassus Helmet-Flower Scutellaria integrifolia FACW Indian-Tobacco Lobelia inflata FAC Parnassia asarifolia OBL Hemlock Rosette Grass Dichanthelium portoricense FAC Inflated Duckweed Lemna gibba OBL Kidney-Leaf Mud-Plantain Heteranthera reniformis OBL Hemlock Water-Parsnip Sium suave OBL Inflated Narrow-Leaf Sedge Carex grisea FACW Kidney-Leaf White Violet Viola renifolia FACW Herb-of-Grace Bacopa monnieri OBL Inflated-Scale Flat Sedge Cyperus aggregatus FAC Kidney-Shape Sedge Carex reniformis OBL Herb-of-the-Cross Verbena officinalis FACU Inland Blue Grass Poa interior FAC King Solomon's-Seal Polygonatum biflorum FACU Herbwilliam Ptilimnium capillaceum FACW Inland Rush Juncus interior FACW King's Lupine Lupinus kingii FAC Hercules'-Club Zanthoxylum clava-herculis FACU Inland Sedge Carex interior OBL King's-Cureall Oenothera biennis FACU Hermaphrodite Flat Sedge Cyperus hermaphroditus FACU Innocent-Weed Cenchrus longispinus UPL Kiss-Me-Over-the-Garden-Gate Persicaria orientalis FACW Hierba-Del-Sapo Eryngium nasturtiifolium FACW Intermediate Service-Berry Amelanchier intermedia FACW Kiss-Me-Quick Portulaca pilosa FACU Highbush Blueberry Vaccinium corymbosum FACW Intermediate Spike-Rush Eleocharis intermedia OBL Knotted Rush Juncus nodosus OBL Highbush-Cranberry Viburnum opulus FAC Intermountain Bog Orchid Platanthera tescamnis OBL Knotted Spike-Rush Eleocharis interstincta OBL Hillman's Panic Grass Panicum hillmanii FACU Interrupted Club-Moss Spinulum annotinum FAC Knotty-Leaf Rush Juncus acuminatus OBL Hillside Buttercup Ranunculus jovis FACU Interrupted Fern Osmunda claytoniana FAC Knowlton's Hop-Hornbeam Ostrya knowltonii FAC Himalayan Blackberry Rubus armeniacus FAC Iodinebush Allenrolfea occidentalis FACW Korean-Clover Kummerowia stipulacea FACU Hirsute Sedge Carex complanata FAC Italian Bristle Grass Setaria italica FACU Kotzebue's Grass-of-Parnassus Hoar False Tansy-Aster Dieteria canescens UPL Itch Grass Rottboellia cochinchinensis FACU Parnassia kotzebuei OBL Hoary Bowlesia Bowlesia incana FACU Ivy-Leaf Duckweed Lemna trisulca OBL Kudzu Pueraria montana UPL Hoary Sedge Carex canescens OBL Ivy-Leaf Morning-Glory Ipomoea hederacea FAC Kunth's Evening-Primrose Oenothera kunthiana FACU Holly-Leaf Oregon-Grape Mahonia aquifolium UPL Jack Pine Pinus banksiana FACU Kunth's Maiden Fern Thelypteris kunthii FAC Holly-Leaf Waternymph Najas marina OBL Jack-in-the-Bush Chromolaena odorata FAC La Plata Sandspurry Spergularia platensis FACW Holm's Rocky Mountain Sedge Carex scopulorum FACW Jack-in-the-Pulpit Arisaema triphyllum FAC Labrador Indian-Paintbrush Castilleja septentrionalis FAC Honey Mesquite Prosopis glandulosa FACU Jamaican-Weed Nama jamaicense FACW Laceflower Ptilimnium nuttallii FACW Honey-Locust Gleditsia triacanthos FACU Japanese Barberry Berberis thunbergii UPL Lace-Lip Ladies'-Tresses Spiranthes laciniata OBL Honeyvine Cynanchum laeve FAC Japanese Bristle Grass Setaria faberi UPL Lacy Sleepy Daisy Xanthisma spinulosum UPL Hooded Arrowhead Sagittaria calycina OBL Japanese Climbing Fern Lygodium japonicum FACW Ladder Brake Pteris vittata FAC Hooded Blue Violet Viola sororia FAC Japanese Honeysuckle Lonicera japonica FACU Lake Huron Green Orchid Platanthera huronensis OBL Hooded Coralroot Corallorhiza striata UPL Japanese Hop Humulus japonicus FACU Lake Mistassini Primrose Primula mistassinica FACW Hooded Ladies'-Tresses Spiranthes romanzoffiana OBL Japanese Love Grass Eragrostis japonica OBL Lakebank Sedge Carex lacustris OBL Hooded Skullcap Scutellaria galericulata OBL Japanese Mazus Mazus pumilus FAC Lakecress Rorippa aquatica OBL Hood's Sedge Carex hoodii UPL Japanese Privet Ligustrum japonicum UPL Lakeshore Sedge Carex lenticularis OBL Hooker's Eryngo Eryngium hookeri FACW Japanese Stilt Grass Microstegium vimineum FAC Lamarck's Bedstraw Galium divaricatum FAC Hooker's Evening-Primrose Oenothera elata FACW Japanese Water Grass Echinochloa esculenta FACU Lamb's-Quarters Chenopodium album FACU Hooker's Orchid Platanthera hookeri FAC Japanese-Clover Kummerowia striata UPL Lamb-Tongue Ragwort Senecio integerrimus FAC Hook-Spur Violet Viola adunca FACU Japanese-Knotweed Reynoutria japonica FACU Lamp Rush Juncus effusus OBL Hop Sedge Carex lupulina OBL Japanese-Millet Echinochloa frumentacea UPL Lance-Leaf Buckthorn Rhamnus lanceolata FAC Horned Bladderwort Utricularia cornuta OBL Jaragua Hyparrhenia rufa FACU Lance-Leaf Figwort Scrophularia lanceolata FAC Horned Dandelion Taraxacum ceratophorum UPL Jersey Rabbit-Tobacco Pseudognaphalium luteoalbum FAC Lance-Leaf Gayfeather Liatris lancifolia FAC Horned-Pondweed Zannichellia palustris OBL Jerusalem-Artichoke Helianthus tuberosus FACU Lance-Leaf Goldenweed Pyrrocoma lanceolata FACU Hornemann's Willowherb Epilobium hornemannii FACW Jerusalem-Oak Dysphania botrys FACU Lance-Leaf Greenbrier Smilax smallii FACU Horsebrier Smilax rotundifolia FAC Jesuit's-Bark Iva frutescens FACW Lance-Leaf Leopardbane Arnica lanceolata FAC Horsesugar Symplocos tinctoria FAC Job's-Tears Coix lacryma-jobi FACW Lance-Leaf Moonwort Botrychium lanceolatum FACW Horse-Tail Crown Grass Paspalum repens OBL Johnson Grass Sorghum halepense FACU Lance-Leaf Springbeauty Claytonia lanceolata FACW Lance-Leaf Tickseed Coreopsis lanceolata FACU Lesser Creeping Rush Juncus repens OBL Long-Barb Arrowhead Sagittaria longiloba OBL Lance-Leaf Twistedstalk Streptopus lanceolatus FAC Lesser Duckweed Lemna aequinoctialis OBL Long-Beak Beak Sedge Rhynchospora scirpoides OBL Lance-Leaf Yellow-Loosestrife Lysimachia lanceolata FAC Lesser Fringed-Gentian Gentianopsis virgata OBL Long-Beak Sedge Carex sprengelii FACU Langlois' Violet Viola langloisii FACW Lesser Hawkbit Leontodon saxatilis FAC Long-Beak Stork's-Bill Erodium botrys FACU Languid-Lady Mertensia oblongifolia FAC Lesser Poverty Rush Juncus tenuis FAC Long-Beak Water-Crowfoot Ranunculus longirostris OBL Lapland Sorrel Rumex lapponicus FAC Lesser Purple Fringed Orchid Platanthera psycodes FACW Long-Bract Frog Orchid Coeloglossum viride FACU Large Barnyard Grass Echinochloa crus-galli FAC Lesser Quaking Grass Briza minor FAC Long-Bract Spiderwort Tradescantia bracteata FACU Large Beak Sedge Rhynchospora macra OBL Lesser Round-Leaf Orchid Platanthera orbiculata FAC Long-Flower Catclaw Senegalia greggii UPL Large Buttercup Ranunculus macranthus FACW Lesser St. John's-Wort Hypericum tubulosum OBL Long-Horn False Rein Orchid Habenaria quinqueseta FACW Large Cranberry Vaccinium macrocarpon OBL Lesser Tussock Sedge Carex diandra OBL Long-Leaf Basket Grass Oplismenus hirtellus FACU Large Gallberry Ilex coriacea FACW Lesser Yellow Water Buttercup Ranunculus gmelinii FACW Long-Leaf Milkweed Asclepias longifolia FAC Large Gray Willow Salix cinerea FACW Licorice Bedstraw Galium circaezans FACU Long-Leaf Pine Pinus palustris FAC Large Mountain Bittercress Cardamine cordifolia OBL Licorice-Weed Scoparia dulcis FACU Long-Leaf Pondweed Potamogeton nodosus OBL Large Mountain Fleabane Erigeron coulteri FACW Liddon Sedge Carex petasata UPL Long-Leaf Starwort Stellaria longifolia FACW Large Selenia Selenia grandis FACW Lilac Beardtongue Penstemon gracilis FACU Long-Leaf Wedgescale Sphenopholis filiformis FAC Large Sweet Vernal Grass Anthoxanthum odoratum FAC Limber Honeysuckle Lonicera dioica FACU Long-Leaf Wood-Oats Chasmanthium sessiliflorum FAC Large-Flower Primrose-Willow Ludwigia grandiflora OBL Limeberry Triphasia trifolia FACU Long's Sedge Carex longii OBL Large-Flower Wild Hollyhock Iliamna grandiflora FACW Limestone Adder's-Tongue Ophioglossum engelmannii FACU Long-Spike Fluff Grass Tridens strictus FAC Large-Leaf Avens Geum macrophyllum FACW Limestone Bittercress Cardamine douglassii FACW Long-Spur Columbine Aquilegia longissima FACW Large-Leaf Grass-of-Parnassus Parnassia grandifolia OBL Limestone Bugheal Trichocoronis wrightii FACW Long-Stalk Clover Trifolium longipes FACW Large-Leaf Grove-Sandwort Moehringia macrophylla UPL Limestone Oak Fern Gymnocarpium robertianum FACU Long-Stalk Sedge Carex pedunculata OBL Large-Leaf Pondweed Potamogeton amplifolius OBL Limestone Prickly-Ash Zanthoxylum fagara FAC Long-Stalk Starwort Stellaria longipes FACW Large-Leaf Wood-Aster Eurybia macrophylla FACU Limestone Quillwort Isoetes butleri OBL Long-Stem Adder's-Tongue Ophioglossum petiolatum FACW Large-Seed Bittercress Cardamine macrocarpa FACW Limestone Spike-Rush Eleocharis occulta FACW Long-Style Rush Juncus longistylis FACW Large-Seed Forget-Me-Not Myosotis macrosperma FAC Limestone Wild Basil Clinopodium arkansanum FAC Long-Tube Evening-Primrose Oenothera flava FACW Late Goldenrod Solidago gigantea FAC Limestone Wild Petunia Ruellia strepens FAC Loose-Head Beak Sedge Rhynchospora chalarocephala OBL Late Lowbush Blueberry Vaccinium angustifolium FACU Limestone-Meadow Sedge Carex granularis OBL Lopsided Rush Juncus secundus FAC Late-Flowering Thoroughwort Eupatorium serotinum FAC Limestone-Swamp Bedstraw Galium brevipes OBL Loquat Eriobotrya japonica UPL Laurel Oak Quercus laurifolia FACW Limewater Brookweed Samolus ebracteatus FACW Lotus Sweetjuice Glinus lotoides FACW Laurel-Leaf Greenbrier Smilax laurifolia OBL Limpo Grass Hemarthria altissima FACW Louisiana Cup Grass Eriochloa punctata FACW Lawn American-Aster Symphyotrichum divaricatum OBL Lindheimer's Indigo Indigofera lindheimeriana FAC Louisiana Lettuce Lactuca ludoviciana FACU Lawn Burrweed Soliva sessilis UPL Lindheimer's Morning-Glory Ipomoea lindheimeri FACU Louisiana Sedge Carex louisianica OBL Lawn Marsh-Pennywort Hydrocotyle sibthorpioides FACW Lindheimer's Muhly Muhlenbergia lindheimeri FACW Louisiana Vetch Vicia ludoviciana UPL Lax Hornpod Mitreola petiolata FACW Linear-Leaf Candy-Flower Montia linearis FAC Love-in-a-Puff Cardiospermum halicacabum FAC Lax-Leaf Yellow-Eyed-Grass Xyris laxifolia OBL Linear-Leaf Wild Petunia Ruellia simplex FAC Low Goosefoot Chenopodium chenopodioides FACW Leafy American-Aster Symphyotrichum frondosum FACW Little Aguja Pondweed Potamogeton berchtoldii OBL Low Loosestrife Lythrum ovalifolium FACW Leafy Bladderwort Utricularia foliosa OBL Little Barley Hordeum pusillum FACU Low Milkweed Asclepias pumila UPL Leafy Goosefoot Chenopodium foliosum FACU Little Duckweed Lemna obscura OBL Low Northern Sedge Carex concinna FACU Leafy Leopardbane Arnica chamissonis FACW Little False Bluestem Schizachyrium scoparium FACU Low Nut-Rush Scleria verticillata OBL Leafy Pondweed Potamogeton foliosus OBL Little Floating Bladderwort Utricularia radiata OBL Low Pine-Barren Milkwort Polygala ramosa OBL Leafy Tussock Sedge Carex aquatilis OBL Little Green Sedge Carex viridula OBL Low Spearwort Ranunculus pusillus OBL Leafy-Bract American-Aster Symphyotrichum subspicatum FAC Little Ladies'-Tresses Spiranthes tuberosa UPL Low Spike Sedge Kyllinga pumila FACW Leafy-Bract Dwarf Rush Juncus capitatus FACU Little Red-Stem Monkey-Flower Mimulus rubellus FACW Low Water-Milfoil Myriophyllum humile OBL Lean Flat Sedge Cyperus setigerus FAC Little Walnut Juglans microcarpa FAC Lowland Bladder Fern Cystopteris protrusa FACW Least Duckweed Lemna minuta OBL Little Western Bittercress Cardamine oligosperma FAC Lowland Toothcup Rotala ramosior OBL Least Moonwort Botrychium simplex FAC Little Yellow-Rattle Rhinanthus minor FACU Lowland Yellow-Loosestrife Lysimachia hybrida OBL Least Muhly Muhlenbergia minutissima FAC Little-Fruit Puff Neptunia microcarpa FAC Luckynut Thevetia peruviana UPL Leatherleaf Chamaedaphne calyculata OBL Little-Head Nut-Rush Scleria oligantha FAC Lyall's Beardtongue Penstemon lyallii FACU Leathery Grape Fern Sceptridium multifidum FAC Little-Head Spike-Rush Eleocharis parvula OBL Lyre-Leaf Sage Salvia lyrata FAC Leathery Knotweed Polygonum achoreum FACU Little-Hip Hawthorn Crataegus spathulata FAC Mackenzie's Willow Salix prolixa FACW Leathery Rush Juncus coriaceus OBL Little-Hogweed Portulaca oleracea FAC Macoun's Buttercup Ranunculus macounii OBL Ledingham's False Dragonhead Little-Leaf Candy-Flower Montia parvifolia FACW Mad Dog Skullcap Scutellaria lateriflora FACW Physostegia ledinghamii OBL Little-Leaf Sedge Carex luzulifolia FACW Madagascar-Periwinkle Catharanthus roseus UPL Leiberg's Rosette Grass Dichanthelium leibergii FACU Little-Leaf Titi Cyrilla racemiflora FACW Madwort False Flax Camelina alyssum FACU Lemmon's Alkali Grass Puccinellia lemmonii FACW Little-Petal Woodbeauty Drymocallis micropetala FAC Maiden Pink Dianthus deltoides UPL Lemonbalm Melissa officinalis UPL Little-Pod False Flax Camelina microcarpa UPL Maiden-Cane Panicum hemitomon OBL Leoncita False Foxglove Agalinis calycina OBL Little-Tooth Sedge Carex microdonta OBL Maidenhair Spleenwort Asplenium trichomanes FAC Lesser Black-Scale Sedge Carex atrosquama FACU Live Oak Quercus virginiana FACU Maleberry Lyonia ligustrina FACW Lesser Bladder Sedge Carex vesicaria OBL Livid Sedge Carex livida OBL Malva-de-Caballo Malachra capitata FACU Lesser Bladderwort Utricularia minor OBL Lizard's-Tail Saururus cernuus OBL Manatee-Grass Syringodium filiforme OBL Lesser Burrdock Arctium minus FACU Loblolly Pine Pinus taeda FAC Manila Temple Grass Zoysia matrella FACU Lesser Canadian St. John's-Wort Lodgepole Pine Pinus contorta FACU Man-of-the-Earth Ipomoea pandurata FACU Hypericum canadense FACW Log Fern Dryopteris celsa OBL Many-Flower Marsh-Pennywort Hydrocotyle umbellata OBL Lesser Clearweed Pilea fontana OBL Long-Awn Cock's-Spur Grass Echinochloa walteri OBL Many-Flower Stickseed Hackelia floribunda FACU Many-Fruit Primrose-Willow Ludwigia polycarpa OBL Mesa Dropseed Sporobolus flexuosus FAC Mt. Albert Goldenrod Solidago simplex FACU Many-Head Rush Juncus polycephalos OBL Mexican Ash Fraxinus berlandieriana FAC Mt. Graham Spurred-Gentian Halenia rothrockii FAC Many-Head Sedge Carex sychnocephala FACW Mexican Bedstraw Galium mexicanum FAC Muck Sunflower Helianthus simulans FACW Many-Spike Flat Sedge Cyperus polystachyos FACW Mexican Buttonbush Cephalanthus salicifolius OBL Mud Fiddleleaf Nama stenocarpum FACW Many-Stem Springbeauty Claytonia multiscapa FAC Mexican Dock Rumex mexicanus FAC Mud Sedge Carex limosa OBL Maple-Leaf Arrow-Wood Viburnum acerifolium UPL Mexican Goatweed Capraria mexicana FAC Mudbank Crown Grass Paspalum dissectum OBL Marginal Wood Fern Dryopteris marginalis FACU Mexican Ground-Cherry Physalis philadelphica UPL Muehlenberg's Nut-Rush Scleria muehlenbergii OBL Maritime Rabbit's-Foot Grass Polypogon maritimus FACW Mexican Love Grass Eragrostis mexicana FACU Mule's-Fat Baccharis salicifolia FACW Marsh Arrow-Grass Triglochin palustris OBL Mexican Mosquito Fern Azolla microphylla OBL Mullein-Foxglove Dasistoma macrophylla FAC Marsh Bellflower Campanula aparinoides OBL Mexican Mud-Plantain Heteranthera mexicana OBL Muscadine Vitis rotundifolia FAC Marsh Blue Grass Poa leptocoma OBL Mexican Muhly Muhlenbergia mexicana FACW Muskflower Mimulus moschatus OBL Marsh Bristle Grass Setaria parviflora FAC Mexican Palo-Verde Parkinsonia aculeata FAC Muskroot Adoxa moschatellina FAC Marsh Cudweed Gnaphalium uliginosum FAC Mexican Primrose-Willow Ludwigia octovalvis OBL Naked Broom-Rape Orobanche uniflora UPL Marsh Fimbry Fimbristylis castanea OBL Mexican Rush Juncus mexicanus FACW Naked-Stem Alkali-Weed Cressa nudicaulis OBL Marsh Flat Sedge Cyperus pseudovegetus FACW Mexican Starwort Stellaria cuspidata FAC Naked-Stem Dewflower Murdannia nudiflora FACW Marsh Grass-of-Parnassus Parnassia palustris OBL Mexican-Devilweed Chloracantha spinosa FACW Nanny-Berry Viburnum lentago FACU Marsh Horsetail Equisetum palustre FACW Mexican-Fireplant Euphorbia heterophylla FACU Narcissus-Flower Thimbleweed Anemone narcissiflora FAC Marsh Ladies'-Tresses Spiranthes odorata OBL Mexican-Fireweed Bassia scoparia FACU Nard Sedge Carex nardina FACU Marsh Lousewort Pedicularis fluviatilis FACU Mexican-Tea Dysphania ambrosioides FAC Narrow Beech Fern Phegopteris connectilis FACU Marsh Meadow-Foxtail Alopecurus geniculatus OBL Michigan Lily Lilium michiganense FACW Narrow False Oat Trisetum spicatum FACU Marsh Mermaidweed Proserpinaca palustris OBL Mild Water-Pepper Persicaria hydropiper OBL Narrow Plume Grass Saccharum baldwinii FACW Marsh Phlox Phlox kelseyi FAC Mile-a-Minute-Vine Ipomoea cairica FACU Narrow-Cell Cornsalad Valerianella stenocarpa FACW Marsh Primrose-Willow Ludwigia palustris OBL Millet Beak Sedge Rhynchospora miliacea OBL Narrow-Flower Blue Grass Poa stenantha FAC Marsh Valerian Valeriana dioica FACW Miner's Pepperwort Lepidium densiflorum FAC Narrow-Fruit Horned Beak Sedge Marsh Vetchling Lathyrus palustris FACW Miner's-Lettuce Claytonia perfoliata FACW Rhynchospora inundata OBL Marsh Willowherb Epilobium palustre OBL Mingled Beak Sedge Rhynchospora mixta OBL Narrow-Leaf Bird's-Foot-Trefoil Lotus tenuis FACU Marsh-Aster Almutaster pauciflorus FACW Miniature Monkey-Flower Mimulus suksdorfii FACW Narrow-Leaf Blue-Eyed-Grass Sisyrinchium angustifolium FACW Marsh-Felwort Lomatogonium rotatum OBL Minute Duckweed Lemna perpusilla OBL Narrow-Leaf Burr-Reed Sparganium angustifolium OBL Marsh-Meadow Indian-Paintbrush Castilleja Miramar-Weed Hygrophila polysperma OBL Narrow-Leaf Carpet Grass Axonopus fissifolius FAC lineata FACW Mission Grass Cenchrus polystachios FACU Narrow-Leaf Cat-Tail Typha angustifolia OBL Marsh-Millet Zizaniopsis miliacea OBL Mississippi Buttercup Ranunculus laxicaulis OBL Narrow-Leaf Cottonwood Populus angustifolia FACW Marsh-Parsley Cyclospermum leptophyllum FAC Missouri Ironweed Vernonia missurica FACW Narrow-Leaf Dock Rumex stenophyllus FACW Marvel-of-Peru Mirabilis jalapa UPL Missouri Orange Coneflower Rudbeckia missouriensis UPL Narrow-Leaf Evening-Primrose Oenothera fruticosa FAC Maryland Black-Snakeroot Sanicula marilandica FACU Missouri Violet Viola missouriensis FACW Narrow-Leaf False Dragonhead Physostegia angustifolia FACW Maryland Golden-Aster Chrysopsis mariana FACU Missouri Willow Salix eriocephala FACW Narrow-Leaf Fireweed Chamaenerion angustifolium FAC Maryland Meadow-Beauty Rhexia mariana FACW Modoc Yellowcress Rorippa tenerrima FAC Narrow-Leaf Goosefoot Chenopodium leptophyllum FACU Maryland Milkwort Polygala mariana FACW Mohr's Thoroughwort Eupatorium mohrii FAC Narrow-Leaf Ironweed Vernonia lettermannii OBL Maryland Wild Sensitive-Plant Senna marilandica FAC Monkeypod Pithecellobium dulce UPL Narrow-Leaf Mountain-Mint Pycnanthemum tenuifolium FAC Mat Amaranth Amaranthus blitoides FAC Montana Sedge Carex media FACW Narrow-Leaf Mountain-Trumpet Collomia linearis FACU Matted Fiddleleaf Nama torynophyllum FACW Moor Rush Juncus stygius OBL Narrow-Leaf Paleseed Leucospora multifida FACW Matted Muhly Muhlenbergia richardsonis FAC Morrow's Honeysuckle Lonicera morrowii UPL Narrow-Leaf Primrose-Willow Ludwigia linearis OBL Matted Sandmat Euphorbia serpens FACU Mosquito Bulrush Scirpus hattorianus OBL Narrow-Leaf Silk-Grass Pityopsis graminifolia FACU Matted Saxifrage Saxifraga austromontana FACU Moss Gentian Gentiana fremontii OBL Narrow-Leaf Water-Plantain Alisma gramineum OBL Matted Water-Starwort Callitriche peploides OBL Mother-of-the-Evening Hesperis matronalis FACU Narrow-Leaf Whitetop Rhynchospora colorata FACW Maximilian Sunflower Helianthus maximiliani FACU Mountain American-Aster Symphyotrichum spathulatum FAC Narrow-Leaf Willow Salix exigua FACW May Grass Phalaris caroliniana FACW Mountain Azalea Rhododendron canescens FACW Narrow-Panicle Rush Juncus brevicaudatus OBL May-Apple Podophyllum peltatum FACU Mountain False Deathcamas Anticlea elegans FACW Narrow-Wing Water-Starwort Callitriche stenoptera OBL Maystar Trientalis borealis FAC Mountain Fly-Honeysuckle Lonicera villosa FACW Native Sedge Carex vernacula FAC Mazapan Malvaviscus penduliflorus FAC Mountain Hare Sedge Carex phaeocephala FACU Nealley's Viper Grass Dinebra nealleyi FACW Mccalla's Willow Salix maccalliana OBL Mountain Maple Acer spicatum FACU Nebraska Sedge Carex nebrascensis OBL Meadow Barley Hordeum brachyantherum FAC Mountain Muhly Muhlenbergia montana FACU Neches River Rose-Mallow Hibiscus dasycalyx OBL Meadow Beardtongue Penstemon rydbergii FAC Mountain Ninebark Physocarpus monogynus FACU Necklace Sedge Carex projecta FACW Meadow False Rye Grass Schedonorus pratensis FACU Mountain Pseudosaxifrage Micranthes occidentalis FAC Neckweed Veronica peregrina FACW Meadow Garlic Allium canadense FACU Mountain Spike-Rush Eleocharis montana OBL Needle Beak Sedge Rhynchospora capillacea OBL Meadow Horsetail Equisetum pratense FACW Mountain Sweet-Cicely Osmorhiza berteroi FACU Needle Spike-Rush Eleocharis acicularis OBL Meadow Love Grass Eragrostis refracta FACW Mountain Tansy-Mustard Descurainia incana UPL Needle Viper Grass Dinebra panicea FACW Meadow Poison Camas Toxicoscordion venenosum FAC Mountain Tarplant Madia glomerata FACU Needle-Leaf Burrobush Ambrosia monogyra FACU Meadow Spike-Moss Selaginella apoda FACW Mountain Timothy Phleum alpinum FAC Needle-Leaf Pincushion-Plant Navarretia intertexta FACW Meadow Thistle Cirsium scariosum FAC Mountain-Marsh Ragwort Senecio sphaerocephalus FAC Needle-Leaf Rosette Grass Dichanthelium aciculare FACU Meadow Willow Salix petiolaris OBL Mountain-Meadow Cinquefoil Potentilla glaucophylla FACW Needle-Pod Rush Juncus scirpoides FACW Mead's Sedge Carex meadii FAC Mountain-Sorrel Oxyria digyna FAC Needle-Tip Blue-Eyed-Grass Sisyrinchium mucronatum FAC Mealy False Acacia Vachellia farnesiana FACU Mourning Love Grass Eragrostis lugens FACU Nelson's Rice Grass Achnatherum nelsonii UPL Mertens' Rush Juncus mertensianus OBL Mouse's-Ear Stachys crenata FAC Nelson's Sedge Carex nelsonii FAC Mertens' Sedge Carex mertensii FAC Mrs. Austin's Knotweed Polygonum austiniae FACU Nerveless Woodland Sedge Carex leptonervia FAC Nested Goldeneggs Taraxia breviflora FACU Northern Stinkweed Cleomella angustifolia FAC Ozark Witch-Hazel Hamamelis vernalis FAC Net-Leaf Hackberry Celtis reticulata UPL Northern Sweet Vernal Grass Anthoxanthum hirtum FACW Pacific Bog Sedge Kobresia myosuroides FAC Netted Chain Fern Woodwardia areolata OBL Northern Water-Horehound Lycopus uniflorus OBL Pacific Mitrewort Ozomelis trifida FAC Netted Nut-Rush Scleria reticularis FACW Northern Watermeal Wolffia borealis OBL Pacific Willow Salix lasiandra FACW Nettle-Leaf Goosefoot Chenopodium murale FACU Northern Water-Plantain Alisma triviale OBL Pacific Wood-Rush Luzula comosa FAC Nevada Bulrush Scirpus nevadensis OBL Northern White Oak Quercus alba FACU Pacific Wormwood Artemisia campestris UPL Nevada Vetchling Lathyrus lanszwertii FACU Northern White Rush Juncus albescens OBL Pacific Yew Taxus brevifolia FACU New England American-Aster Symphyotrichum novae-angliae FACW Northern Wild Rice Zizania palustris OBL Pacific-Coast Eared Rockcress Arabis eschscholtziana FACU New England Blue Violet Viola novae-angliae FAC Northern Yellow-Eyed-Grass Xyris montana OBL Pai'i'iho Christella dentata FAC New Mexico Bare-Ray-Aster Psilactis asteroides FACW Northwest Territory Sedge Carex utriculata OBL Paiuteweed Suaeda calceoliformis FACW New Mexico Vervain Verbena macdougalii FAC Northwestern Showy Sedge Carex spectabilis FACW Palay Rubbervine Cryptostegia grandiflora FACU New Sedge Carex nova FACW Northwestern Twayblade Neottia banksiana FACU Pale Beardtongue Penstemon pallidus FACU New York Ironweed Vernonia noveboracensis FAC Norway Maple Acer platanoides UPL Pale Bulrush Scirpus pallidus OBL Night Flowering-Jassamine Cestrum nocturnum UPL Norwegian Cinquefoil Potentilla norvegica FAC Pale Dock Rumex altissimus FAC Nightcaps Anemone quinquefolia FAC Noyau-Vine Merremia dissecta FAC Pale Dogwood Cornus obliqua FACW Nimblewill Muhlenbergia schreberi FACU Nutmeg Hickory Carya myristiciformis FACW Pale Duckweed Lemna valdiviana OBL Nipple-Bract Arrowhead Sagittaria papillosa OBL Nuttall's Alkali Grass Puccinellia nuttalliana OBL Pale False Manna Grass Torreyochloa pallida OBL Nits-and-Lice Hypericum drummondii FACU Nuttall's Perennial Gily-Flower Leptosiphon nuttallii FAC Pale Goat-Chicory Agoseris glauca FACU Nodding Beak Sedge Rhynchospora inexpansa FACW Nuttall's Poverty-Weed Monolepis nuttalliana FAC Pale Great Club-Rush Schoenoplectus heterochaetus OBL Nodding Beardtongue Penstemon laxiflorus FAC Nuttall's Rayless-Goldenrod Bigelowia nuttallii FACU Pale Lobelia Lobelia appendiculata FAC Nodding Blue Grass Poa reflexa OBL Nuttall's Sunflower Helianthus nuttallii FACW Pale Touch-Me-Not Impatiens pallida FACW Nodding Burr-Marigold Bidens cernua OBL Nuttall's Thistle Cirsium nuttallii FAC Pale-Green Orchid Platanthera flava FACW Nodding Dwarf-Sunflower Helianthella quinquenervis FACW Nuttall's Water-Starwort Callitriche pedunculosa FACW Pale-Leaf Woodland Sunflower Helianthus strumosus FACU Nodding Fescue Festuca subverticillata FACU Oak-Leaf Goosefoot Chenopodium glaucum FAC Pale-Seed Plantain Plantago virginica FACU Nodding Mouse-Ear Chickweed Oakwoods Pony's-Foot Dichondra recurvata FAC Pale-Spike Lobelia Lobelia spicata FAC Cerastium nutans FAC Oat Avena sativa FACU Pale-Yellow Indian-Paintbrush Castilleja occidentalis FAC Nodding Onion Allium cernuum UPL Obedient-Plant Physostegia virginiana FACW Pale-Yellow Iris Iris pseudacorus OBL Nodding Plumeless-Thistle Carduus nutans FACU Ocean-Blue Morning-Glory Ipomoea indica FAC Pale-Yellow Touch-Me-Not Impatiens aurella FACW Nodding Saxifrage Saxifraga cernua FACU October Ladies'-Tresses Spiranthes ovalis FAC Palmer's Pseudosaxifrage Micranthes palmeri FAC Nodding Trillium Trillium flexipes FACU Ohio Buckeye Aesculus glabra FAC Pan-American Balsamscale Elionurus tripsacoides FACU Nodding Wild Rye Elymus canadensis FACU Oklahoma Blackberry Rubus oklahomus FAC Pangola Grass Digitaria eriantha FACU Nootka Rose Rosa nutkana FACU Oklahoma Sedge Carex oklahomensis FACW Panic Liverseed Grass Urochloa panicoides FACU Northeastern Moonwort Botrychium pinnatum UPL Oldfield Blackberry Rubus alumnus FAC Panicled Indigo-Bush Amorpha paniculata FACW Northeastern Sedge Carex cryptolepis OBL Oldfield Cinquefoil Potentilla simplex UPL Panicled-Leaf Tick-Trefoil Desmodium paniculatum UPL Northern Adder's-Tongue Ophioglossum pusillum FACW Old-Man-in-the-Spring Senecio vulgaris FACU Paper Birch Betula papyrifera FACU Northern Bedstraw Galium boreale FACU Old-Man's-Whiskers Geum triflorum FACU Paper-Mulberry Broussonetia papyrifera UPL Northern Bent Agrostis mertensii FACU One-Flower Bedstraw Galium uniflorum FACU Para Liverseed Grass Urochloa mutica FACW Northern Black Currant Ribes hudsonianum OBL One-Flower False Fiddleleaf Hydrolea uniflora OBL Parasol White-Top Doellingeria umbellata OBL Northern Blackberry Rubus arcticus FACW One-Flower Indian-Pipe Monotropa uniflora UPL Parish's Flat Sedge Cyperus parishii FACW Northern Blue Grass Poa abbreviata FAC One-Row Watercress Nasturtium microphyllum OBL Parish's Spike-Rush Eleocharis parishii FACW Northern Blue-Eyed-Grass Sisyrinchium septentrionale FAC One-Seed Burr-Cucumber Sicyos angulatus FACW Parish's Yampah Perideridia parishii FAC Northern Bluethread Burmannia biflora OBL Ontario American-Aster Symphyotrichum ontarionis FAC Park Milk-Vetch Astragalus leptaleus OBL Northern Bog Bedstraw Galium labradoricum OBL Open-Field Sedge Carex conoidea FAC Park Willow Salix monticola OBL Northern Bog Sedge Carex gynocrates OBL Open-Flower Rosette Grass Dichanthelium laxiflorum FAC Parrot's-Feather Myriophyllum aquaticum OBL Northern Bog Starwort Stellaria calycantha FACW Opposite-Leaf Spotflower Acmella repens FACW Parry's Bellflower Campanula parryi FAC Northern Bog Violet Viola nephrophylla FACW Orange Coneflower Rudbeckia fulgida FAC Parry's Clover Trifolium parryi FAC Northern Bracken Fern Pteridium aquilinum FACU Orange Day-Lily Hemerocallis fulva FACU Parry's Gentian Gentiana parryi FACW Northern Buttercup Ranunculus arcticus OBL Orange-Grass Hypericum gentianoides FACU Parry's Locoweed Oxytropis parryi FACU Northern Catalpa Catalpa speciosa FACU Orchard Grass Dactylis glomerata FACU Parry's Lousewort Pedicularis parryi FAC Northern Evening-Primrose Oenothera parviflora FACU Oregon Boxleaf Paxistima myrsinites FACU Parry's Sedge Carex parryana FACW Northern Frogfruit Phyla lanceolata FACW Oregon Willowherb Epilobium oregonense FACW Parry's Thistle Cirsium parryi FACW Northern Green Rush Juncus alpinoarticulatus OBL Oriental False Hawk's-Beard Youngia japonica FACU Parsley Hawthorn Crataegus marshallii FACW Northern Holly Fern Polystichum lonchitis FACU Osage-Orange Maclura pomifera FACU Partridge-Berry Mitchella repens FAC Northern Lady Fern Athyrium angustum FAC Osceola's-Plume Stenanthium densum FACW Partridge-Pea Chamaecrista nictitans FACU Northern Maidenhair Adiantum pedatum FAC Ostrich Fern Matteuccia struthiopteris FACW Payson's Sedge Carex paysonis FACU Northern Meadow Sedge Carex praticola FAC Oswego-Tea Monarda fistulosa UPL Peach-Leaf Willow Salix amygdaloides FACW Northern Mountain-Ash Sorbus decora FAC Oval-Leaf Sedge Carex cephalophora FACU Peak Pseudosaxifrage Micranthes nidifica FAC Northern Mountain-Cranberry Vaccinium vitis-idaea FAC Ovate False Fiddleleaf Hydrolea ovata OBL Pearl Yarrow Achillea ptarmica FACU Northern Oak Fern Gymnocarpium dryopteris FACU Ovate Marsh Fern Thelypteris ovata FACW Pearl-Millet Cenchrus americanus FACU Northern Red Oak Quercus rubra FACU Overcup Oak Quercus lyrata OBL Pearly-Everlasting Anaphalis margaritacea FACU Northern Rosette Grass Dichanthelium boreale FACU Owl's-Claws Hymenoxys hoopesii FAC Peatree Sesbania herbacea FACW Northern Slender Ladies'-Tresses Owyhee Mudwort Limosella acaulis OBL Pecan Carya illinoinensis FAC Spiranthes lacera FAC Ox-Eye Daisy Leucanthemum vulgare UPL Peel-Bark St. John's-Wort Hypericum fasciculatum FACW Northern Spicebush Lindera benzoin FACW Ozark Sedge Carex ozarkana OBL Pendant-Pod Locoweed Oxytropis deflexa FACU Pennsylvania Blackberry Rubus pensilvanicus FAC Poison-Bean Sesbania drummondii FACW Purple Amaranth Amaranthus blitum FACU Pennsylvania Buttercup Ranunculus pensylvanicus FACW Poison-Hemlock Conium maculatum FACW Purple Avens Geum rivale FACW Pennsylvania Cinquefoil Potentilla pensylvanica FACU Poke Milkweed Asclepias exaltata FAC Purple Bush-Bean Macroptilium atropurpureum FACU Pennsylvania Everlasting Gamochaeta pensylvanica UPL Pond Flat Sedge Cyperus ochraceus FACW Purple Cluster Crane's-Bill Geranium caespitosum FAC Pennsylvania Pellitory Parietaria pensylvanica FAC Pond Water-Starwort Callitriche stagnalis OBL Purple False Foxglove Agalinis purpurea FACW Peppervine Ampelopsis arborea FAC Ponderosa Muhly Muhlenbergia ramulosa FACU Purple Five-Leaf Orchid Isotria verticillata FAC Perennial Fringed-Gentian Gentianopsis barbellata FAC Ponderosa Pine Pinus ponderosa UPL Purple Flat Sedge Cyperus rotundus FAC Perennial Quaking Grass Briza media FAC Poorjoe Diodia teres FACU Purple Foxglove Digitalis purpurea UPL Perennial Ragweed Ambrosia psilostachya FACU Poorland Flat Sedge Cyperus compressus FACW Purple Loosestrife Lythrum salicaria OBL Perennial Rye Grass Lolium perenne FACU Poorman's-Pepperwort Lepidium virginicum FACU Purple Love Grass Eragrostis pectinacea FAC Persistent-Sepal Yellowcress Rorippa calycina OBL Porcupine Sedge Carex hystericina OBL Purple Marshlocks Comarum palustre OBL Peruvian Crown Grass Paspalum racemosum FAC Port Orford-Cedar Chamaecyparis lawsoniana FACU Purple Meadow-Rue Thalictrum dasycarpum FAC Peruvian Peppertree FACU Porter's Wild Lovage Ligusticum porteri FAC Purple Milkweed Asclepias purpurascens FACU Peruvian Primrose-Willow Ludwigia peruviana OBL Possumhaw Viburnum nudum FACW Purple Milkwort Polygala sanguinea FACW Petiteplant Lepuropetalon spathulatum FACW Post Oak Quercus stellata FACU Purple Mountain Saxifrage Saxifraga oppositifolia FAC Petticoat-Climber Eragrostis spectabilis UPL Potato Dwarf-Dandelion Krigia dandelion FACU Purple Pitcherplant Sarracenia purpurea OBL Philadelphia Fleabane Erigeron philadelphicus FAC Potato-Tree Solanum erianthum FAC Purple Rattlesnake-Root Nabalus racemosus FACU Philadelphia Panic Grass Panicum philadelphicum FAC Powderpuff Mimosa strigillosa FAC Purple River-Hemp Sesbania punicea FACW Pickerelweed Pontederia cordata OBL Powdery Alligator-Flag Thalia dealbata OBL Purple Silkyscale Anthenantia rufa FACU Pickering's Dawnflower Stylisma pickeringii FAC Prairie Blue Grass Poa arida FAC Purple Spike-Rush Eleocharis atropurpurea FACW Piedmont Quillwort Isoetes piedmontana OBL Prairie Bundle-Flower Desmanthus illinoensis FACU Purple Sweet-Cicely Osmorhiza purpurea FAC Piedmont Staggerbush Lyonia mariana FAC Prairie Buttercup Ranunculus platensis FAC Purple Willow Salix purpurea OBL Pignut Hickory Carya glabra FACU Prairie Cup Grass Eriochloa contracta FAC Purple-Flower Lousewort Pedicularis crenulata FACW Pill-Pod Sandmat Euphorbia hirta UPL Prairie Dogshade Limnosciadium pumilum FACW Purple-Head Sneezeweed Helenium flexuosum FACW Pimpernel Willowherb Epilobium anagallidifolium FAC Prairie Dropseed Sporobolus heterolepis UPL Purple-Leaf Willowherb Epilobium coloratum OBL Pin Oak Quercus palustris FAC Prairie False Foxglove Agalinis heterophylla FAC Purple-Rocket Iodanthus pinnatifidus FACW Pincushion Beardtongue Penstemon procerus UPL Prairie Fleabane Erigeron strigosus FACU Purple-Stem American-Aster Symphyotrichum puniceum OBL Pineapple-Weed Matricaria discoidea FACU Prairie Golden-Banner Thermopsis rhombifolia UPL Purple-Stem Monkey-Flower Mimulus floribundus OBL Pine-Barren Featherbells Stenanthium leimanthoides FACW Prairie Groundsel Packera plattensis FACU Purple-Top Vervain Verbena bonariensis FACW Pine-Barren Flat Sedge Cyperus retrorsus FAC Prairie Ironweed Vernonia fasciculata FAC Pussy Willow Salix discolor FACW Pine-Barren Fluff Grass Tridens ambiguus FAC Prairie Milkweed Asclepias sullivantii FAC Pygmy Bluet Houstonia wrightii FACU Pineland Beak Sedge Rhynchospora perplexa OBL Prairie Panic Grass Panicum brachyanthum FACU Pygmy-Flower Rock-Jasmine Androsace septentrionalis FACU Pineland Sword Fern Polystichum munitum FACU Prairie Plantain Plantago elongata FACW Pygmy-Flower Vetch Vicia minutiflora UPL Pinewoods Clover Trifolium pinetorum FACW Prairie Rose Rosa arkansana FACU Pyramid-Flower Melochia pyramidata FAC Pinewoods Finger Grass Eustachys petraea FACU Prairie Sedge Carex prairea OBL Pyrenean Sedge Carex micropoda FACU Pinewoods Rose-Gentian Sabatia gentianoides FACW Prairie Spiderwort Tradescantia occidentalis UPL Quaker Bittercress Cardamine pensylvanica FACW Pink Alumroot Heuchera rubescens FACU Prairie Straw Sedge Carex suberecta OBL Quaker-Ladies Houstonia caerulea FACU Pink Fuzzy-Bean Strophostyles umbellata FACU Prairie Wedgescale Sphenopholis obtusata FAC Quaking Aspen Populus tremuloides FAC Pink Knotweed Persicaria bicornis FACW Prairie White Fringed Orchid Platanthera leucophaea OBL Quarterman's Hedge-Hyssop Gratiola quartermaniae FAC Pink Lady's-Slipper Cypripedium acaule FACW Prairie Willow Salix humilis FACU Queen Anne's-Lace Daucus carota UPL Pink Mountain-Heath Phyllodoce empetriformis FACU Prairie Wood-Aster Eurybia hemispherica FAC Queendevil Hieracium gronovii FACU Pink Redstem Ammannia latifolia OBL Prairiedawn Hymenoxys texana FACW Queen-of-the-Meadow Filipendula ulmaria FAC Pink Slender-Thoroughwort Fleischmannia incarnata FAC Presl's Sedge Carex preslii FACU Queen's-Crown Rhodiola rhodantha FAC Pink Sundew Drosera capillaris OBL Prickley Tree-Club-Moss Dendrolycopodium dendroideum Queen's-Jewels Antigonon leptopus FAC Pink Wintergreen Pyrola asarifolia FACU FAC Quill Sedge Carex tenera FACW Pinked Mistflower Conoclinium dissectum FACW Prickly Bog Sedge Carex atlantica OBL Quinineweed Zeltnera beyrichii FACU Pinkqueen Tarenaya hassleriana FAC Prickly Fanpetals Sida spinosa UPL Racemed Milkwort Polygala polygama FACU Pinkweed Persicaria pensylvanica FACW Prickly Lettuce Lactuca serriola FAC Rambler Rose Rosa multiflora UPL Pitcher's Stitchwort Minuartia patula FAC Prickly Rose Rosa acicularis FACU Ram-Head Lady's-Slipper Cypripedium arietinum FACW Pitchfork Crown Grass Paspalum bifidum FAC Prickly Russian-Thistle Salsola tragus FACU Ramp Allium tricoccum FACU Plains Flat Sedge Cyperus onerosus FACW Pride-of-Ohio Dodecatheon meadia FAC Ram's-Horn Proboscidea louisiana FACU Plains Ironweed Vernonia marginata FAC Primroseleaf Violet Viola primulifolia FAC Ranenna Grass Saccharum ravennae UPL Planertree Planera aquatica OBL Princess-Pine Dendrolycopodium obscurum FACU Rannoch-Rush Scheuchzeria palustris OBL Plantain Goldenweed Pyrrocoma uniflora FAC Princesstree Paulownia tomentosa UPL Rape Brassica rapa UPL Plantain Liverseed Grass Urochloa plantaginea FACU Procession-Flower Polygala incarnata FAC Rat-Tail Six-Weeks Grass Vulpia myuros FAC Plateau Spiderwort Tradescantia edwardsiana FAC Proliferous Marsh-Pennywort Hydrocotyle prolifera OBL Rattlesnake Brome Bromus briziformis UPL Platte River Cinquefoil Potentilla plattensis FACW Propeller-Flower Alophia drummondii FACU Rattlesnake Fern Botrypus virginianus FACU Playa Beeplant Peritoma multicaulis FACW Prostrate Blue Violet Viola walteri UPL Rattlesnake Manna Grass Glyceria canadensis OBL Pleated Gentian Gentiana affinis FACU Prostrate Milkweed Asclepias prostrata FAC Rattleweed Crotalaria retusa UPL Plowman's-Wort Pluchea camphorata FACW Prostrate Sandmat Euphorbia prostrata UPL Ravenel's Rosette Grass Dichanthelium ravenelii FAC Plumed Beak Sedge Rhynchospora plumosa FACW Prune-Fruit Sedge Carex corrugata FACW Raven-Foot Sedge Carex crus-corvi OBL Pointed Broom Sedge Carex scoparia FACW Puffballs Marshallia caespitosa FAC Rayless Alpine Groundsel Packera pauciflora FAC Poiret's Copperleaf Acalypha poiretii FACU Pull-and-Be-Damned Paspalum denticulatum OBL Rayless Mountain Groundsel Packera indecora FACW Poison Suckleya Suckleya suckleyana FACW Pullup Muhly Muhlenbergia filiformis FACW Raynolds' Sedge Carex raynoldsii FACU Red Baneberry Actaea rubra FACU Rio Grande Copper-Lily Habranthus tubispathus FACW Rough Rosette Grass Dichanthelium leucothrix FACW Red Bay Persea borbonia FACW Rio Grande Shinner's Aster Shinnersia rivularis OBL Rough Water-Horehound Lycopus asper OBL Red Bearberry Arctostaphylos uva-ursi UPL Rio Grande Spike-Rush Eleocharis ravenelii OBL Rough White Prairie American-Aster Red Bladder-Vetch Sphaerophysa salsula FACU Rio Grande Vervain Verbena runyonii FACW Symphyotrichum falcatum FACU Red Buckeye Aesculus pavia FAC River Birch Betula nigra FACW Rough-Fruit Amaranth Amaranthus tuberculatus FAC Red Chokeberry Aronia arbutifolia FACW River Broom-Rape Orobanche riparia FACW Rough-Fruit Fairybells Prosartes trachycarpa UPL Red Clover Trifolium pratense FACU River Club-Rush Schoenoplectus fluviatilis OBL Rough-Fruit Scaleseed Spermolepis divaricata FACW Red Columbine Aquilegia canadensis FAC River Hawthorn Crataegus rivularis FACW Rough-Hair Rosette Grass Dichanthelium strigosum FACW Red Elder Sambucus racemosa FACU River-Bank Grape Vitis riparia FAC Rough-Hairy Waterfall Fern Christella hispidula FAC Red Fescue Festuca rubra FAC River-Bank Wild Rye Elymus riparius FAC Rough-Leaf Dogwood Cornus drummondii FAC Red Goosefoot Chenopodium rubrum OBL River-Flat Hawthorn Crataegus opaca OBL Rough-Stalk Blue Grass Poa trivialis FACW Red Hickory Carya ovalis FACU River-Swamp Nut-Rush Scleria distans OBL Round-Fruit Hedge-Hyssop Gratiola virginiana OBL Red Love Grass Eragrostis secundiflora FACU Robbins' Milk-Vetch Astragalus robbinsii FAC Round-Fruit Rush Juncus compressus FACW Red Mangrove Rhizophora mangle OBL Robin's-Plantain Erigeron pulchellus FACU Round-Fruit Yellowcress Rorippa sphaerocarpa OBL Red Maple Acer rubrum FAC Robyns' American-Aster Symphyotrichum robynsianum FACW Round-Head Bush-Clover Lespedeza capitata UPL Red Milkweed Asclepias rubra OBL Rock Buttercup Ranunculus micranthus FACU Round-Head Rush Juncus validus FACW Red Mulberry Morus rubra FACU Rock Elm Ulmus thomasii FACU Round-Leaf Goldenrod Solidago patula OBL Red Osier Cornus alba FACW Rock Grape Vitis rupestris FACU Round-Leaf Groundsel Packera obovata FACU Red Pine Pinus resinosa FACU Rock Quillwort Isoetes lithophila OBL Round-Leaf Monkey-Flower Mimulus glabratus OBL Red Saltwort Salicornia rubra OBL Rocky Mountain Beeplant Peritoma serrulata FACU Round-Leaf Sundew Drosera rotundifolia OBL Red Three-Awn Aristida longespica FACU Rocky Mountain Buttercup Ranunculus macauleyi FACW Round-Leaf Thimbleweed Anemone canadensis FACW Red Turtlehead Chelone obliqua OBL Rocky Mountain Checkerbloom Sidalcea neomexicana FACW Round-Leaf Thoroughwort Eupatorium rotundifolium FAC Red-Berry Nightshade Solanum campechiense FACU Rocky Mountain Cinquefoil Potentilla rubricaulis FACU Round-Pod St. John's-Wort Hypericum cistifolium FACW Redbud Cercis canadensis UPL Rocky Mountain Club-Rush Schoenoplectus saximontanus OBL Round-Seed Rosette Grass Dichanthelium sphaerocarpon FACU Red-Center Morning-Glory Ipomoea amnicola FACW Rocky Mountain Fringed-Gentian Round-Seed St. John's-Wort Hypericum sphaerocarpum FACU Reddish Pondweed Potamogeton alpinus OBL Gentianopsis thermalis OBL Royal Fern Osmunda spectabilis OBL Red-Head Pondweed Potamogeton richardsonii OBL Rocky Mountain Goldenrod Solidago multiradiata FACU Royal Flat Sedge Cyperus elegans FACW Red-Pod Rush Juncus trigonocarpus OBL Rocky Mountain Groundsel Packera streptanthifolia UPL Ruby Sandspurry Spergularia rubra FACU Red-Ring Milkweed Asclepias variegata FACU Rocky Mountain Hemlock-Parsley Rue-Anemone Thalictrum thalictroides FAC Red-Root Amaranthus retroflexus FACU Conioselinum scopulorum FACW Ruffled Starwort Stellaria crispa FACW Red-Root Flat Sedge Cyperus erythrorhizos OBL Rocky Mountain Honeysuckle Lonicera utahensis FACU Rufous Bulrush Scirpus pendulus OBL Red-Seed Plantain Plantago rhodosperma FACU Rocky Mountain Iris Iris missouriensis FACW Running Service-Berry Amelanchier spicata FACU Redstar Ipomoea coccinea FAC Rocky Mountain Larkspur Delphinium scopulorum FAC Rusby's Primrose Primula rusbyi FAC Red-Stem Pseudosaxifrage Micranthes lyallii OBL Rocky Mountain Lousewort Pedicularis scopulorum FACW Rush Hair Sedge Bulbostylis juncoides FACW Red-Stem Waterwort Elatine rubella OBL Rocky Mountain Maple Acer glabrum FAC Russet Buffalo-Berry Shepherdia canadensis FACU Red-Tinge Bulrush Scirpus microcarpus OBL Rocky Mountain Pincushion-Plant Russet Sedge Carex saxatilis OBL Red-Top Cut-Throat Grass Coleataenia rigidula FACW Navarretia saximontana FACW Russet-Bristle Cotton-Grass Eriophorum russeolum OBL Red-Whisker Clammyweed Polanisia dodecandra FACU Rocky Mountain Rush Juncus saximontanus FACW Russet-Hair Pseudosaxifrage Micranthes ferruginea OBL Red-Woolly Plantain Plantago eriopoda FAC Rocky Mountain Snowlover Chionophila jamesii FACU Russian Blue Lettuce Lactuca tatarica UPL Reed Canary Grass Phalaris arundinacea FACW Rocky Mountain Starwort Stellaria obtusa FACW Russian-Olive Elaeagnus angustifolia FACU Reflexed Sedge Carex retroflexa FACU Rocky Mountain Willowherb Epilobium saximontanum FACW Russian-Thistle Salsola kali FACU Refugio Zephyr-Lily Zephyranthes refugiensis FACW Roemer's Indigo-Bush Amorpha roemeriana FACU Russian-Wild Rye Psathyrostachys juncea FACU Resin Birch Betula glandulosa OBL Roemer's Rush Juncus roemerianus OBL Rusty Blackhaw Viburnum rufidulum FACU Resurrection Fern Pleopeltis polypodioides FACU Rolland's Leafless-Bulrush Trichophorum pumilum OBL Rusty Flat Sedge Cyperus odoratus FACW Retrorse Sedge Carex retrorsa OBL Roosevelt-Weed Baccharis neglecta FAC Rusty Labrador-Tea Rhododendron groenlandicum FACW Reverchon's Spike-Rush Eleocharis reverchonii OBL Rooted Spike-Rush Eleocharis radicans OBL Rusty Sedge Carex subfusca FACU Reversed Clover Trifolium resupinatum FACU Rope-Root Sedge Carex chordorrhiza OBL Saber Bogmat Wolffiella oblonga OBL Rhodes Grass Chloris gayana FACU Rose Evening-Primrose Oenothera rosea FACW Sacatrapo Caperonia palustris FACW Ribbed Mock Bishopweed Ptilimnium costatum OBL Rose-Moss Portulaca grandiflora UPL Sacramento Mountain Thistle Cirsium vinaceum OBL Ribbon-Leaf Pondweed Potamogeton epihydrus OBL Rose-Pink Sabatia angularis FAC Sacred Lotus Nelumbo nucifera OBL Rice Button American-Aster Symphyotrichum dumosum FAC Rosinbush Baccharis sarothroides FAC Sacred Thorn-Apple Datura wrightii UPL Rice Cut Grass Leersia oryzoides OBL Ross' Avens Geum rossii FACU Saffron Groundsel Packera crocata FAC Ricefield Flat Sedge Cyperus iria FACW Rosy Camphorweed Pluchea baccharis FACW Saffron-Plum Sideroxylon celastrinum FAC Richard's Yellow-Eyed-Grass Xyris jupicai OBL Rosy Indian-Paintbrush Castilleja rhexiifolia FAC Sage Willow Salix candida OBL Richardson's Alumroot Heuchera richardsonii FACU Rosy Sedge Carex rosea FACU Sagebrush Buttercup Ranunculus glaberrimus FAC Richardson's Brome Bromus richardsonii FACU Rougeplant Rivina humilis FAC Sago False Pondweed Stuckenia pectinata OBL Richardson's Rice Grass Achnatherum richardsonii FACU Rough Avens Geum laciniatum FACW Saline Saltbush Atriplex dioica FAC Richardson's Sedge Carex richardsonii FAC Rough Barnyard Grass Echinochloa muricata FACW Saltmarsh Club-Rush Schoenoplectus maritimus OBL Riddell's Goldenrod Solidago riddellii OBL Rough Bedstraw Galium asprellum OBL Saltmarsh False Foxglove Agalinis maritima OBL Ridged Yellow Flax Linum striatum FACW Rough Bent Agrostis scabra FAC Saltmarsh Rush Juncus gerardii OBL Rigid Sedge Carex tetanica FACW Rough Bristle Grass Setaria verticillata FAC Saltmarsh Sandspurry Spergularia marina OBL Rillita Pellitory Parietaria hespera FACU Rough Cockleburr Xanthium strumarium FAC Saltmarsh Umbrella Sedge Fuirena breviseta OBL Rimrock Ladies'-Braids Funkiella confusa FAC Rough Flat Sedge Cyperus retrofractus UPL Salt-Meadow Cord Grass Spartina patens FACW Ring-Seed Rush Juncus filipendulus FAC Rough Forget-Me-Not Myosotis arvensis FAC Saltwater Cord Grass Spartina alterniflora OBL Samiland-Gentian Comastoma tenellum FAC Setose Blackberry Rubus setosus FACW Showy Tick-Trefoil Desmodium canadense FAC Sampson's-Snakeroot Orbexilum pedunculatum FACU Seven-Angle Pipewort Eriocaulon aquaticum OBL Showy Whitetop Rhynchospora nivea FACW Sand Bittercress Cardamine parviflora FACW Several-Vein Sweetflag Acorus americanus OBL Showy Whitlow-Grass Draba spectabilis FACU Sand Dropseed Sporobolus cryptandrus FACU Shade Mudflower Micranthemum umbrosum OBL Showy Zephyr-Lily Zephyranthes pulchella FACW Sand Flat Sedge Cyperus schweinitzii FACU Shag-Bark Hickory Carya ovata FACU Shrubby Seepweed Suaeda nigra OBL Sand Plantain Plantago arenaria FACU Shaggy False Hedge-Nettle Sophronanthe pilosa FACW Shrubby St. John's-Wort Hypericum prolificum FACU Sand Pygmyweed Crassula connata OBL Shaggy-Soldier Galinsoga quadriradiata FACU Shrubby Willowherb Epilobium suffruticosum FACU Sand Rose-Gentian Sabatia arenicola FACW Shakeshake Crotalaria incana FACU Shrubby-Fivefingers Sibbaldia tridentata FACU Sand Spike-Rush Eleocharis montevidensis FACW Shallow Sedge Carex lurida OBL Shumard's Oak Quercus shumardii FAC Sandbar Love Grass Eragrostis frankii FACW Sharp Dock Rumex conglomeratus FACW Siberian Elm Ulmus pumila UPL Sandbar Willow Salix interior FACW Sharp Gayfeather Liatris acidota FAC Siberian Water-Milfoil Myriophyllum sibiricum OBL Sandhill Amaranth Amaranthus arenicola FACU Sharp-Leaf Buttercup Ranunculus acriformis FACW Siberian Wood-Aster Eurybia sibirica FAC Sandpaper Vervain Verbena scabra OBL Sharp-Leaf Cancerwort Kickxia elatine FACU Sidebells Orthilia secunda FACU Sand-Swamp Whitetop Rhynchospora latifolia OBL Sharp-Scale Club-Rush Schoenoplectus erectus OBL Side-Flower Bishop's-Cap Mitella stauropetala FAC Sanguinaria Alternanthera ficoidea FACU Sharp-Scale Flat Sedge Cyperus oxylepis FACW Sierran Bittercress Cardamine breweri FACW Santa Catalina Mountain-Pink Zeltnera nudicaulis FACW Sharp-Scale Sedge Carex oxylepis OBL Sierran Fumewort Corydalis caseana FACW Santa Maria Feverfew Parthenium hysterophorus FAC Sharp-Wing Monkey-Flower Mimulus alatus OBL Sierran Hare Sedge Carex leporinella FACW Sapello Canyon Larkspur Delphinium sapellonis FAC Shawnee-Salad Hydrophyllum virginianum FAC Sierran Rush Juncus nevadensis FACW Sarsparilla-Vine Smilax pumila FAC Sheathed False Pondweed Stuckenia vaginata OBL Silk-Cotton Purslane Portulaca halimoides FACW Sartwell's Sedge Carex sartwellii FACW Sheathed Flat Sedge Cyperus haspan OBL Silver Buffalo-Berry Shepherdia argentea UPL Saskatoon Service-Berry Amelanchier alnifolia FACU Sheathed Sedge Carex vaginata OBL Silver Cock's-Comb Celosia argentea UPL Sassafras Sassafras albidum FACU Shell-Bark Hickory Carya laciniosa FAC Silver Dwarf-Morning-Glory Evolvulus sericeus UPL Satin-Flower Spergularia media FACU Shepherd's-Purse Capsella bursa-pastoris FACU Silver Maple Acer saccharinum FAC Satiny Willow Salix pellita FACW Shingle Oak Quercus imbricaria FAC Silver Plume Grass Saccharum alopecuroides FACW Savannah-Panic Grass Phanopyrum gymnocarpon OBL Shining Bedstraw Galium concinnum FACU Silver-Leaf Cinquefoil Potentilla argentea FACU Sawatch Knotweed Polygonum sawatchense FACU Shining Fir-Moss Huperzia lucidula FACW Silver-Leaf Milk-Vetch Astragalus argophyllus FACW Sawbrier Smilax glauca UPL Shining Flat Sedge Cyperus bipartitus FACW Silverscale Atriplex argentea FAC Saw-Tooth Blackberry Rubus argutus FAC Shining Ladies'-Tresses Spiranthes lucida FACW Silver-Sheath Knotweed Polygonum argyrocoleon OBL Saw-Tooth Sunflower Helianthus grosseserratus FACW Shining Leopardbane Arnica fulgens UPL Silverweed Potentilla anserina FACW Scallion-Grass Eleocharis mutata OBL Shining Pepperwort Lepidium nitidum FAC Silvery Primrose Primula incana FACW Scarlet Cinquefoil Potentilla thurberi FACW Shining Willow Salix lucida FACW Simpler's-Joy Verbena hastata FACW Scarlet Indian-Paintbrush Castilleja coccinea FACU Shinleaf Pyrola elliptica UPL Single-Delight Moneses uniflora FAC Scarlet Yellow-Loosestrife Lysimachia arvensis FACU Shiny Wedgescale Sphenopholis nitida UPL Single-Stem Leather-Root Orbexilum simplex FAC Scarlet-Fruit Passion-Flower FAC Shiny-Leaf Meadowsweet Spiraea betulifolia FACU Singletary Vetchling Lathyrus hirsutus FAC Scentbottle Piperia dilatata FACW Shoalweed Halodule wrightii OBL Single-Vein Sweetflag Acorus calamus OBL Scorpion Tick-Trefoil Desmodium scorpiurus FACU Shore Grass Distichlis littoralis OBL Sitka Alder Alnus viridis FAC Scorpion's-Tail Heliotropium angiospermum UPL Shoreline Sea-Purslane Sesuvium portulacastrum FACW Sitka Mistmaiden Romanzoffia sitchensis FACW Scotland Orache Atriplex glabriuscula FACU Shoreline Sedge Carex hyalinolepis OBL Sitka Mountain-Ash Sorbus sitchensis FAC Scouler's Willow Salix scouleriana FACU Short-Awn Meadow-Foxtail Alopecurus aequalis OBL Sitka Willow Salix sitchensis FACW Sea Vetchling Lathyrus japonicus FACU Short-Beak Arrowhead Sagittaria brevirostra OBL Six-Angle Foldwing Dicliptera sexangularis FAC Seacoast Marsh-Elder Iva imbricata FACW Short-Beak Beak Sedge Rhynchospora nitens OBL Six-Weeks Love Grass Eragrostis lutescens FACU Sea-Milkwort Lysimachia maritima OBL Short-Beak Sedge Carex brevior FAC Skinner's False Foxglove Agalinis skinneriana FACU Sea-Oats Uniola paniculata FACU Short-Beak Water-Crowfoot Ranunculus subrigidus OBL Skunk Currant Ribes glandulosum OBL Seashore Crown Grass Paspalum vaginatum FACW Short-Beard Plume Grass Saccharum brevibarbe FACW Skunk-Cabbage Symplocarpus foetidus OBL Seashore Dropseed Sporobolus virginicus FACW Short-Bristle Horned Beak Sedge Slash Pine Pinus elliottii FAC Seaside Alder Alnus maritima OBL Rhynchospora corniculata OBL Sleepingplant Chamaecrista fasciculata FACU Seaside American-Aster Symphyotrichum subulatum OBL Short-Flower Monkey-Flower Mimulus breviflorus FACW Sleepydick Ornithogalum umbellatum FACU Seaside Arrow-Grass Triglochin maritima OBL Short-Leaf Fringed Orchid Platanthera brevifolia FACU Slender Amaranth Amaranthus viridis FAC Seaside Barley Hordeum marinum FACU Short-Leaf Hair Grass Deschampsia brevifolia FACW Slender Beak Sedge Rhynchospora gracilenta OBL Seaside Club-Rush Schoenoplectus robustus OBL Short-Leaf Rush Juncus brachyphyllus FAC Slender Bog Orchid Platanthera stricta FACW Seaside Goldenrod Solidago sempervirens FACW Short-Leaf Sedge Carex fuliginosa FACW Slender Centaury Centaurium tenuiflorum FACW Seaside Heliotrope Heliotropium curassavicum OBL Short-Leaf Spike Sedge Kyllinga brevifolia FACW Slender Cotton-Grass Eriophorum gracile OBL Seaside-Petunia Calibrachoa parviflora FACW Short-Ray Fleabane Erigeron lonchophyllus FACW Slender Crown Grass Paspalum setaceum FAC Seedbox Ludwigia alternifolia OBL Short's Rockcress Boechera dentata UPL Slender Cudweed Gnaphalium exilifolium FAC Seep Monkey-Flower Mimulus guttatus OBL Short-Seed Waterwort Elatine brachysperma FACW Slender False Buttonweed Spermacoce tenuior FACW Seep Muhly Muhlenbergia reverchonii FAC Short-Spike Canary Grass Phalaris brachystachys FACW Slender False Dragonhead Physostegia intermedia OBL Selloa Pampus Grass Cortaderia selloana FACU Short-Stalk Mouse-Ear Chickweed Slender Fimbry Fimbristylis autumnalis OBL Seneca-Snakeroot Polygala senega FACU Cerastium brachypodum FACU Slender Hair Grass Deschampsia elongata FAC Sensitive Fern Onoclea sensibilis FACW Short-Stalk Sedge Carex podocarpa FAC Slender Meadow-Foxtail Alopecurus myosuroides FACW September Elm Ulmus serotina FACU Showy Alpine Ragwort Senecio amplectens FACW Slender Muhly Muhlenbergia sericea FACU Septicweed Senna occidentalis UPL Showy False Dragonhead Physostegia pulchella FACW Slender Plantain Plantago heterophylla FACW Serpent-Grass Bistorta vivipara FACW Showy Lady's-Slipper Cypripedium reginae FACW Slender Rose-Gentian Sabatia campanulata FACW Sessile-Fruit Arrowhead Sagittaria rigida OBL Showy Milkweed Asclepias speciosa FAC Slender Scratchdaisy Croptilon divaricatum FACU Sessile-Leaf Bellwort Uvularia sessilifolia FACU Showy Rattlebox Crotalaria spectabilis FACU Slender Sea-Purslane Sesuvium maritimum FACW Slender Spike-Rush Eleocharis tenuis FACW Smith's Club-Rush Schoenoplectus smithii OBL Southern Crab Grass Digitaria ciliaris FACU Slender Three-Seed-Mercury Acalypha gracilens FAC Smooth Arrow-Wood Viburnum recognitum FAC Southern Cut Grass Leersia hexandra OBL Slender Water-Milfoil Myriophyllum tenellum OBL Smooth Beggarticks Bidens laevis OBL Southern Dewberry Rubus trivialis FACU Slender Waternymph Najas gracillima OBL Smooth Blackhaw Viburnum prunifolium FACU Southern Fimbry Fimbristylis decipiens FAC Slender Wedgescale Sphenopholis intermedia FAC Smooth Blue American-Aster Symphyotrichum laeve FACU Southern Flat Sedge Cyperus thyrsiflorus FAC Slender Whitlow-Grass Draba albertina FAC Smooth Brome Bromus inermis UPL Southern Lady Fern Athyrium asplenioides FAC Slender Wild Rye Elymus trachycaulus FACU Smooth Crab Grass Digitaria ischaemum UPL Southern Magnolia Magnolia grandiflora FAC Slender Woodland Sedge Carex digitalis UPL Smooth False Buttonweed Spermacoce glabra FACW Southern Maidenhair Adiantum capillus-veneris FACW Slender Wood-Oats Chasmanthium laxum FAC Smooth Flat Sedge Cyperus laevigatus FAC Southern Marsh Yellowcress Rorippa teres OBL Slender Wood-Reed Cinna latifolia OBL Smooth Hawk's-Beard Crepis capillaris UPL Southern Red Oak Quercus falcata FACU Slender Yellow Wood-Sorrel Oxalis dillenii FACU Smooth Hedge-Nettle Stachys tenuifolia FACW Southern Sandburr Cenchrus echinatus UPL Slender Yellow-Eyed-Grass Xyris torta OBL Smooth Joyweed Alternanthera paronychioides OBL Southern Sedge Carex austrina FACU Slender-Beak Sedge Carex athrostachya FACW Smooth Muhly Muhlenbergia glabrifloris FAC Southern Twayblade Neottia bifolia FACW Slender-Fruit Beak Sedge Rhynchospora leptocarpa OBL Smooth Northern-Rockcress Braya glabella FACU Southern Umbrella Sedge Fuirena scirpoidea OBL Slender-Fruit Nut-Rush Scleria georgiana FACW Smooth Oxeye Heliopsis helianthoides FACU Southern Water Grass Luziola fluitans OBL Slender-Fruit Willowherb Epilobium leptocarpum FACW Smooth Phlox Phlox glaberrima FAC Southern Waxy Sedge Carex glaucescens OBL Slender-Leaf False Foxglove Agalinis tenuifolia FAC Smooth Rose Rosa blanda FACU Southern White-Top Doellingeria sericocarpoides FACW Slender-Leaf False Pondweed Stuckenia filiformis OBL Smooth Saw-Grass Cladium mariscoides OBL Southwestern Cosmos Cosmos parviflorus FAC Slender-Leaf Wild Lovage Ligusticum tenuifolium FAC Smooth Scouring-Rush Equisetum laevigatum FAC Southwestern Showy Sedge Carex bella FAC Slim-Bristle Sandburr Cenchrus brownii FACU Smooth Smartweed Persicaria glabra OBL Spanishgold Grindelia ciliata UPL Slim-Flower Muhly Muhlenbergia tenuiflora FACU Smooth White American-Aster Symphyotrichum porteri FACU Spanish-Moss Tillandsia usneoides UPL Slim-Lobe Beggarticks Bidens tenuisecta FACW Smooth White Violet Viola macloskeyi FACW Spanish-Needles Bidens bipinnata FACU Slim-Pod Rush Juncus diffusissimus FACW Smooth Willowherb Epilobium campestre FACW Sparse-Flower Sedge Carex tenuiflora OBL Slim-Stem Reed Grass Calamagrostis stricta FACW Smooth-Cone Sedge Carex laeviconica OBL Sparse-Lobe Grape Fern Sceptridium biternatum FAC Slippery Elm Ulmus rubra FACU Smooth-Seed Pygmyweed Crassula solieri FACW Spear-Bract Blue-Eyed-Grass Sisyrinchium sagittiferum FACW Small Beggarticks Bidens discoidea FACW Smooth-Stem Sedge Carex laeviculmis FACW Spear-Leaf Leopardbane Arnica longifolia FACW Small Black-Tip Ragwort Senecio lugens FACW Smooth-Twig Gray Willow Salix atrocinerea FACW Spearmint Mentha spicata FACW Small Butterwort Pinguicula pumila OBL Smut Grass Sporobolus indicus FACU Speckled Alder Alnus incana FACW Small Carp Grass Arthraxon hispidus FACU Snake-Mouth Orchid Pogonia ophioglossoides OBL Speckle-Pod Milk-Vetch Astragalus diphysus UPL Small Coastal Germander Teucrium cubense FAC Snow Pearlwort Sagina nivalis FACW Spectacle-Fruit Wislizenia refracta FACW Small Cranberry Vaccinium oxycoccos OBL Snowline Wintergreen Pyrola minor FACU Spiderwisp Gynandropsis gynandra FAC Small Dropseed Sporobolus neglectus UPL Snow-on-the-Mountain Euphorbia marginata FACU Spiked Bent Agrostis exarata FACW Small Enchanter's-Nightshade Circaea alpina FACW Snowy Catchfly Silene nivea FACW Spiked Crested-Coralroot Hexalectris spicata UPL Small Evening-Primrose Oenothera perennis FAC Snowy Orchid Platanthera nivea FACW Spiked Muhly Muhlenbergia glomerata FACW Small Floating Manna Grass Glyceria borealis OBL Soft Brome Bromus hordeaceus UPL Spiked Wood-Rush Luzula spicata FACU Small Pondweed Potamogeton pusillus OBL Soft Cinquefoil Potentilla pulcherrima FAC Spindleroot Ludwigia hirtella OBL Small Skullcap Scutellaria parvula UPL Soft Fox Sedge Carex conjuncta FAC Spineless Hornwort Ceratophyllum echinatum OBL Small Spike-Rush Eleocharis minima OBL Soft Heliotrope Heliotropium molle FACW Spinulose Wood Fern Dryopteris carthusiana FACW Small White Fawn-Lily Erythronium albidum FACU Soft-Leaf Mimosa Mimosa malacophylla FACW Spiny Amaranth Amaranthus spinosus FACU Small White Lady's-Slipper Cypripedium candidum OBL Soft-Leaf Sedge Carex disperma FACW Spiny Cockleburr Xanthium spinosum FACU Small Woodland Sunflower Helianthus microcephalus UPL Soft-Seed Wild Petunia Ruellia malacosperma FACW Spiny False Fiddleleaf Hydrolea spinosa OBL Small-Flower Baby-Blue-Eyes Nemophila aphylla FAC Soft-Stem Club-Rush Schoenoplectus tabernaemontani Spiny-Fruit Buttercup Ranunculus muricatus FACW Small-Flower Buttercup Ranunculus parviflorus FAC OBL Spiny-Leaf Sow-Thistle Sonchus asper FAC Small-Flower False Foxglove Agalinis paupercula FAC Soft-Stem Spike-Rush Eleocharis mamillata OBL Spiny-Spore Quillwort Isoetes echinospora OBL Small-Flower Goat-Chicory Agoseris parviflora UPL Soldier Rockcress Boechera lemmonii UPL Spiral Ditch-Grass Ruppia cirrhosa OBL Small-Flower Grass-of-Parnassus Soldier's Orchid Zeuxine strateumatica FAC Spiral Pondweed Potamogeton spirillus OBL Parnassia parviflora OBL Sonoran Viper Grass Dinebra viscida FACU Split-Beard Bluestem Andropogon ternarius FACU Small-Flower Halfchaff Sedge Lipocarpha micrantha FACW Sorrelvine Cissus trifoliata FACU Spoon-Leaf Purple Everlasting Gamochaeta purpurea FACU Small-Flower Pawpaw Asimina parviflora FAC Sour Crown Grass Paspalum conjugatum FAC Spoon-Leaf Sundew Drosera intermedia OBL Small-Flower Tamarisk Tamarix parviflora FACW Sour Grass Digitaria insularis FAC Spotted Beebalm Monarda punctata UPL Small-Flower Thimbleweed Anemone parviflora FACU South American Skullcap Scutellaria racemosa FACW Spotted Crane's-Bill Geranium maculatum FACU Small-Flower Thoroughwort Eupatorium semiserratum FAC Southeastern Cut-Throat Grass Coleataenia tenera FACW Spotted Evening-Primrose Oenothera canescens FAC Small-Flower Valerian Valeriana occidentalis FAC Southern Adder's-Tongue Ophioglossum vulgatum FACW Spotted Lady's-Thumb Persicaria maculosa FACW Small-Flower Wood-Rush Luzula parviflora UPL Southern Amaranth Amaranthus australis OBL Spotted Pondweed Potamogeton pulcher OBL Small-Fruit Beggarticks Bidens mitis OBL Southern Appressed Club-Moss Spotted Sandmat Euphorbia maculata FACU Small-Fruit Spike-Rush Eleocharis microcarpa OBL Lycopodiella appressa OBL Spotted St. John's-Wort Hypericum punctatum FAC Small-Head Doll's Daisy Boltonia diffusa FACW Southern Arrow-Wood Viburnum dentatum FAC Spotted Touch-Me-Not Impatiens capensis FACW Small-Head Rush Juncus brachycephalus OBL Southern Bald-Cypress Taxodium distichum OBL Spotted Trumpetweed Eutrochium maculatum OBL Small-Head Sedge Carex illota FACW Southern Bayberry Morella cerifera FAC Spotted Water-Hemlock Cicuta maculata OBL Small-Head Sneezeweed Helenium microcephalum FACW Southern Beak Sedge Rhynchospora microcarpa FACW Sprawling Liverseed Grass Urochloa reptans UPL Small-Leaf Angelica Angelica pinnata FACW Southern Bladderwort Utricularia juncea OBL Spread-Fruit Golden-Banner Thermopsis divaricarpa FAC Small-Leaf Wandering-Jew Tradescantia fluminensis FAC Southern Bluethread Burmannia capitata OBL Spreading Alkali Grass Puccinellia distans FACW Small-Spike False Nettle Boehmeria cylindrica FACW Southern Catalpa Catalpa bignonioides UPL Spreading Alkali-Weed Cressa truxillensis FACW Small-Wing Sedge Carex microptera FAC Southern Cat-Tail Typha domingensis OBL Spreading Amaranth Amaranthus crassipes FAC Spreading Beak Sedge Rhynchospora divergens OBL Straight-Leaf Pondweed Potamogeton strictifolius OBL Sweetgale Myrica gale OBL Spreading Bent Agrostis stolonifera FACW Strap-Leaf Willow Salix ligulifolia FACW Sweet-Gum Liquidambar styraciflua FAC Spreading Chervil Chaerophyllum procumbens FAC Strap-Style Gayfeather Liatris ligulistylis FAC Sweetscent Pluchea odorata FACW Spreading Dogbane Apocynum androsaemifolium UPL Strawberry-Head Clover Trifolium fragiferum FAC Sweet-Scented Joe-Pye-Weed Eutrochium purpureum FAC Spreading Goldeneggs Taraxia subacaulis FACW Strawberry-Leaf Raspberry Rubus pedatus FAC Swollen Beaked Sedge Carex rostrata OBL Spreading Muhly Muhlenbergia expansa FACW Straw-Color Flat Sedge Cyperus strigosus FACW Swollen Bladderwort Utricularia inflata OBL Spreading Sandmat Euphorbia humistrata FAC Stream Bog-Moss Mayaca fluviatilis OBL Swollen Windmill Grass Chloris barbata FACU Spreading Sandwort Arenaria lanuginosa FACU Streambank Groundsel Packera pseudaurea FACW Sword Bogmat Wolffiella gladiata OBL Spreading Sweetjuice Glinus radiatus FACW Streambank Pseudosaxifrage Micranthes odontoloma FACW Sycamore-Leaf Snowbell Styrax platanifolius FAC Spreading Yellowcress Rorippa sinuata FACW Streambank Rabbit's-Foot Grass Tadpole Alkali Buttercup Cyrtorhyncha ranunculina FAC Spring Avens Geum vernum FACU Polypogon elongatus OBL Tahitian Bridalveil Gibasis geniculata FAC Spring Blue-Eyed Mary Collinsia verna FAC Streamside Fleabane Erigeron glabellus FACW Tall Beggarticks Bidens vulgata FAC Spring Coralroot Corallorhiza wisteriana FACU Streamside Wild Rye Elymus lanceolatus FACU Tall Bluebells Mertensia paniculata FAC Spring Forget-Me-Not Myosotis verna FAC Stretchberry Forestiera pubescens FACU Tall Buttercup Ranunculus acris FACW Spring Ladies'-Tresses Spiranthes vernalis FACW Strict Blue-Eyed-Grass Sisyrinchium montanum FAC Tall Cotton-Grass Eriophorum angustifolium OBL Spring Spider-Lily Hymenocallis liriosme OBL Striped Bladderwort Utricularia striata OBL Tall False Foxglove Agalinis aspera FACU Spruce-Fir Buttercup Ranunculus eschscholtzii FACW Striped Cream Violet Viola striata FACW Tall False Rye Grass Schedonorus arundinaceus FACU Square-Stem Spike-Rush Eleocharis quadrangulata OBL Striped False Pondweed Stuckenia striata OBL Tall Flat Sedge Cyperus eragrostis FACW Square-Twig Blueberry Vaccinium membranaceum FACU Striped Knotweed Polygonum striatulum FACW Tall Fleabane Erigeron elatior FACW Squarrose Sedge Carex squarrosa FACW Striped Rose-Mallow Hibiscus striatus OBL Tall Fringe Bluebells Mertensia ciliata FACW Squashberry Viburnum edule FACW Sturdy Sedge Carex alma OBL Tall Goldenrod Solidago altissima FACU Squawthorn Lycium torreyi FAC Subalpine Larkspur Delphinium barbeyi FAC Tall Hairy Grooveburr Agrimonia gryposepala FAC St. Andrew's-Cross Hypericum hypericoides FACU Subalpine Monkey-Flower Mimulus tilingii OBL Tall Hedge-Mustard Sisymbrium altissimum FACU St. Anthony's-Turnip Ranunculus bulbosus FAC Suckling Clover Trifolium dubium FACU Tall Horned Beak Sedge Rhynchospora macrostachya OBL St. Augustine Grass Stenotaphrum secundatum FAC Sugar Maple Acer saccharum UPL Tall Manna Grass Glyceria elata OBL St. Peter's-Wort Hypericum crux-andreae FAC Sugar-Berry Celtis laevigata FAC Tall Oat Grass Arrhenatherum elatius FACU Stalked Bulrush Scirpus pedicellatus OBL Sugar-Cane Saccharum officinarum UPL Tall Ragwort Senecio serra FACW Stalkflower Nesaea longipes FACW Suksdorf's Spike-Rush Eleocharis suksdorfiana OBL Tall Rattlesnake-Root Nabalus altissimus UPL Stalk-Grain Sedge Carex stipata OBL Sulphur Beardtongue Penstemon attenuatus FACU Tall Redtop Tridens flavus UPL Stalkless Yellowcress Rorippa sessiliflora OBL Sulphur Buttercup Ranunculus sulphureus OBL Tall Scouring-Rush Equisetum hyemale FACW Star Sedge Carex echinata OBL Sulphur Cosmos Cosmos sulphureus UPL Tall Thimbleweed Anemone virginiana FACU Star Tickseed Coreopsis pubescens FACU Summer Coralroot Corallorhiza maculata UPL Tall Tickseed Coreopsis tripteris FAC Starry False Solomon's-Seal Maianthemum stellatum FACU Summer Grape Vitis aestivalis FAC Tall Woodbeauty FACU Steeplebush Spiraea tomentosa FACW Swamp Bay Persea palustris FACW Talquezal Paspalum virgatum FACW Stemless Locoweed Oxytropis lambertii UPL Swamp Chestnut Oak Quercus michauxii FACW Talus Willowherb Epilobium clavatum FACU Steven's Sedge Carex stevenii FAC Swamp Dock Rumex verticillatus FACW Tansy Dogshade Limnosciadium pinnatum FACW Sticky Cheat Gily-Flower Aliciella pinnatifida FAC Swamp Fly-Honeysuckle Lonicera oblongifolia OBL Tapered Rosette Grass Dichanthelium acuminatum FAC Sticky Currant Ribes viscosissimum FACU Swamp Hornpod Mitreola sessilifolia FACW Taper-Leaf Water-Horehound Lycopus rubellus OBL Sticky False Asphodel Triantha glutinosa OBL Swamp Leather-Flower Clematis crispa FAC Taper-Tip Cup Grass Eriochloa acuminata FAC Sticky Hedge-Hyssop Gratiola brevifolia FACW Swamp Lousewort Pedicularis lanceolata OBL Taper-Tip Flat Sedge Cyperus acuminatus OBL Sticky Mountain-Pink Zeltnera glandulifera FACU Swamp Milkweed Asclepias incarnata FACW Target Dropseed Sporobolus pyramidatus FAC Sticky Mouse-Ear Chickweed Cerastium glomeratum FACU Swamp Milkwort Polygala tenella FACW Tassel Cotton-Grass Eriophorum viridicarinatum OBL Sticky Purple Crane's-Bill Geranium viscosissimum FACU Swamp Prickle Grass Crypsis schoenoides OBL Tawny Cotton-Grass Eriophorum virginicum OBL Sticky Waxweed Cuphea glutinosa FACU Swamp Red Currant Ribes triste OBL Teacher's Sedge Carex praeceptorum OBL Sticky Woodbeauty Drymocallis glandulosa FAC Swamp Rose Rosa palustris OBL Teal Love Grass Eragrostis hypnoides OBL Sticky-Leaf Leopardbane Arnica ovata FACW Swamp Saw-Grass Cladium mariscus OBL Tea-Leaf Willow Salix planifolia OBL Sticky-Willy Galium aparine FACU Swamp Smartweed Persicaria hydropiperoides OBL Ten-Angle Pipewort Eriocaulon decangulare OBL Stiff Bear-Grass Nomaphila stricta OBL Swamp Sunflower Helianthus angustifolius FAC Terrestrial Water-Starwort Callitriche terrestris FACW Stiff Blue-Eyed-Grass Sisyrinchium demissum OBL Swamp Thistle Cirsium muticum FACW Texas Bergia Bergia texana OBL Stiff Cowbane Oxypolis rigidior OBL Swamp Tupelo Nyssa biflora OBL Texas Bindweed Convolvulus equitans FACU Stiff Dogwood Cornus foemina FACW Swampcandles Lysimachia terrestris OBL Texas Cornsalad Valerianella florifera FAC Stiff Marsh Bedstraw Galium tinctorium OBL Swamp-Loosestrife Decodon verticillatus OBL Texas Dropseed Sporobolus texanus FAC Stiff Spadeleaf Centella erecta FACW Swan's Sedge Carex swanii UPL Texas Flat Sedge Cyperus seslerioides FAC Stiff Yellow Flax Linum medium FAC Swaying Club-Rush Schoenoplectus subterminalis OBL Texas Goldentop Euthamia gymnospermoides FAC Stinging Nettle Urtica dioica FAC Sweet Autumn Virgin's-Bower Clematis terniflora FACU Texas Ironweed Vernonia texana FACU Stink Grass Eragrostis cilianensis FACU Sweet Cherry Prunus avium UPL Texas Ladies'-Tresses Spiranthes brevilabris FAC Stinking Camphorweed Pluchea foetida FACW Sweet Coneflower Rudbeckia subtomentosa FAC Texas Milkweed Asclepias texana FACU Stinking Chamomile Anthemis cotula FACU Sweet Shaggytuft Stenandrium dulce FACW Texas Mulberry Morus microphylla UPL Stipitate Cut-Throat Grass Coleataenia stipitata FACW Sweet White Violet Viola blanda FACW Texas Pipewort Eriocaulon texense OBL Stout Meadow Ragwort Senecio hydrophiloides FACW Sweet Wood-Reed Cinna arundinacea FACW Texas Pseudosaxifrage Micranthes texana FACW Stout Rush Juncus nodatus OBL Sweet-Bay Magnolia virginiana OBL Texas Red Oak Quercus texana FACW Stout Smartweed Persicaria robustior OBL Sweet-Berry Honeysuckle Lonicera cauriana FAC Texas Rush Juncus texanus OBL Straggler Daisy Calyptocarpus vialis FAC Sweetbrier Rosa rubiginosa UPL Texas Sea-Purslane Sesuvium trianthemoides OBL Straight-Beak Buttercup Ranunculus orthorhynchus FACW Sweet-Flower Rock-Jasmine Androsace chamaejasme FACU Texas Selenia Selenia dissecta FACW Texas Sunnybell Schoenolirion wrightii FACW Trans-Pecos Cliffbrake Pellaea ternifolia FACU Uptight Sedge Carex stricta OBL Texas Trillium Trillium texanum FAC Trans-Pecos Mouse-Ear Chickweed Uruguayan Pampas Grass Cortaderia jubata UPL Texas Umbrella-Wort Tauschia texana FACW Cerastium axillare FAC Utah Service-Berry Amelanchier utahensis FAC Texas Wild Rice Zizania texana OBL Trans-Pecos Sea-Lavender Limonium limbatum FACW Utah Swampfire Sarcocornia utahensis FACW Texas-Blueweed Helianthus ciliaris FAC Trans-Pecos Sunflower Helianthus paradoxus FACW Vahl's Fimbry Fimbristylis vahlii FACW Texas-Salt Allolepis texana FAC Tree Sparkle-Berry Vaccinium arboreum FACU Valamuerto Senna pendula FAC Texas-Star Sabatia campestris FACU Tree Tobacco Nicotiana glauca FAC Valley Redstem Ammannia coccinea OBL Tex-Mex Tobacco Nicotiana plumbaginifolia FAC Tree-Marigold Tithonia diversifolia FAC Valley Sedge Carex vallicola FAC Thicket Sedge Carex abscondita FAC Tree-of-Heaven Ailanthus altissima FACU Vancouver Island Beggarticks Bidens amplissima FACW Thicket-Creeper Parthenocissus inserta FAC Triangle Cactus Acanthocereus tetragonus FACU Variable Flat Sedge Cyperus difformis OBL Thick-Head Sedge Carex pachystachya FAC Triangle-Lobe Moonwort Botrychium ascendens FAC Variable Rosette Grass Dichanthelium commutatum FAC Thick-Leaf Drymary Drymaria pachyphylla FACU Triangular-Valved Dock Rumex triangulivalvis FACW Variable-Leaf Scorpion-Weed Phacelia heterophylla FAC Thick-Leaf Phlox Phlox carolina FACU Tropical Flat Sedge Cyperus surinamensis FACW Variable-Leaf Sunflower Helianthus heterophyllus OBL Thick-Leaf Ragwort Senecio crassulus FACU Tropical Girdlepod Mitracarpus hirtus FACU Variegated Scouring-Rush Equisetum variegatum FACW Thieret's Skullcap Scutellaria thieretii FACW Tropical Liverseed Grass Urochloa distachya FAC Vasey's Grass Paspalum urvillei FACW Thin-Fruit Sedge Carex flaccosperma FACW Tropical Puff Neptunia pubescens FAC Vasey's Pondweed Potamogeton vaseyi OBL Thread Rush Juncus filiformis OBL Tropical Reed Phragmites karka FACW Vasey's Rush Juncus vaseyi FACW Thread-Leaf Beak Sedge Rhynchospora filifolia FAC Tropical Royal-Blue Water-Lily Nymphaea elegans OBL Veiny Dock Rumex venosus FAC Thread-Leaf Water-Crowfoot Ranunculus trichophyllus OBL Tropical Sprangletop Leptochloa virgata FAC Veiny Vetchling Lathyrus venosus FAC Thread-Stem Carpetweed Mollugo cerviana FAC Tropical White Morning-Glory Ipomoea alba FAC Veiny-Leaf Meadow-Rue Thalictrum venulosum FAC Threebirds Triphora trianthophoros FACU Troublesome Sedge Carex molesta FACW Velvet Ash Fraxinus velutina FAC Three-Leaf False Solomon's-Seal True Forget-Me-Not Myosotis scorpioides OBL Velvet Mesquite Prosopis velutina FACU Maianthemum trifolium OBL Trumpet Evening-Primrose Oenothera jamesii FACW Velvetleaf Abutilon theophrasti UPL Three-Leaf Goldthread Coptis trifolia FACW Trumpet Honeysuckle Lonicera sempervirens FAC Velvet-Leaf Blueberry Vaccinium myrtilloides FACW Three-Lobe Beggarticks Bidens tripartita FACW Trumpet-Creeper Campsis radicans FACU Velvetweed Oenothera curtiflora UPL Three-Lobe False Mallow Malvastrum coromandelianum FAC Trumpetweed Eutrochium fistulosum FACW Vernal Water-Starwort Callitriche palustris OBL Three-Lobe Violet Viola palmata FACU Tuberous Grass-Pink Calopogon tuberosus OBL Verrucose Sea-Purslane Sesuvium verrucosum FACW Three-Petal Bedstraw Galium trifidum OBL Tuckerman's Sedge Carex tuckermanii OBL Vine-Mesquite Hopia obtusa FAC Three-Seed Sedge Carex trisperma OBL Tufted Alpine Saxifrage Saxifraga caespitosa FACU Violet Crab Grass Digitaria violascens FAC Three-Square Schoenoplectus pungens OBL Tufted Hair Grass Deschampsia caespitosa FACW Violet Mock Brookfoam Suksdorfia violacea FAC Three-Way Sedge Dulichium arundinaceum OBL Tufted Leafless-Bulrush Trichophorum caespitosum OBL Virginia Blueflag Iris virginica OBL Thurber's Bog Orchid Platanthera limosa OBL Tufted Meadow-Foxtail Alopecurus carolinianus FACW Virginia Bunchflower Veratrum virginicum FACW Thurber's Pepperwort Lepidium thurberi UPL Tufted Yellow-Loosestrife Lysimachia thyrsiflora OBL Virginia Buttonweed Diodia virginiana OBL Thyme-Leaf Sandwort Arenaria serpyllifolia FACU Tuliptree Liriodendron tulipifera FACU Virginia Chain Fern Woodwardia virginica OBL Thyme-Leaf Speedwell Veronica serpyllifolia OBL Tumbleweed Amaranthus albus FACU Virginia Dayflower Commelina virginica FAC Tierra del Fuego Dock Rumex fueginus FACW Tumbling Orache Atriplex rosea FACU Virginia Dwarf-Dandelion Krigia virginica FACU Tievine Ipomoea cordatotriloba FAC Turion Duckweed Lemna turionifera OBL Virginia Fen-Rose Kosteletzkya pentacarpos OBL Tilesius' Wormwood Artemisia tilesii FACU Turkey-Tangle Phyla nodiflora FAC Virginia Mountain-Mint Pycnanthemum virginianum FAC Timber Wild Oat Grass Danthonia intermedia FAC Turtle-Grass Thalassia testudinum OBL Virginia Spiderwort Tradescantia virginiana FAC Timothy Canary Grass Phalaris angusta FACW Turtleweed Batis maritima OBL Virginia Springbeauty Claytonia virginica FACU Tinted Woodland Spurge Euphorbia commutata FACU Tussock Cotton-Grass Eriophorum vaginatum OBL Virginia St. John's-Wort Hypericum virginicum OBL Tiny Bluet Houstonia pusilla UPL Tussock Dropseed Sporobolus diandrus UPL Virginia Strawberry Fragaria virginiana FACU Tiny Mousetail Myosurus minimus FACW Twining Screwstem Bartonia paniculata OBL Virginia Sweetspire Itea virginica OBL Tiny Vetchling Lathyrus pusillus FAC Twinsisters Lonicera tatarica FACU Virginia Three-Seed-Mercury Acalypha virginica FACU Tissue Sedge Carex hyalina FACW Twisted Sedge Carex torta FACW Virginia Water-Horehound Lycopus virginicus OBL Toad Rush Juncus bufonius OBL Twisted Spike-Rush Eleocharis tortilis FACW Virginia Wild Rye Elymus virginicus FAC Tobacco-Root Valeriana edulis FAC Twisted Tanglehead Heteropogon contortus UPL Virginia Winged Rockcress Planodes virginicum FAC Tongue-Shape Bogmat Wolffiella lingulata OBL Two-Flower Dwarf-Dandelion Krigia biflora FAC Virginia-Creeper Parthenocissus quinquefolia FACU Toothachetree Zanthoxylum americanum UPL Two-Leaf Bishop's-Cap Mitella diphylla FACU Virginia-Snakeroot Endodeca serpentaria FACU Toothed Dock Rumex dentatus FACU Two-Leaf Groundsel Packera dimorphophylla FACU Viviparous Spike-Rush Eleocharis vivipara OBL Toothed Medick Medicago polymorpha FACU Two-Leaf Water-Milfoil Myriophyllum heterophyllum OBL Wall Barley Hordeum murinum FACU Torpedo Grass Panicum repens FAC Two-Leaf Waterweed Elodea bifoliata OBL Wand Blackroot Pterocaulon virgatum FAC Torrey's Club-Rush Schoenoplectus torreyi OBL Two-Lobe Larkspur Delphinium nuttallianum FACU Wand Goldenrod Solidago stricta OBL Torrey's Rush Juncus torreyi FACW Two-Wing Silverbell Halesia diptera FAC Wand Panic Grass Panicum virgatum FAC Torrey's Sedge Carex torreyi UPL Uinta Clover Trifolium dasyphyllum FACU Warty Panic Grass Panicum verrucosum FACW Tower Larkspur Delphinium glaucum FACW Umbrella Flat Sedge Cyperus diandrus FACW Warty Sedge Carex verrucosa OBL Towering Jacob's-Ladder Polemonium foliosissimum FAC Umbrella Magnolia Magnolia tripetala FAC Warty Spurge Euphorbia spathulata FACU Tracy's Thistle Cirsium tracyi FACU Umbrella Starwort Stellaria umbellata FACW Wasatch Desert-Parsley Lomatium bicolor UPL Trailing Black Currant Ribes laxiflorum FACU Upland Bent Agrostis perennans FAC Washington Hawthorn Crataegus phaenopyrum FAC Trailing Fleabane Erigeron flagellaris FAC Upland Cotton Gossypium hirsutum UPL Washington Monkey-Flower Mimulus washingtonensis OBL Trailing Fuzzy-Bean Strophostyles helvola FACU Upland Swamp-Privet Forestiera ligustrina FAC Water Birch Betula occidentalis FACW Trailing Pearlwort Sagina decumbens FAC Upright Blue Beardtongue Penstemon virgatus FACU Water Dawnflower Stylisma aquatica FACW Trailing Yellow-Loosestrife Lysimachia radicans FACW Upright Burrhead Echinodorus berteroi OBL Water Hickory Carya aquatica OBL Trans-Pecos Amaranth Amaranthus obcordatus FACU Upright Yellow Wood-Sorrel Oxalis stricta FACU Water Horsetail Equisetum fluviatile OBL Water Manna Grass Glyceria fluitans OBL Western Teaberry Gaultheria ovatifolia FAC White-Root Rush Juncus brachycarpus FACW Water Mint Mentha aquatica FACW Western Thimble-Berry Rubus parviflorus FACU Whitestar Ipomoea lacunosa FACW Water Oak Quercus nigra FAC Western Turkeybeard Xerophyllum tenax FAC White-Stem Gooseberry Ribes inerme FACW Water Pygmyweed Crassula aquatica OBL Western Umbrella Sedge Fuirena simplex OBL White-Stem Pondweed Potamogeton praelongus OBL Water Smartweed Persicaria amphibia OBL Western Water-Hemlock Cicuta douglasii OBL White-Stem Raspberry Rubus leucodermis FAC Water Tupelo Nyssa aquatica OBL Western Waterweed Elodea nuttallii OBL White-Tinge Sedge Carex albicans FACU Water Whorl Grass Catabrosa aquatica OBL Western-Wheat Grass Pascopyrum smithii FACU Whitish Gentian Gentiana algida FACW Watercress Nasturtium officinale OBL Wheat Sedge Carex atherodes OBL Whorled Locoweed Oxytropis splendens FACU Water-Dead-and-Awake Neptunia plena FACW Whip Nut-Rush Scleria triglomerata FAC Whorled Marsh-Pennywort Hydrocotyle verticillata OBL Water-Dragon Calla palustris OBL Whiplash Dewberry Rubus flagellaris UPL Whorled Milkweed Asclepias verticillata FACU Water-Lettuce Pistia stratiotes OBL Whip-Poor-Will-Flower Trillium cernuum FAC Whorled Milkwort Polygala verticillata FACU Water-Locust Gleditsia aquatica OBL Whisk Fern Psilotum nudum FACW Whorled Mountain-Mint Pycnanthemum verticillatum FACW Watermelon Citrullus lanatus UPL White Adder's-Mouth Orchid Malaxis monophyllos FACW Whorled Water-Milfoil Myriophyllum verticillatum OBL Water-Plantain Buttercup Ranunculus alismifolius OBL White Arctic Mountain-Heather Cassiope tetragona FACU Whortle-Berry Vaccinium myrtillus UPL Water-Purslane Didiplis diandra OBL White Ash Fraxinus americana FACU Widow Sedge Carex basiantha FACW Watershield Brasenia schreberi OBL White Avens Geum canadense FAC Widow's-Cross Sedum pulchellum FACU Water-Spangles Salvinia minima OBL White Beak Sedge Rhynchospora alba OBL Wiegand's Wild Rye Elymus wiegandii FAC Water-Spider False Rein Orchid White Blue-Eyed-Grass Sisyrinchium albidum FACU Wild Balsam-Apple Echinopepon wrightii FAC Habenaria repens OBL White Catchfly Silene menziesii UPL Wild Black Currant Ribes americanum FACW Watersprite Ceratopteris thalictroides OBL White Checkerbloom Sidalcea candida FAC Wild Blue Lettuce Lactuca biennis FAC Waterthread Potamogeton diversifolius OBL White Clover Trifolium repens FACU Wild Blue Phlox Phlox divaricata FACU Water-Thyme Hydrilla verticillata OBL White Coil-Beak Lousewort Pedicularis contorta FACU Wild Chives Allium schoenoprasum FACU Wavy Hair Grass Deschampsia flexuosa UPL White Colicroot Aletris farinosa FAC Wild Cow-Pea Vigna luteola FACW Wavy Waternymph Najas flexilis OBL White Crane's-Bill Geranium richardsonii FAC Wild Cucumber Echinocystis lobata FAC Wavy-Leaf Thistle Cirsium undulatum FACU White Crownbeard Verbesina virginica FACU Wild Hydrangea Hydrangea arborescens FACU Wawawai Wild Rye Elymus wawawaiensis FACU White Doll's Daisy Boltonia asteroides FACW Wild Leadwort Plumbago zeylanica FAC Wax-Mallow Malvaviscus arboreus UPL White Fen-Rose Kosteletzkya depressa FAC Wild Sarsaparilla Aralia nudicaulis FACU Waxy Rush-Pea Hoffmannseggia glauca FAC White Fluff Grass Tridens albescens FAC Wild Tantan Desmanthus virgatus FACU Waxy-Leaf Meadow-Rue Thalictrum revolutum FACW White Fringetree Chionanthus virginicus FACU Wild Yam Dioscorea villosa FAC Weak Rush Juncus debilis FACW White Grass Leersia virginica FACW Willow Oak Quercus phellos FACW Weak-Stalk Club-Rush Schoenoplectus purshianus OBL White Heath American-Aster Symphyotrichum ericoides FACU Willow-Leaf American-Aster Symphyotrichum praealtum FACW Weak-Stem Groundsel Packera debilis FACW White Horehound Marrubium vulgare FACU Willow-Leaf Lettuce Lactuca saligna FACU Wedgeleaf Phyla cuneifolia FAC White Leadtree Leucaena leucocephala FACU Winaha Currant Ribes wolfii FAC Wedge-Leaf Orache Atriplex truncata FAC White Mangrove Laguncularia racemosa FACW Wing-Angle Loosestrife Lythrum alatum OBL Wedge-Leaf Saxifrage Saxifraga adscendens FACW White Marsh-Marigold Caltha leptosepala OBL Winged Dock Rumex spiralis FACW Weedy Dwarf-Dandelion Krigia caespitosa FAC White Meadowsweet Spiraea alba FACW Winged Elm Ulmus alata FACU Welsh's Bugseed Corispermum welshii UPL White Moth Mullein Verbascum blattaria UPL Winged Sumac Rhus copallinum UPL West Indian Beak Sedge Rhynchospora brachychaeta OBL White Mountain Clover Trifolium neurophyllum FACW Winged-Pigweed Cycloloma atriplicifolium FACU West Indian Milkberry Chiococca alba FACU White Mountain-Avens Dryas integrifolia FACU Wing-Leaf Primrose-Willow Ludwigia decurrens OBL West Indian Panic Grass Panicum diffusum FAC White Mulberry Morus alba FACU Wing-Leaf Soapberry Sapindus saponaria FACU West Indian Shrub-Verbena Lantana urticoides FACU White Nodding Ladies'-Tresses Spiranthes cernua FACW Wing-Pod Purslane Portulaca umbraticola FAC Western American-Aster Symphyotrichum ascendens FACU White Oldfield American-Aster Symphyotrichum pilosum FACU Wingstem Verbesina alternifolia FAC Western Arborvitae Thuja plicata UPL White Panicled American-Aster Symphyotrichum lanceolatum FACW Winter Bent Agrostis hyemalis FACW Western Bottle-Brush Grass Elymus elymoides UPL White Rattlesnake-Root Nabalus albus FACU Wire-Stem Muhly Muhlenbergia frondosa FACW Western Canada Goldenrod Solidago lepida FACU White River Coraldrops Besseya plantaginea FACW Wiry Blue-Eyed-Grass Sisyrinchium biforme FAC Western Coneflower Rudbeckia occidentalis FAC White Sagebrush Artemisia ludoviciana UPL Wiry Panic Grass Panicum flexile FACW Western Dock Rumex occidentalis OBL White Snakeroot Ageratina altissima UPL Wolf's Spike-Rush Eleocharis wolfii OBL Western False Asphodel Triantha occidentalis FACW White Spike-Rush Eleocharis albida OBL Woman's-Tongue Albizia lebbeck UPL Western False Deathcamas Anticlea occidentalis FACW White Spruce Picea glauca FACU Wood Lily Lilium philadelphicum FACU Western False Dragonhead Physostegia parviflora FACW White Turtlehead Chelone glabra OBL Woodland Bittercress Cardamine flexuosa FACW Western Goldentop Euthamia occidentalis OBL White Twinevine Funastrum clausum FACW Woodland Blue Grass Poa sylvestris FAC Western Inflated Sedge Carex exsiccata OBL White Vervain Verbena urticifolia FAC Woodland Buttercup Ranunculus uncinatus FACW Western Ironweed Vernonia baldwinii FACU White Water-Crowfoot Ranunculus aquatilis OBL Woodland Flax Linum virginianum FAC Western Jacob's-Ladder Polemonium occidentale FACW White Wild Indigo Baptisia alba FACU Woodland Forget-Me-Not Myosotis sylvatica FACU Western Lady Fern Athyrium cyclosorum FAC White Willow Salix alba FACW Woodland Grooveburr Agrimonia striata FACU Western Marsh Cudweed Gnaphalium palustre OBL White-Edge Flat Sedge Cyperus flavicomus FAC Woodland Horsetail Equisetum sylvaticum FACW Western Moonwort Botrychium hesperium FACU White-Edge Sedge Carex debilis OBL Woodland Lettuce Lactuca floridana FAC Western Moss-Heather Cassiope mertensiana FACU White-Flower Pincushion-Plant Navarretia leucocephala OBL Woodland Muhly Muhlenbergia sylvatica FACW Western Poison Ivy Toxicodendron rydbergii FACU White-Flower Willowherb Epilobium lactiflorum FACW Woodland Saxifrage Saxifraga mertensiana OBL Western Quillwort Isoetes occidentalis OBL White-Head Bogbutton Lachnocaulon anceps OBL Woodland Strawberry Fragaria vesca UPL Western Rock-Jasmine Androsace occidentalis FACU White-Leaf Mountain-Mint Pycnanthemum albescens FAC Woodrush Flat Sedge Cyperus entrerianus FACW Western Rough Sedge Carex senta OBL White-Mouth Dayflower Commelina erecta FACU Woodrush Sedge Carex luzulina OBL Western Seepweed Suaeda occidentalis FACW White-Mustard Sinapis alba FAC Woods' Rose Rosa woodsii FACU Western Snowberry Symphoricarpos occidentalis UPL Whitenymph Trepocarpus aethusae FACW Woolly Fimbry Fimbristylis tomentosa FACW Woolly Groundsel Packera tomentosa FACU Yellow-Seed False Pimpernel Lindernia dubia OBL Woolly Pipevine Isotrema tomentosum FAC Yellow-Trumpets Sarracenia alata OBL Woolly Rosette Grass Dichanthelium scabriusculum OBL Yerba-Mansa Anemopsis californica FACW Woolly Sedge Carex pellita OBL Yew-Leaf Willow Salix exilifolia FAC Woolly-Fruit Sedge Carex lasiocarpa OBL Zarzabacoa-Comun Desmodium incanum FAC Woolly-Leaf Burr-Ragweed Ambrosia grayi FAC Zigzag Bladderwort Utricularia subulata OBL Worm-Seed Wallflower Erysimum cheiranthoides FACU Zigzag Goldenrod Solidago flexicaulis FACU Wreath Goldenrod Solidago caesia FACU Zigzag Iris Iris brevicaulis OBL Wright's Dropseed Sporobolus wrightii FAC Zigzag Knotweed Polygonum minimum FAC Wright's Dwarf-Gentian Gentianella wrightii FACW Zizotes Milkweed Asclepias oenotheroides FACU Wright's Eryngo Eryngium heterophyllum FAC Wright's False Willow Baccharis wrightii FACU Wright's Morning-Glory Ipomoea wrightii FACW Wright's Muhly Muhlenbergia wrightii FACU Wright's Rabbit-Tobacco Pseudognaphalium canescens UPL Wright's Spiderwort Tradescantia wrightii FACW Wright's Thistle Cirsium wrightii OBL Wrinkled Joint-Tail Grass Coelorachis rugosa FACW Wrinkle-Leaf Goldenrod Solidago rugosa FAC Wych Elm Ulmus glabra FACU Yankeeweed Eupatorium compositifolium FACU Yard Knotweed Polygonum aviculare FACU Yaupon Ilex vomitoria FAC Yaupon Black-Senna Seymeria cassioides FAC Yellow Avens Geum aleppicum FACU Yellow Beeplant Peritoma lutea FACU Yellow Birch Betula alleghaniensis FACU Yellow Bluebead-Lily Clintonia borealis FAC Yellow Bractspike Yeatesia viridiflora FACW Yellow Bristle Grass Setaria pumila FACU Yellow Coralroot Corallorhiza trifida FAC Yellow Flat Sedge Cyperus flavescens OBL Yellow Floatingheart Nymphoides peltata OBL Yellow Fringed Orchid Platanthera ciliaris FACW Yellow Fumewort Corydalis flavula FACU Yellow Gentian Gentiana alba FAC Yellow Giant-Hyssop Agastache nepetoides FACU Yellow Glandweed Parentucellia viscosa FAC Yellow Hedge-Hyssop Gratiola flava 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 Meadow-Beauty Rhexia lutea FACW Yellow Mountain-Heath Phyllodoce glanduliflora FACU Yellow Necklacepod Sophora tomentosa UPL Yellow Nicker Caesalpinia bonduc FACU Yellow Pincushion-Plant Navarretia breweri FAC Yellow Pond-Lily Nuphar advena OBL Yellow Puff Neptunia lutea FACU Yellow Scorpion-Grass Myosotis discolor FACU Yellow Spike-Rush Eleocharis flavescens OBL Yellow Sunnybell Schoenolirion croceum OBL Yellow Sweet-Clover Melilotus officinalis FACU Yellow Thistle Cirsium horridulum FAC Yellow Trout-Lily Erythronium rostratum FAC Yellow Trumpetbush Tecoma stans UPL Yellow Wide-Lip Orchid Liparis loeselii OBL Yellow Willow Salix lutea FACW Yellowdicks Helenium amarum FACU Yellow-Flower Knotweed Polygonum ramosissimum FACW Yellow-Fruit Horse-Gentian Triosteum angustifolium FAC Yellow-Fruit Sedge Carex annectens FACW Yellow-Green Sedge Carex flava OBL