Family Common Name Genus Species Common name Other name(s) Legume or Pea Family Acacia angustissima Prairie acacia Spurge Family Acalypha gracilens Slender copperleaf Spurge Family Acalypha ostryaefolia Hophornbeam copperleaf Maple Family Acer saccharinum* Silver maple Maple Family Acer saccharum Sugar maple Composite (Sunflower) Family Achillea lanulosa Western yarrow Composite (Sunflower) Family Achillea millefolium Yarrow Buckeye Family Aesculus glabra Ohio buckeye Amaryllis Family Agave lata Agave Composite (Sunflower) Family Agoseris cuspidata Wavyleaf agoseris Rose Family Agrimonia parviflora Mayflower grovebur Grass Family Agropyron repens* Couch grass Grass Family Agrostis elliottiana Elliott bentgrass Grass Family Agrostis hymenalis Winter bentgrass Quassis Family Ailanthus altissima* Tree-of-heaven Lily Family Allium canadense Canada garlic Lily Family Allium drummondii Drummond onion Lily Family Allium stellatum Prairie onion Grass Family Alopecurus caroliniana Carolina foxtail Amaranth Family Alternanthera repens Mat chaff flower Amaranth Family Amaranthus graecizans Tumbleweed Amaranth Family Amaranthus hybridus Slim amaranth Amaranth Family Amaranthus palmeri Palmer amaranth Amaranth Family Amaranthus retroflexus Redroot amaranth Amaranth Family Amaranthus tamarascinus Waterhemp Composite (Sunflower) Family Ambrosia artemisiifolia Ragweed Composite (Sunflower) Family Ambrosia psilostachys Western ragweed Composite (Sunflower) Family Ambrosia trifida Giant ragweed Rose Family Amelanchier arborea* Service berry Loosestrife Family Ammannia auriculata Earleaf ammannia Loosestrife Family Ammannia coccinea Purple ammannia Carrot Family Ammoselinum butleri Butler sandparsley Carrot Family Ammoselinum popei Plains sandparsley Legume or Pea Family Amorpha canescens Leadplant Legume or Pea Family Amorpha fruticosa Indigobush amorpha (false indigo, bastard indigo) Legume or Pea Family Amorpha microphylla* Smallleaf amorpha Legume or Pea Family Amorpha nana* Fragrant false indigo Grape Family Ampelopsis cordata Heartleaf ampelopsis Dogbane Family Amsonia ciliata var. texana Texas slimpod Dogbane Family Amsonia tabernaemontana Willow slimpod Grass Family Andropogon barbinodis Cane bluestem Grass Family Andropogon gerardii var. gerardii Big bluestem Primrose Family Androsace occidentalis Western rockjasmine Lily Family Androstephium coeruleum Blue funnel-lily Buttercup Or Crowfoot Family Anemone caroliniana Carolina anemone Buttercup Or Crowfoot Family Anemone decapetala tenpetal anemone Composite (Sunflower) Family Antennaria plantaginifolia Plantain-leaf pussy toes Composite (Sunflower) Family Aphanostephus pilosus Hairy dozedaisy Composite (Sunflower) Family Aphanostephus ramosissimus Plains dozedaisy Composite (Sunflower) Family Aphanostephus skirrhobasis Arkansas dozedaisy Legume or Pea Family Apios americana Groundnut Dogbane Family Apocynum cannabinum var. glaberrimum Hemp dogbane Mustard Family Arabis missouriensis Green rockcress Pink Family Arenaria patula Pitcher's sandwort Pink Family Arenaria stricta var. texana Texas sandwort Poppy Family Argemone polyanthemos Prickle poppy Arum or Calla Family Arisaema dracontium Dragonroot or Jack-in-the-pulpit Grass Family Aristida dichotoma var. curtissii Curtis threeawn Grass Family Aristida dichotoma var. dichotoma Churchmousse threeawn Grass Family Aristida longespica Slimspike threeawn Grass Family Aristida longiseta Red threeawn Grass Family Aristida oligantha Oldfield threeawn Grass Family Aristida purpurea Purple threeawn Grass Family Aristida wrightii Wright threeawn Birthwort Family Aristolochia tomentosa Woolly dutchmanpipe Composite (Sunflower) Family Artemisia Carruthii Carruth sagewort Composite (Sunflower) Family Artemisia filifolia Figleaf sagewort (Sand Sage) Composite (Sunflower) Family Artemisia glauca False terragon sagewort Composite (Sunflower) Family Artemisia ludoviciana var. ludoviciana Louisiana sagewort (White Sage) Composite (Sunflower) Family Artemisia ludoviciana var. mexicana American sagewort Composite (Sunflower) Family Artemisia serrata* Sawtooth sagewort Milkweed Family Asclepias asperula var. decumbens Trailing milkweed Milkweed Family Asclepias latifolia Broadleaf milkweed Milkweed Family Asclepias pumila Plains milkweed Milkweed Family Asclepias stenophylla Slimleaf milkweed Milkweed Family Asclepias sullivantii Sullivant milkweed Milkweed Family Asclepias tuberosa Butterfly milkweed Milkweed Family Asclepias verticillata Whorled milkweed Milkweed Family Asclepias viridiflora Green acerates Milkweed Family Asclepias viridis Green antelope horn True Fern Family Asplenium trichomanes Spleenwort Composite (Sunflower) Family Aster communtatus* Cluster aster Composite (Sunflower) Family Aster ericoides Heath aster Composite (Sunflower) Family Aster fendleri Fendler aster Composite (Sunflower) Family Aster oblongifolius Aromatic aster Composite (Sunflower) Family Aster patens Skydrop aster Composite (Sunflower) Family Aster subulatus Awl shaped aster Legume or Pea Family Astragalus crassicarpus Groundplum milkvetch Legume or Pea Family Astragalus lindheimeri Lindheimer milkvetch Legume or Pea Family Astragalus plattensis Platte milkvetch Composite (Sunflower) Family Baccharis salicina Willow groundsel-tree Figwort Or Snapdragon Family Bacopa rotundifolia Disc waterhyssop Legume or Pea Family Baptisia australis var. minor Blue wild indigo Legume or Pea Family Baptisia leucophaea Plains wild indigo Large-bracted Indigo Legume or Pea Family Baptisia sphaerocarpa Golden wild indigo Composite (Sunflower) Family Berlandiera texana Texas greeneyes Composite (Sunflower) Family Bidens cernua Nodding beggarticks Composite (Sunflower) Family Bidens frondosa Devil's beggarticks Nettle Family Boehmeria cylindrica Smallspike falsenettle Grass Family Bothriochloa saccharoides Silver bluestem Grass Family Bouteloua curtipendula Sideoats grama Grass Family Bouteloua gracilis Blue grama Grass Family Bouteloua hirsuta Hairy grama Grass Family Bouteloua rigidiseta Texas grama Amaranth Family Brayulinea densa* Cottonflower Grass Family Bromus arvensis* Field brome Grass Family Bromus japonicus Japanese brome Grass Family Bromus purgans Canada brome Grass Family Bromus tectorum Cheatgrass Grass Family Bromus uniloides Rescuegrass Grass Family Buchloe dactyloides Buffalo grass Sedge Family Bulbostylis capillaris Hairsedge Bumelia lanuginosa Woollybucket bumelia Chittamwood Mallow Family Callirhoe leiocarpa Tall poppymallow Mallow Family Callirhoe involucrata Low poppymallow, winecup Water-Starwort Family Callitriche heterophylla Larger waterstar wort Lily Family Camassia scilloides Atlantic camass Wild hyacinth Mustard Family Capsella bursa-pastoris Shepherdspurse Sedge Family Carex amphibola Narrowleaf sedge Sedge Family Carex annectens Yellowfruit sedge Sedge Family Carex austrina Southern sedge Sedge Family Carex blanda Woodland sedge Sedge Family Carex festucacea Fescue sedge Sedge Family Carex frankii Frank sedge Sedge Family Carex gravida var. lunelliana Lunell sedge Sedge Family Carex joori Hummock sedge Sedge Family Carex microrhyncha Littlesnout sedge Sedge Family Carex praegracilis Slender sedge Sedge Family Carex stricta var. elongata Emory sedge Sedge Family Carex vulpinoidea Fox sedge Walnut Family Carya cordiformis Bitternut hickory Walnut Family Carya illinoensis Pecan Legume or Pea Family Cassia marilandica Wild senna Legume or Pea Family Cassia fasciculata Showy partridgepea Chamaecrista fasciculata Figwort Or Snapdragon Family Castilleja citrina Citron paintbrush Figwort Or Snapdragon Family Castilleja sessiliflora Downy paintbrush Trumpet Creeper Family Catalpa speciosa Catalpa Buckthorn Family Ceanothus herbaceus var. pubescens Fuzzy ceanothus Staff-Tree Family Celastrus scandens American bittersweet Elm Family Celtis laevigata Sugar hackberry Sugarberry Elm Family Celtis occidentalis Hackberry Elm Family Celtis reticulata Netleaf hackberry Grass Family Cenchrus pauciflorus Mat sandbur Composite (Sunflower) Family Centaurea americana Basketflower Madder Family Cephalanthus occidentalis Buttonbush Pink Family Cerastium brachypodum Shortstalk chickweed Hornwort Family Ceratophyllum demersum Coontail Legume or Pea Family Cercis canadensis Redbud Carrot Family Chaerophyllum tainturieri var. dasycarpum Hairyfruit chervil Composite (Sunflower) Family Chaetopappa asteroides Least daisy Grass Family Chasmanthium latifolium Broadleaf uniola Uniola latifolia, Fish-on-a-fishi True Fern Family Cheilanthes vestita Lipferrn True Fern Family Cheilanthes eatoni Eaton lipfern True Fern Family Cheilanthes fendleri* Fendler Lipfern True Fern Family Cheilanthes lanosa Hairy lipfern True Fern Family Cheilanthes lindheimeri Lindheimer lipfern True Fern Family Cheilanthes wootoni* Wooton lipfern Goosefoot Family Chenopodium album Lambsquarters Goosefoot Family Chenopodium hybridum var. gigantospermum Bigseed goosefoot Goosefoot Family Chenopodium leptophyllum Slimleaf goosefoot Goosefoot Family Chenopodium standleyanum Standley goosefoot Trumpet Creeper Family Chilopsis linearis* Desert willow Grass Family Chloris verticillata Tumble windmillgrass Grass Family Chloris virgata Showy chloris Composite (Sunflower) Family Chrysopsis pilosa Soft goldaster Composite (Sunflower) Family Chrysopsis villosa var. canescens Hairy goldaster Composite (Sunflower) Family Chrysopsis villosa var. stenophylla Narrowleaf goldaster Composite (Sunflower) Family Chrysopsis villosa var. villosa Hairy goldaster Carrot Family Circuta maculata Spotted water hemlock Composite (Sunflower)