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| scientific name | common name(s) | image gallery |
| Abronia ameliae | Amelia's sand verbena Heart’s delight Amelia's sand-verbena Sand verbena | |
| Acacia berlandieri | Guajillo Berlandier acacia Thornless Catclaw Mimosa Catclaw Round-flowered Catclaw Huajillla Matoral | |
| Acacia farnesiana | Huisache Sweet acacia Mealy wattle | |
| Achillea millefolium | Common yarrow Yarrow Milfoil Western yarrow | |
| Acacia rigidula | Blackbrush acacia Blackbrush Catclaw Chaparro prieto Gavia | |
| Acourtia wrightii | Brownfoot Pink perezia | |
| Aesculus pavia | Scarlet Buckeye Red buckeye Firecracker plant | |
| Agave lechuguilla | Lechuguilla | |
| Agave parryi ssp. parryi | Century plant Mescal Parry's agave Rough agave | |
| Agalinis purpurea | Purple false foxglove Purple gerardia Gerardia | |
| Aletris aurea | Golden colicroot Colicroot Star grass Yellow colic root | |
| Allium canadense var. canadense | Canada onion Meadow garlic Wild onion | |
| Allium canadense var. mobilense | Meadow garlic Wild onion | |
| Alophia drummondii | Propeller flower Purple pleat-leaf Pinewoods lily Prairie iris Pleatleaf iris | |
| Aloysia gratissima | Whitebrush Bee-brush White-brush Common bee-brush Beebrush Privet lippia | |
| Allionia incarnata | Trailing windmills Trailing four o'clock Pink windmills Trailing allionia | |
| Amsonia ciliata | Fringed bluestar Bluestar Blue funnel lily Texas bluestar | |
| Amblyolepis setigera | Huisache daisy Butterfly daisy Honey daisy | |
| Anemone berlandieri | Tenpetal thimbleweed Ten-petaled anemone Wind-flower | |
| Androstephium caeruleum | Androstephium Blue funnel lily Blue Funnel-lily Fragrant lily Funnel-Flower | |
| Aphanostephus skirrhobasis | Lazy daisy Arkansas lazy daisy Arkansas dozedaisy | |
| Argemone albiflora | Bluestem pricklypoppy White pricklypoppy | |
| Argemone chisosensis | Chisos Mountain pricklypoppy | |
| Arisaema dracontium | Green dragon Dragonroot Greendragon | |
| Argemone mexicana | Mexican pricklypoppy Mexican prickly poppy Yellow pricklypoppy | |
| Arisaema triphyllum ssp. quinatum | Five-leaved Jack-in-the-pulpit Jack in the pulpit Indian turnip | |
| Arbutus xalapensis | Texas madrone Madrone Naked indian Manzanita | |
| Asclepias asperula | Spider milkweed Antelope horns Green-flowered milkweed Spider antelope-horns | |
| Astragalus giganteus | Giant milkvetch | |
| Asclepias latifolia | Broadleaf milkweed | |
| Astragalus mollissimus | Purple locoweed Woolly loco Woolly locoweed Woolly milkvetch Wooly loco Wooly locoweed | |
| Asclepias tuberosa | Butterflyweed Butterfly milkweed Orange milkweed Pleurisy root | |
| Aureolaria grandiflora | False foxglove Largeflower yellow false foxglove | |
| Baptisia bracteata var. leucophaea | Longbract wild indigo Cream false indigo Plains wild indigo Cream wild indigo Large-bracted wild indigo | |
| Baileya multiradiata | Desert marigold Showy desert marigold Paper daisy Desert baileya | |
| Baptisia sphaerocarpa | Bush pea Green wild indigo Yellow wild indigo Yellow wisteria | |
| Berlandiera lyrata | Chocolate daisy Chocolate flower Lyreleaf greeneyes Green-Eyed lyre leaf | |
| Bignonia capreolata | Crossvine | |
| Boerhavia linearifolia | Narrowleaf spiderling | |
| Bouvardia ternifolia | Scarlet bouvardia Firecracker bush Trompetilla Clavillo | |
| Callicarpa americana | American beautyberry French mulberry | |
| Catalpa bignonioides | Southern catalpa Cigar tree Indian bean | |
| Callirhoe digitata | Finger poppy-mallow Poppy mallow Standing winecup Wine cup Winecup | |
| Castilleja indivisa | Entireleaf indian paintbrush Texas paintbrush Indian paintbrush Scarlet paintbrush Entire-leaf indian-paintbrush | |
| Castilleja integra | Wholeleaf Indian paintbrush Squawfeather | |
| Calochortus kennedyi | Desert mariposa lily Desert mariposa Red mariposa-lily Flame mariposa | |
| Campsis radicans | Trumpet creeper Trumpet vine Common trumpet creeper Cow vine | |
| Calylophus serrulatus | Yellow sundrops Yellow evening primrose Plains evening primrose | |
| Castilleja sessiliflora | Downy painted cup Downy paintbrush Great Plains paintbrush Great Plains indian-paintbrush | |
| Calopogon tuberosus | Tuberous grasspink Grass pink | |
| Centaurea americana | American star-thistle Basket-Flower Star thistle Shaving brush American basket-flower | |
| Centaurium calycosum | Arizona centaury Shortflower centaury Rosita Buckley centaury | |
| Cercis canadensis | Eastern redbud Redbud | |
| Cephalanthus occidentalis | Common buttonbush Buttonbush Button willow | |
| Chamaecrista fasciculata var. fasciculata | Partridge pea Showy Partridge-pea Beeflower | |
| Chilopsis linearis | Desert willow Flowering willow Willow-leaved catalpa Trumpet flower | |
| Chrysactinia mexicana | Damianita | |
| Chionanthus virginicus | White fringetree Fringe tree Grancy Graybeard | |
| Cirsium texanum | Texas thistle | |
| Clematis crispa | Swamp leatherflower Curly clematis Blue jasmine Curlflower | |
| Clematis drummondii | Drummond's clematis Old man’s beard Texas virgin’s bower Goat’s beard | |
| Clematis pitcheri | Purple clematis Purple leatherflower Leatherflower Bluebill | |
| Cnidoscolus texanus | Texas bullnettle Bull nettle Tread-softly Spurge nettle | |
| Conoclinium coelestinum | Blue mistflower | |
| Corydalis curvisiliqua | Curvepod Curvepod fumewort Golden Smoke Scrambled Eggs | |
| Commelina erecta | Whitemouth dayflower Widow's tears Day flower White-mouth dayflower | |
| Cornus florida | Flowering dogwood Virginia dogwood | |
| Coreopsis lanceolata | Lanceleaf coreopsis Lanceleaf tickseed Lance-leaved coreopsis Sand coreopsis | |
| Cosmos parviflorus | Southwest cosmos Southwestern cosmos | |
| Cooperia pedunculata | Hill Country rain lily Prairie lily Rain lily | |
| Coreopsis tinctoria | Plains coreopsis Golden tickseed Goldenwave Calliopsis | |
| Corallorhiza wisteriana | Spring coralroot Early southern coral root Spring coral root Wister's coralroot Yellow coral root | |
| Crinum americanum | Crinum lily Seven sisters Swamp lily Southern swamp lily String lily | |
| Cryptantha palmeri | Palmer's cryptantha | |
| Cucurbita foetidissima | Stinking gourd Buffalo gourd Missouri gourd Stink gourd Wild gourd | |
| Cylindropuntia imbricata var. imbricata | Cane cactus Cholla Teddy-bear cholla Tree cholla Walkingstick cholla | |
| Cylindropuntia leptocaulis | Christmas cactus Christmas cholla Desert Christmas cactus Pencil cactus Tasajillo | |
| Cypripedium parviflorum | Lesser yellow lady's slipper Yellow lady’s-slipper orchid | |
| Dalea formosa | Feather dalea Featherplume | |
| Dalea frutescens | Black dalea Black prairie clover | |
| Dalea greggii | Gregg dalea Gregg's prairie clover Trailing indigo bush Indigo bush | |
| Dasylirion leiophyllum | Green sotol Sotol Desert candle | |
| Datura wrightii | Sacred thorn-apple Jimsonweed Thorn apple Datura Angel Trumpet Sacred datura | |
| Delphinium carolinianum | Carolina larkspur Blue larkspur Prairie larkspur Espuela del caballero | |
| Desmodium psilophyllum | Beggar’s ticks Simpleleaf ticktrefoil Sticktights Wright’s tickclover | |
| Drosera brevifolia | Dwarf sundew Spatulate-leaved sundew | |
| Dyschoriste linearis | Snake herb Polkadots Narrowleaf dyschoriste | |
| Echinocereus chisoensis | Chisos hedgehog Chisos Mountain hedgehog cactus | |
| Echinocereus dasyacanthus | Spiny hedgehog cactus Texas rainbow cactus Golden rainbow hedgehog Yellow Pitaya | |
| Echinocereus enneacanthus | Pitaya Strawberry cactus | |
| Echeandia flavescens | Torrey's craglily Crag lily | |
| Echinocereus reichenbachii | Lace Cactus Lace hedgehog cactus Órgano-pequeño de colores Purple candle | |
| Echinocereus russanthus | Brownspine hedgehog cactus Rusty hedgehog cactus | |
| Echinacea sanguinea | Sanguine purple coneflower | |
| Echinocereus stramineus | Strawberry hedgehog cactus | |
| Echinocactus texensis | Chisos Hedgehog Devil’s head Horse crippler | |
| Echinocereus triglochidiatus | Claret cup Hedgehog cactus Kingcup cactus Mojave mound | |
| Echinocereus viridiflorus var. cylindricus | Green-flowered hedgehog Nylon hedgehog cactus | |
| Engelmannia peristenia | Engelmann's daisy Engelmann Daisy Cutleaf Daisy | |
| Eryngium heterophyllum | Mexican thistle Wright's eryngo | |
| scientific name | common name(s) | image gallery |