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Yucca necopina (Brazos River yucca) - Agavaceae/Century-plant Family Sesuvium verrucosum (verrucose seapurslane) - Aizoaceae/Fig-marigold Family Echinodorus cordifolius (creeping burrhead) - Alismataceae/Water-plantain Family Sagittaria lancifolia (bulltongue arrowhead) - Alismataceae/Water-plantain Family Sagittaria latifolia (wapato) - Alismataceae/Water-plantain Family Achyranthes aspera (devil's horsewhip) - Amaranthaceae/Amaranth Family Achyranthes aspera var. pubescens - Amaranthaceae/Amaranth Family Alternanthera caracasana (washerwoman) - Amaranthaceae/Amaranth Family Amaranthus australis (southern amaranth) - Amaranthaceae/Amaranth Family Amaranthus powellii (Powell's amaranth) - Amaranthaceae/Amaranth Family Gossypianthus lanuginosus (woolly cottonflower) - Amaranthaceae/Amaranth Family Toxicodendron vernix (poison sumac) - Anacardiaceae/Sumac Family Apium graveolens (wild celery) - Apiaceae/Carrot Family Chaerophyllum tainturieri var. tainturieri - Apiaceae/Carrot Family Hedera helix (English ivy) - Araliaceae/Ginseng Family Asclepias oenotheroides (zizotes milkweed) - Asclepiadaceae/Milkweed Family Acmella oppositifolia (oppositeleaf spotflower) - Asteraceae/Aster Family Ambrosia acanthicarpa (flatspine burr ragweed) - Asteraceae/Aster Family Antennaria parvifolia (small-leaf pussytoes) - Asteraceae/Aster Family Artemisia filifolia (sand sagebrush) - Asteraceae/Aster Family Artemisia ludoviciana (white sagebrush) - Asteraceae/Aster Family Berlandiera lyrata (lyreleaf greeneyes) - Asteraceae/Aster Family Bidens laevis (smooth beggartick) - Asteraceae/Aster Family Borrichia frutescens (sea oxeye) - Asteraceae/Aster Family Brickellia cylindracea (gravelbar brickellbush) - Asteraceae/Aster Family Brickellia eupatorioides var. gracillima - Asteraceae/Aster Family Brickellia veronicifolia var. petrophila - Asteraceae/Aster Family Chromolaena ivifolia (ivyleaf thoroughwort) - Asteraceae/Aster Family Cirsium ochrocentrum ssp. ochrocentrum - Asteraceae/Aster Family Cirsium undulatum var. undulatum - Asteraceae/Aster Family Coreopsis nuecensoides (Rio Grande tickseed) - Asteraceae/Aster Family Croptilon hookerianum var. validum - Asteraceae/Aster Family Echinacea angustifolia (blacksamson echinacea) - Asteraceae/Aster Family Erechtites hieraciifolia var. hieraciifolia - Asteraceae/Aster Family Erigeron flagellaris (trailing fleabane) - Asteraceae/Aster Family Eupatorium semiserratum (smallflower thoroughwort) - Asteraceae/Aster Family Flaveria campestris (alkali yellowtops) - Asteraceae/Aster Family Gaillardia aestivalis var. flavovirens - Asteraceae/Aster Family Gaillardia coahuilensis (bandanna daisy) - Asteraceae/Aster Family Gaillardia suavis (perfumeballs) - Asteraceae/Aster Family Grindelia microcephala (littlehead gumweed) - Asteraceae/Aster Family Grindelia papposa (Spanish gold) - Asteraceae/Aster Family Grindelia squarrosa (curlycup gumweed) - Asteraceae/Aster Family Gutierrezia texana var. glutinosa (sticky snakeweed) - Asteraceae/Aster Family Hedypnois cretica (Cretanweed) - Asteraceae/Aster Family Helianthus angustifolius (swamp sunflower) - Asteraceae/Aster Family Helianthus laciniatus (alkali sunflower) - Asteraceae/Aster Family Helianthus occidentalis ssp. plantagineus - Asteraceae/Aster Family Hieracium schultzii (roughstem hawkweed) - Asteraceae/Aster Family Hymenopappus artemisiifolius (oldplainsman) - Asteraceae/Aster Family Hypochaeris microcephala var. albiflora - Asteraceae/Aster Family Isocoma coronopifolia (common goldenbush) - Asteraceae/Aster Family Liatris squarrosa var. squarrosa - Asteraceae/Aster Family Machaeranthera pinnatifida ssp. pinnatifida var. glaberrima - Asteraceae/Aster Family Malacothrix sonorae (Sonoran desertdandelion) - Asteraceae/Aster Family Palafoxia sphacelata (othake) - Asteraceae/Aster Family Parthenium argentatum (guayule) - Asteraceae/Aster Family Perityle parryi (Parry's rockdaisy) - Asteraceae/Aster Family Pityopsis graminifolia var. latifolia - Asteraceae/Aster Family Porophyllum greggii (Gregg's poreleaf) - Asteraceae/Aster Family Porophyllum ruderale (yerba porosa) - Asteraceae/Aster Family Pseudognaphalium arizonicum (Arizona cudweed) - Asteraceae/Aster Family Pseudognaphalium viscosum (winged cudweed) - Asteraceae/Aster Family Psilactis tenuis (slender tansyaster) - Asteraceae/Aster Family Sanvitalia ocymoides (yellow creeping zinnia) - Asteraceae/Aster Family Sartwellia flaveriae (threadleaf glowwort) - Asteraceae/Aster Family Senecio vulgaris (old-man-in-the-Spring) - Asteraceae/Aster Family Solidago nemoralis (gray goldenrod) - Asteraceae/Aster Family Solidago stricta (wand goldenrod) - Asteraceae/Aster Family Symphyotrichum dumosum (rice button aster) - Asteraceae/Aster Family Symphyotrichum lateriflorum (calico aster) - Asteraceae/Aster Family Symphyotrichum oblongifolium (aromatic aster) - Asteraceae/Aster Family Symphyotrichum patens var. patens - Asteraceae/Aster Family Taraxacum laevigatum (rock dandelion) - Asteraceae/Aster Family Thelesperma nuecense (Rio Grande greenthread) - Asteraceae/Aster Family Vernonia baldwinii ssp. interior (interior ironweed) - Asteraceae/Aster Family Vernonia lindheimeri (woolly ironweed) - Asteraceae/Aster Family Campsis radicans (trumpet creeper) - Bignoniaceae/Trumpet-creeper Family Lappula occidentalis var. occidentalis - Boraginaceae/Borage Family Tiquilia canescens (woody crinklemat) - Boraginaceae/Borage Family Tournefortia volubilis (twining soldierbush) - Boraginaceae/Borage Family Cardamine macrocarpa (largeseed bittercress) - Brassicaceae/Mustard Family Draba standleyi (Standley's draba) - Brassicaceae/Mustard Family Lepidium alyssoides (mesa pepperwort) - Brassicaceae/Mustard Family Lepidium densiflorum var. densiflorum - Brassicaceae/Mustard Family Lepidium virginicum (Virginia pepperweed) - Brassicaceae/Mustard Family Lesquerella argyraea (silver bladderpod) - Brassicaceae/Mustard Family Lesquerella lasiocarpa var. lasiocarpa - Brassicaceae/Mustard Family Lesquerella lindheimeri (Lindheimer's bladderpod) - Brassicaceae/Mustard Family Lesquerella sessilis (sessile bladderpod) - Brassicaceae/Mustard Family Rorippa teres (southern marsh yellowcress) - Brassicaceae/Mustard Family Sibara virginica (Virginia winged rockcress) - Brassicaceae/Mustard Family Burmannia capitata (southern bluethread) - Burmanniaceae/Burmannia Family Coryphantha robustispina ssp. uncinata (Scheer's beehive cactus) - Cactaceae/Cactus Family Echinocereus coccineus (scarlet hedgehog cactus) - Cactaceae/Cactus Family Echinocereus coccineus var. gurneyi (Gurney's hedgehog cactus) - Cactaceae/Cactus Family Echinocereus papillosus var. angusticeps - Cactaceae/Cactus Family Echinocereus viridiflorus (nylon hedgehog cactus) - Cactaceae/Cactus Family Echinocereus viridiflorus var. cylindricus - Cactaceae/Cactus Family Echinomastus intertextus (white fishhook cactus) - Cactaceae/Cactus Family Mammillaria heyderi (little nipple cactus) - Cactaceae/Cactus Family Peniocereus greggii (nightblooming cereus) - Cactaceae/Cactus Family Callitriche terrestris (terrestrial water-starwort) - Callitrichaceae/Water-starwort Family Lobelia appendiculata var. appendiculata - Campanulaceae/Bellflower Family Lobelia spicata (palespike lobelia) - Campanulaceae/Bellflower Family Lonicera japonica (Japanese honeysuckle) - Caprifoliaceae/Honeysuckle Family Triosteum perfoliatum (feverwort) - Caprifoliaceae/Honeysuckle Family Arenaria fendleri (Fendler's sandwort) - Caryophyllaceae/Pink Family Loeflingia squarrosa (spreading pygmyleaf) - Caryophyllaceae/Pink Family Saponaria officinalis (bouncingbet) - Caryophyllaceae/Pink Family Mortonia sempervirens (Rio Grande saddlebush) - Celastraceae/Bittersweet Family Atriplex argentea (silverscale saltbush) - Chenopodiaceae/Goosefoot Family Chenopodium album (lambsquarters) - Chenopodiaceae/Goosefoot Family Chenopodium glaucum (oakleaf goosefoot) - Chenopodiaceae/Goosefoot Family Chenopodium neomexicanum (New Mexico goosefoot) - Chenopodiaceae/Goosefoot Family Suaeda suffrutescens (desert seepweed) - Chenopodiaceae/Goosefoot Family Lechea san-sabeana (San Saba pinweed) - Cistaceae/Rock-rose Family Clethra alnifolia (coastal sweetpepperbush) - Clethraceae/Clethra Family Hypericum sphaerocarpum (roundseed St. Johnswort) - Clusiaceae/Mangosteen Family Evolvulus alsinoides var. angustifolius - Convolvulaceae/Morning-glory Family Ipomoea wrightii (Wright's morning-glory) - Convolvulaceae/Morning-glory Family Cornus drummondii (roughleaf dogwood) - Cornaceae/Dogwood Family Sedum nanifolium (dwarf stonecrop) - Crassulaceae/Stonecrop Family Sedum pulchellum (widowscross) - Crassulaceae/Stonecrop Family Glossopetalon spinescens var. spinescens - Crossosomataceae/Crossosoma Family Ibervillea tenuisecta (slimlobe globeberry) - Cucurbitaceae/Cucumber Family Juniperus virginiana var. virginiana - Cupressaceae/Cypress Family Cuscuta applanata (Gila River dodder) - Cuscutaceae/Dodder Family Cuscuta exaltata (tall dodder) - Cuscutaceae/Dodder Family Cuscuta pentagona var. glabrior (bushclover dodder) - Cuscutaceae/Dodder Family Bulbostylis capillaris (densetuft hairsedge) - Cyperaceae/Sedge Family Carex arkansana (Arkansas sedge) - Cyperaceae/Sedge Family Carex complanata (hirsute sedge) - Cyperaceae/Sedge Family Carex flaccosperma (thinfruit sedge) - Cyperaceae/Sedge Family Carex hyalina (tissue sedge) - Cyperaceae/Sedge Family Carex hyalinolepis (shoreline sedge) - Cyperaceae/Sedge Family Carex mesochorea (midland sedge) - Cyperaceae/Sedge Family Carex oxylepis var. oxylepis - Cyperaceae/Sedge Family Cyperus lentiginosus (Latin American flatsedge) - Cyperaceae/Sedge Family Cyperus polystachyos (manyspike flatsedge) - Cyperaceae/Sedge Family Cyperus squarrosus (bearded flatsedge) - Cyperaceae/Sedge Family Cyperus surinamensis (tropical flatsedge) - Cyperaceae/Sedge Family Eleocharis cylindrica (cylinder spikerush) - Cyperaceae/Sedge Family Eleocharis radicans (rooted spikerush) - Cyperaceae/Sedge Family Fimbristylis dichotoma (forked fimbry) - Cyperaceae/Sedge Family Fimbristylis littoralis (fimbry) - Cyperaceae/Sedge Family Fuirena breviseta (saltmarsh umbrella-sedge) - Cyperaceae/Sedge Family Rhynchospora corniculata (shortbristle horned beaksedge) - Cyperaceae/Sedge Family Rhynchospora macra (large beaksedge) - Cyperaceae/Sedge Family Schoenoplectus erectus (sharpscale bulrush) - Cyperaceae/Sedge Family Schoenoplectus erectus ssp. raynalii - Cyperaceae/Sedge Family Schoenoplectus tabernaemontani (softstem bulrush) - Cyperaceae/Sedge Family Scirpus pallidus (cloaked bulrush) - Cyperaceae/Sedge Family Pteridium aquilinum (western brackenfern) - Dennstaedtiaceae/Bracken Fern Family Dryopteris filix-mas (male fern) - Dryopteridaceae/Wood Fern Family Dryopteris ludoviciana (southern woodfern) - Dryopteridaceae/Wood Fern Family Onoclea sensibilis (sensitive fern) - Dryopteridaceae/Wood Fern Family Polystichum acrostichoides (Christmas fern) - Dryopteridaceae/Wood Fern Family Eubotrys racemosa (swamp doghobble) - Ericaceae/Heath Family Lyonia mariana (piedmont staggerbush) - Ericaceae/Heath Family Acalypha radians (cardinal's feather) - Euphorbiaceae/Spurge Family Chamaesyce arizonica (Arizona sandmat) - Euphorbiaceae/Spurge Family Chamaesyce hyssopifolia (hyssopleaf sandmat) - Euphorbiaceae/Spurge Family Chamaesyce maculata (spotted sandmat) - Euphorbiaceae/Spurge Family Chamaesyce revoluta (threadstem sandmat) - Euphorbiaceae/Spurge Family Croton glandulosus var. septentrionalis - Euphorbiaceae/Spurge Family Croton lindheimerianus var. tharpii (Tharp's croton) - Euphorbiaceae/Spurge Family Croton pottsii (leatherweed) - Euphorbiaceae/Spurge Family Croton willdenowii (Willdenow's croton) - Euphorbiaceae/Spurge Family Euphorbia corollata (flowering spurge) - Euphorbiaceae/Spurge Family Phyllanthus ericoides (heather leaf-flower) - Euphorbiaceae/Spurge Family Phyllanthus tenellus (Mascarene Island leaf-flower) - Euphorbiaceae/Spurge Family Acacia constricta (whitethorn acacia) - Fabaceae/Pea Family Albizia lebbeck (woman's tongue) - Fabaceae/Pea Family Astragalus emoryanus var. emoryanus - Fabaceae/Pea Family Astragalus humistratus var. humistratus - Fabaceae/Pea Family Calliandra humilis var. humilis - Fabaceae/Pea Family Dalea candida var. candida - Fabaceae/Pea Family Dalea neomexicana var. longipila - Fabaceae/Pea Family Dalea purpurea var. arenicola - Fabaceae/Pea Family Dalea scandens (low prairie clover) - Fabaceae/Pea Family Dalea tenuis (pinkglobe prairie clover) - Fabaceae/Pea Family Desmanthus glandulosus (glandular bundleflower) - Fabaceae/Pea Family Desmodium sessilifolium (sessileleaf ticktrefoil) - Fabaceae/Pea Family Lespedeza hirta ssp. hirta - Fabaceae/Pea Family Lespedeza repens (creeping lespedeza) - Fabaceae/Pea Family Lespedeza texana (Texas lespedeza) - Fabaceae/Pea Family Mimosa roemeriana (Roemer's mimosa) - Fabaceae/Pea Family Neptunia pubescens var. pubescens - Fabaceae/Pea Family Orbexilum pedunculatum (Sampson's snakeroot) - Fabaceae/Pea Family Pomaria jamesii (James' holdback) - Fabaceae/Pea Family Prosopis reptans (tornillo) - Fabaceae/Pea Family Senna pendula (valamuerto) - Fabaceae/Pea Family Senna pumilio (dwarf senna) - Fabaceae/Pea Family Senna wislizeni (Wislizenus' senna) - Fabaceae/Pea Family Sesbania herbacea (bigpod sesbania) - Fabaceae/Pea Family Sesbania punicea (rattlebox) - Fabaceae/Pea Family Sophora gypsophila var. guadalupensis - Fabaceae/Pea Family Tephrosia potosina (Edwards Plateau hoarypea) - Fabaceae/Pea Family Vicia americana (American vetch) - Fabaceae/Pea Family Vicia americana ssp. minor (mat vetch) - Fabaceae/Pea Family Vicia sativa ssp. nigra - Fabaceae/Pea Family Vigna unguiculata (blackeyed pea) - Fabaceae/Pea Family Wisteria frutescens (kentucky wisteria) - Fabaceae/Pea Family Quercus margarettiae (runner oak) - Fagaceae/Beech Family Garrya ovata (eggleaf silktassel) - Garryaceae/Silk Tassel Family Centaurium beyrichii (quinineweed) - Gentianaceae/Gentian Family Ribes aureum var. villosum - Grossulariaceae/Currant Family Ribes curvatum (granite gooseberry) - Grossulariaceae/Currant Family Myriophyllum heterophyllum (twoleaf watermilfoil) - Haloragaceae/Water Milfoil Family Liquidambar styraciflua (sweetgum) - Hamamelidaceae/Witch-hazel Family Aesculus glabra var. arguta - Hippocastanaceae/Horse-chestnut Family Limnobium spongia (American spongeplant) - Hydrocharitaceae/Tape-grass Family Thalassia testudinum (turtlegrass) - Hydrocharitaceae/Tape-grass Family Nama stevensii (Stevens' fiddleleaf) - Hydrophyllaceae/Waterleaf Family Phacelia integrifolia (gypsum phacelia) - Hydrophyllaceae/Waterleaf Family Iris hexagona var. flexicaulis - Iridaceae/Iris Family Sisyrinchium rosulatum (annual blue-eyed grass) - Iridaceae/Iris Family Juncus polycephalus (manyhead rush) - Juncaceae/Rush Family Juncus tenuis (poverty rush) - Juncaceae/Rush Family Clinopodium brownei (Browne's savory) - Lamiaceae/Mint Family Hedeoma mollis (softhair false pennyroyal) - Lamiaceae/Mint Family Mentha spicata (spearmint) - Lamiaceae/Mint Family Monarda punctata ssp. punctata - Lamiaceae/Mint Family Physostegia digitalis (finger false dragonhead) - Lamiaceae/Mint Family Prunella vulgaris ssp. lanceolata (lance selfheal) - Lamiaceae/Mint Family Salvia lyrata (lyreleaf sage) - Lamiaceae/Mint Family Trichostema dichotomum (forked bluecurls) - Lamiaceae/Mint Family Persea palustris (swamp bay) - Lauraceae/Laurel Family Allium canadense (meadow garlic) - Liliaceae/Lily Family Echeandia texensis (Texas craglily) - Liliaceae/Lily Family Erythronium mesochoreum (midland fawnlily) - Liliaceae/Lily Family Narcissus tazetta (cream narcissus) - Liliaceae/Lily Family Trillium viridescens (tapertip wakerobin) - Liliaceae/Lily Family Tristagma uniflorum (springstar) - Liliaceae/Lily Family Zephyranthes refugiensis (refugio zephyrlily) - Liliaceae/Lily Family Mentzelia albicaulis (whitestem blazingstar) - Loasaceae/Loasa Family Mentzelia montana (variegated-bract blazingstar) - Loasaceae/Loasa Family Heimia salicifolia (shrubby yellowcrest) - Lythraceae/Loosestrife Family Lythrum alatum var. lanceolatum - Lythraceae/Loosestrife Family Abutilon hulseanum (mauve) - Malvaceae/Mallow Family Allowissadula holosericea (Chisos Mountain false Indianmallow) - Malvaceae/Mallow Family Anoda pentaschista (field anoda) - Malvaceae/Mallow Family Bastardia viscosa (viscid mallow) - Malvaceae/Mallow Family Hibiscus aculeatus (comfortroot) - Malvaceae/Mallow Family Hibiscus syriacus (rose of Sharon) - Malvaceae/Mallow Family Sphaeralcea coccinea (scarlet globemallow) - Malvaceae/Mallow Family Sphaeralcea leptophylla (scaly globemallow) - Malvaceae/Mallow Family Sphaeralcea pedatifida (palmleaf globemallow) - Malvaceae/Mallow Family Mayaca fluviatilis (stream bogmoss) - Mayacaceae/Mayaca Family Rhexia virginica (handsome Harry) - Melastomataceae/Melastome Family Melia azedarach (Chinaberrytree) - Meliaceae/Mahogany Family Najas marina (spiny naiad) - Najadaceae/Water-nymph Family Abronia fragrans (snowball sand verbena) - Nyctaginaceae/Four o'clock Family Abronia macrocarpa (largefruit sand verbena) - Nyctaginaceae/Four o'clock Family Acleisanthes anisophylla (obliqueleaf trumpets) - Nyctaginaceae/Four o'clock Family Mirabilis gigantea (giant four o'clock) - Nyctaginaceae/Four o'clock Family Forestiera angustifolia (Texas swampprivet) - Oleaceae/Olive Family Ligustrum quihoui (waxyleaf privet) - Oleaceae/Olive Family Ludwigia grandiflora (large-flower primrose-willow) - Onagraceae/Evening Primrose Family Oenothera elata ssp. hirsutissima - Onagraceae/Evening Primrose Family Cypripedium kentuckiense (Kentucky lady's slipper) - Orchidaceae/Orchid Family Epipactis gigantea (stream orchid) - Orchidaceae/Orchid Family Platanthera cristata (crested yellow orchid) - Orchidaceae/Orchid Family Platanthera integra (yellow fringeless orchid) - Orchidaceae/Orchid Family Spiranthes longilabris (giantspiral lady's tresses) - Orchidaceae/Orchid Family Spiranthes magnicamporum (Great Plains lady's tresses) - Orchidaceae/Orchid Family Argemone mexicana (Mexican pricklypoppy) - Papaveraceae/Poppy Family Passiflora lutea (yellow passionflower) - Passifloraceae/Passion-flower Family Proboscidea althaeifolia (desert unicorn-plant) - Pedaliaceae/Sesame Family Agrostis hyemalis (winter bentgrass) - Poaceae/Grass Family Aira caryophyllea var. caryophyllea - Poaceae/Grass Family Andropogon gyrans (Elliott's bluestem) - Poaceae/Grass Family Anthaenantia rufa (purple silkyscale) - Poaceae/Grass Family Arundinaria gigantea (giant cane) - Poaceae/Grass Family Bothriochloa exaristata (awnless beardgrass) - Poaceae/Grass Family Bothriochloa springfieldii (Springfield's beardgrass) - Poaceae/Grass Family Bouteloua dactyloides (buffalograss) - Poaceae/Grass Family Brachyelytrum erectum (bearded shorthusk) - Poaceae/Grass Family Bromus ciliatus var. richardsonii - Poaceae/Grass Family Bromus lanatipes (woolly brome) - Poaceae/Grass Family Chloris texensis (Texas windmill grass) - Poaceae/Grass Family Chloris virgata (feather fingergrass) - Poaceae/Grass Family Dichanthelium dichotomum var. dichotomum - Poaceae/Grass Family Elymus elymoides (squirreltail) - Poaceae/Grass Family Elymus elymoides ssp. brevifolius - Poaceae/Grass Family Enteropogon chlorideus (buryseed umbrellagrass) - Poaceae/Grass Family Eragrostis palmeri (Rio Grande lovegrass) - Poaceae/Grass Family Erioneuron nealleyi (Nealley's woollygrass) - Poaceae/Grass Family Eustachys distichophylla (weeping fingergrass) - Poaceae/Grass Family Festuca rubra ssp. rubra - Poaceae/Grass Family Hainardia cylindrica (barbgrass) - Poaceae/Grass Family Hemarthria altissima (limpograss) - Poaceae/Grass Family Hordeum jubatum (foxtail barley) - Poaceae/Grass Family Muhlenbergia glabriflora (inland muhly) - Poaceae/Grass Family Muhlenbergia porteri (bush muhly) - Poaceae/Grass Family Panicum rigidulum var. pubescens - Poaceae/Grass Family Panicum verrucosum (warty panicgrass) - Poaceae/Grass Family Parapholis incurva (curved sicklegrass) - Poaceae/Grass Family Paspalum convexum (Latin American crowngrass) - Poaceae/Grass Family Paspalum minus (matted paspalum) - Poaceae/Grass Family Paspalum plicatulum (brownseed paspalum) - Poaceae/Grass Family Phalaris aquatica (bulbous canarygrass) - Poaceae/Grass Family Piptochaetium avenaceum (blackseed speargrass) - Poaceae/Grass Family Poa strictiramea (Big Bend bluegrass) - Poaceae/Grass Family Redfieldia flexuosa (blowout grass) - Poaceae/Grass Family Setaria reverchonii ssp. firmula (knot grass) - Poaceae/Grass Family Setaria texana (Texas bristlegrass) - Poaceae/Grass Family Sporobolus nealleyi (gyp dropseed) - Poaceae/Grass Family Trachypogon spicatus (spiked crinkleawn) - Poaceae/Grass Family Urochloa ciliatissima (fringed signalgrass) - Poaceae/Grass Family Urochloa mutica (para grass) - Poaceae/Grass Family Vulpia elliotea (squirreltail fescue) - Poaceae/Grass Family Zea mays (corn) - Poaceae/Grass Family Giliastrum rigidulum (bluebowls) - Polemoniaceae/Phlox Family Ipomopsis havardii (Havard's ipomopsis) - Polemoniaceae/Phlox Family Ipomopsis wrightii (leafy skyrocket) - Polemoniaceae/Phlox Family Linanthus bigelovii (Bigelow's linanthus) - Polemoniaceae/Phlox Family Loeseliastrum schottii (Schott's calico) - Polemoniaceae/Phlox Family Phlox cuspidata (pointed phlox) - Polemoniaceae/Phlox Family Phlox drummondii ssp. tharpii (Tharp's phlox) - Polemoniaceae/Phlox Family Polygala palmeri (Palmer's milkwort) - Polygalaceae/Milkwort Family Polygonum hydropiperoides (swamp smartweed) - Polygonaceae/Buckwheat Family Polygonum virginianum (jumpseed) - Polygonaceae/Buckwheat Family Pleopeltis riograndensis (Rio Grande scaly polypody) - Polypodiaceae/Polypody Family Phemeranthus calycinus (largeflower fameflower) - Portulacaceae/Purslane Family Portulaca oleracea (little hogweed) - Portulacaceae/Purslane Family Portulaca umbraticola (wingpod purslane) - Portulacaceae/Purslane Family Potamogeton crispus (curly pondweed) - Potamogetonaceae/Pondweed Family Samolus valerandi ssp. parviflorus - Primulaceae/Primrose Family Psilotum nudum (whisk fern) - Psilotaceae/Whisk-fern Family Astrolepis sinuata ssp. sinuata - Pteridaceae/Maidenhair Fern Family Cheilanthes wrightii (Wright's lipfern) - Pteridaceae/Maidenhair Fern Family Notholaena grayi (Gray's cloak fern) - Pteridaceae/Maidenhair Fern Family Notholaena nealleyi (Nealley's cloak fern) - Pteridaceae/Maidenhair Fern Family Pellaea intermedia (intermediate cliffbrake) - Pteridaceae/Maidenhair Fern Family Anemone berlandieri (tenpetal thimbleweed) - Ranunculaceae/Buttercup Family Clematis virginiana (devil's darning needles) - Ranunculaceae/Buttercup Family Consolida orientalis (Oriental knight's-spur) - Ranunculaceae/Buttercup Family Delphinium carolinianum (Carolina larkspur) - Ranunculaceae/Buttercup Family Delphinium carolinianum ssp. vimineum - Ranunculaceae/Buttercup Family Thalictrum dasycarpum (purple meadow-rue) - Ranunculaceae/Buttercup Family Ziziphus obtusifolia var. obtusifolia - Rhamnaceae/Buckthorn Family Crataegus engelmannii (Engelmann's hawthorn) - Rosaceae/Rose Family Crataegus texana (Texas hawthorn) - Rosaceae/Rose Family Crataegus viridis (green hawthorn) - Rosaceae/Rose Family Petrophyton caespitosum var. caespitosum - Rosaceae/Rose Family Physocarpus monogynus (mountain ninebark) - Rosaceae/Rose Family Prunus virginiana (chokecherry) - Rosaceae/Rose Family Rosa stellata (desert rose) - Rosaceae/Rose Family Cephalanthus salicifolius (Mexican buttonbush) - Rubiaceae/Madder Family Galium circaezans (licorice bedstraw) - Rubiaceae/Madder Family Galium pilosum (hairy bedstraw) - Rubiaceae/Madder Family Houstonia humifusa (matted bluet) - Rubiaceae/Madder Family Houstonia parviflora (Greenman's bluet) - Rubiaceae/Madder Family Spermacoce tenuior (slender false buttonweed) - Rubiaceae/Madder Family Populus deltoides ssp. deltoides - Salicaceae/Willow Family Salix exigua (narrowleaf willow) - Salicaceae/Willow Family Salix humilis var. humilis - Salicaceae/Willow Family Salix lasiolepis var. lasiolepis - Salicaceae/Willow Family Salix taxifolia (yewleaf willow) - Salicaceae/Willow Family Sideroxylon lanuginosum ssp. rigidum - Sapotaceae/Sapodilla Family Agalinis auriculata (earleaf false foxglove) - Scrophulariaceae/Figwort Family Agalinis heterophylla (prairie false foxglove) - Scrophulariaceae/Figwort Family Agalinis maritima (saltmarsh false foxglove) - Scrophulariaceae/Figwort Family Lindernia dubia (yellowseed false pimpernel) - Scrophulariaceae/Figwort Family Mazus pumilus (Japanese mazus) - Scrophulariaceae/Figwort Family Micranthemum umbrosum (shade mudflower) - Scrophulariaceae/Figwort Family Mimulus rubellus (little redstem monkeyflower) - Scrophulariaceae/Figwort Family Penstemon ramosus (lanceleaf beardtongue) - Scrophulariaceae/Figwort Family Penstemon wrightii (Wright's beardtongue) - Scrophulariaceae/Figwort Family Selaginella rupincola (rockloving spikemoss) - Selaginellaceae/Spike-moss Family Smilax pumila (sarsparilla vine) - Smilacaceae/Catbrier Family Lycium berlandieri var. berlandieri - Solanaceae/Potato Family Physalis cinerascens var. spathulifolia - Solanaceae/Potato Family Physalis subulata (Chihuahuan groundcherry) - Solanaceae/Potato Family Solanum americanum (American black nightshade) - Solanaceae/Potato Family Solanum rostratum (buffalobur nightshade) - Solanaceae/Potato Family Solanum sisymbriifolium (sticky nightshade) - Solanaceae/Potato Family Solanum triquetrum (Texas nightshade) - Solanaceae/Potato Family Sparganium americanum (American bur-reed) - Sparganiaceae/Bur-reed Family Ayenia microphylla (dense ayenia) - Sterculiaceae/Cacao Family Melochia corchorifolia (chocolateweed) - Sterculiaceae/Cacao Family Waltheria indica (uhaloa) - Sterculiaceae/Cacao Family Thelypteris hispidula (roughhairy maiden fern) - Thelypteridaceae/Marsh Fern Family Celtis laevigata var. laevigata - Ulmaceae/Elm Family Aloysia gratissima var. gratissima - Verbenaceae/Verbena Family Duranta erecta (golden dewdrops) - Verbenaceae/Verbena Family Lantana montevidensis (trailing shrubverbena) - Verbenaceae/Verbena Family Phyla lanceolata (lanceleaf fogfruit) - Verbenaceae/Verbena Family Priva lappulacea (catstongue) - Verbenaceae/Verbena Family Verbena bracteata (bigbract verbena) - Verbenaceae/Verbena Family Verbena cloverae (Clover's vervain) - Verbenaceae/Verbena Family Verbena hastata (swamp verbena) - Verbenaceae/Verbena Family Arceuthobium vaginatum (pineland dwarf mistletoe) - Viscaceae/Christmas Mistletoe Family Vitis aestivalis (summer grape) - Vitaceae/Grape Family Vitis mustangensis (mustang grape) - Vitaceae/Grape Family Vitis rupestris (sand grape) - Vitaceae/Grape Family Xyris laxifolia var. iridifolia (irisleaf yelloweyed grass) - Xyridaceae/Yellow-eyed Grass Family Guajacum angustifolium (Texas lignum-vitae) - Zygophyllaceae/Creosote-bush Family

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