Achillea millefolium
Yarrow

Acleisanthes longiflora
Angel’s Trumpets

Acleisanthes wrightii
Wright’s Trumpets

Ageratina havanensis
Shrubby Boneset

Ageratina wrightii
Wright’s Snakeroot

Allium canadense var. canadense
Meadow Garlic

Allium canadense var. fraseri
Fraser Meadow Garlic

Aloysia gratissima var. gratissima
Beebrush

Aloysia gratissima var. schulziae
Beebrush

Aloysia wrightii
Wright’s Beebrush

Amaranthus palmeri
Palmer’s Amaranth

Ambrosia monogyra
Single-whorl Burro-brush

Amsonia ciliata
Texas Bluestar

Amsonia longiflora
Tubular Bluestar

Amsonia palmeri
Palmer's Bluestar

Anemone berlandieri
Ten-petal Anemone

Antennaria parlini
Parlin’s Pussytoes

Aphanostephus ramosissimus
Plains Dozedaisy

Aphanostephus skirrhobasis
Arkansas Dozedaisy

Arbutus xalapensis
Texas Madrone

Argemone albiflora
White Prickly Poppy

Argemone aurantiaca
Texas Prickly Poppy

Argemone chisosensis
Chisos Mountains Prickly Poppy

Argemone polyanthemos
Crested Prickly Poppy

Argemone squarrosa
Hedgehog Prickly Poppy

Asclepias asperula
Antelope Horns

Asclepias emoryi
Emory’s Milkweed

Asclepias oenotheroides
Zizotes Milkweed

Astragalus crassicarpus var. berlandieri
Groundplum Milkvetch

Baccharis halimifolia
Eastern Baccharis

Baccharis neglecta
Poverty Weed

Baccharis salicifolia
Mule Fat

Bauhunia lunarioides
Anacacho Orchid Tree

Bellardia trixago
Mediterranean Lineseed

Bidens bigelovii
Bidens Beggarticks

Bifora americana
Prairie Bishop’s-weed

Bouchetia anomala
Painted-tongue

Bouteloua curtipendula
Sideoats Grama

Bouteloua dactyloides
Buffalo Grass

Buglossoides arvensis
Corn Gromwell

Callicarpa americana
American Beautyberry

Capsella bursa-pastoris
Shepherd’s-purse

Capsicum annum var. glabriusculum
Cayenne Pepper

Cardiospermum halicacabum
Balloon-vine

Carex emoryi
Emory’s Sedge

Carphochaete bigelovii
Bigelow’s Bristehead

Cephalanthus occidentalis
Buttonbush

Cerastium glomeratum
Sticky Chickweed

Chaerophyllum tainturieri
Chervil

Chaetopappa asteroides
Least Daisy

Chaetopappa ericoides
Rose Heath

Chamaesaracha coniodes
False Nightshade

Chamaesaracha sordida
Hairy False Nightshade

Chamaesaracha villosa
Woolly False Nightshade

Chaptalia texana
Silver Puff

Chionanthus virginicus
White Fringetree

Chlorocantha spinosa
Spiny Chlorocantha

Claytonia virginica
Virginia Springbeauty

Clematis drummondii
Old-man’s Beard

Clematis terniflora
Sweet Autumn Virgin’s-bower

Cnidnoscolus texanus
Bullnettle

Conium maculatum
Poison Hemlock

Convolvulus equitans
Texas Bindweed

Cordia boissieri
Texas Olive

Cornus drummondii
Roughleaf Dogwood

Cornus florida
Flowering Dogwood

Coursetia axillaris
Texas Babybonnets

Crinum bulbispermum
Hardy Swamp Lily

Croton glandulosus var. pubentissimus
Tropic Croton

Croton heptalon
Texas Woolly Croton

Croton lindheimeri
Hogwort

Croton monanthogynus
One-seed Croton

Croton pottsii var. pottsii
Leatherweed

Cryptantha crassipes
Terlingua Creek Catseye

Cryptantha crassisepala
Thicksepal Catseye

Cryptantha minima
Little Catseye

Cyclospermum leptophyllum
Marsh Parsley

Cyperus echinatus
Globe Flatsedge

Cyperus odoratus
Fragrant Flatsedge

Cyperus virens
Green Flatsedge

Dalea enneandra
Nine-anther Prairie Clover

Dalea obovata
Pussyfoot

Dalea pheleoides var. microphylla
Slim-spike Prairie Clover

Dasyochloa pulchella
Low Woollygrass

Datura wrightii
Jimson-weed

Daucus pusillus
American Wild Carrot

Delphinium carolinianum ssp. virescens
Prairie Larkspur

Desmanthus reticulatus
Netleaf Bundleflower

Desmodium tweedyi
Tweedy’s Ticktrefoil

Diaperia prolifera
Big-head Pygmy-cudweed

Diaperia verna
Spring Pygmy-cudweed

Digitaria californica
Arizona Cottontop

Dimorphocarpa cansicans
Palmer’s Spectacle Pod

Diodella teres
Rough Buttonweed

Diodia virginiana
Virginia Buttonweed

Dioscorea villosa
Wild Yam

Diospyros texana
Texas Persimmon

Eclipta prostrata
False Daisy

Erigeron annuus
Annual Fleabane

Erigeron modestus
Plains Fleabane

Erigeron philadelphicus
Philadelphia Fleabane

Erigeron pulchellus
Hairy Fleabane

Erigeron strigosus
Prairie Fleabane

Eriogonum annuum
Annual Buckwheat

Eriogonum jamesii var. undulatum
James’ Buckwheat

Eriogonum longifolium var. longifolium
Longleaf Buckwheat

Eriogonum multiflorum var. riograndis
Rio Grande Buckwheat

Eriogonum wrightii var. wrightii
Shrubby Buckwheat

Eupatorium serotinum
White Boneset

Euphorbia albomarginata
Rattlesnake Weed

Euphorbia capitellata
Head Sandmat

Euphorbia corollata
Flowering Spurge

Euphorbia dentata
Toothed Spurge

Euphorbia eriantha
Beetle Spurge

Euphorbia indivisa
Royal Sandmat

Euphorbia marginata
Snow-on-the-Mountain

Euphorbia simulans
Mimicking Sandmat

Evolvulus sericeus
Silver Dwarf Morning-glory

Eysenhardtia texana
Texas Kidneywood

Fallugia paradox
Apache Plume

Fraxinus cuspidata
Fragrant Ash

Froelichia gracilis
Slender Snake-cotton

Funastrum cynanchoides var. cynanchoides
Climbing Milkweed

Galium aparine
Stickywilly

Geranium carolinianum
Carolina Geranium

Geum canadense
White Avens

Glandularia quadrangulata
Beaked Mock Vervain

Gomphrena nealleyi
Nealley’s Globe Amaranth

Gonolobus suberosus var. granulatus
Anglepod Milkweed Vine

Guilleminea densa var. aggregata
Small Matweed

Hechtia texensis
Texas False Agave

Heliotropium confertifolium
Leafy Heliotrope

Heliotropium curassavicum
Seaside Heliotrope

Heliotropium procumbens
Four-spike Heliotrope

Heliotropium tenellum
White Heliotrope

Hibiscus laevis
Halberd-leaf Rosemallow

Hydrocotyle umbellata
Umbrella Pennyroyal

Hymenocallis liriosme
Spring Spiderlily

Hymenopappus artemisiifolius
Old Plainsman

Hymenopappus scabiosaeus var. corymbosus
Carolina Woollywhite

Hymenopappus tenuifolius
Chalk Hill Woollywhite

Ilex decidua
Possumhaw

Ilex vomitoria
Yaupon Holly

Ipomopsis longiflora
White-flowered Skyrocket

Iresine heterophylla
Stanley’s Bloodleaf

Iva annua
Annual Marsh Elder

Justicia americana
American Water-willow

Lantana achyranthifolia
Mejorana

Lepidium densiflorum
Common Peppergrass

Lepidium virginicum
Virginia Pepperweed

Lespedeza hirta
Hairy Lespedeza

Leucanthum vulgare
Oxeye Daisy

Lithospermum matamorense
Rough Stoneseed

Lonicera japonica
Japanese Honeysuckle

Lupinus texensis
Texas Bluebonnet (white)

Malvella sagittifolia
Arrowleaf Mallow

Marrubium vulgare
Horehound

Marshallia caespitosa
Barbara’s Buttons

Matelea reticulata
Green Milkweed Vine

Melampodium leucanthum
Blackfoot Daisy

Melia azedarach
Chinaberry Tree

Melica nitens
Three-flower Melic

Melilotus albus
White Sweet Clover

Mentzelia decapetala
Ten-petal Blazingstar

Metastelma barbigerum
Bearded Swallow-wort

Mikania skandens
Climbing Hempweed

Minuartia drummondii
Drummond’s Stitchwort

Minuartia muscorum
Dixie Stitchwort

Mirabilis albida
White Four O'clock

Mirabilis linearis
Narrow-leaf Four O'clock

Monarda clinopodioides
Basil Beebalm

Myosotis macrosperma
Marge-sedd Forget-me-not

Nandina domestica
Heavenly Bamboo

Nerisyrenia camporum
Bicolor Mustard

Nicolletia edwardsii
Hole-in-the-sand Plant

Nicotiana obtusifolia
Desert Tobacco

Nicotiana repanda
Fiddleleaf Tobacco

Nolina texana
Texas Beargrass

Nothoscordum bivalve
Crow Poison

Oenothera albicaulis
Whitest Evening Primrose

Oenothera boquillensis
Rio Grande Beeblossom

Oenothera kunthiana
Kunth’s Evening Primrose

Oenothera linheimeri
Lindheimer’s Beeblossom

Oenothera patriciae
Plains Beeblossom

Oenothera suffulta
Kisses

Oligomeris linifolia
Lineleaf Whitepuff

Onosmodium bejariense
False Gromwell

Parietaria pensylvanica
Pennsylvania Pellitory

Parthenium confertum
Gray’s Feverfew

Parthenium hysterophorus
Santa Maria Feverfew

Parthenium incanum
Mariola

Penstemon laxiflorum
Nodding Beardtongue

Penthorum sedoides
Ditch Stonecrop

Persea borbonia
Redbay

Persicaria hydropiperoides
Swamp Smartweed

Persicaria punctata
Dotted Smartweed

Phyla lanceolata
Northern Frog-fruit

Phyla nodiflora
Texas Frog-fruit

Physaria purpurea
White Bladderpod

Phytolacca americana
Americana Pokeweed

Pinaropappus roseus
White Rock-lettuce

Plantago helleri
Heller’s Plantain

Plantago lanceolata
Buckhorn Plantain

Plantago patagonica
Woolly Plantain

Plantago rhodosperma
Redseed Plantain

Plantago  wrightiana
Wright's Plantain

Podophyllum peltatum
May Apple

Polanisia dodecandra
Clammyweed

Polanisia uniglandulosa
Mexican Clammyweed

Polygala alba
White Milkwort

Polypogon monspieliensis
Annual Rabbit’s-foot Grass

Polypremum procumbens
Juniper Leaf

Prunus mexicana
Mexican Plum

Psathyrotopis scaposa
Naked Turtleback

Pseudognaphalium canescens
Wright’s Cudweed

Pseudognaphalium jaliscense
Jalisco Rabbit-tobacco

Pseudognaphalium obtusifolium
Rabbit-tobacco

Ptelea trifoliata
Wafer Ash

Rhus microphylla
Littleleaf Sumac

Rhynchospora colorata
White-top Sedge

Richardia brasiliensis
Tropical Mexican Clover

Rivina humilis
Pigeon-berry

Rosa bracteata
Macartney Rose

Rubus argutus
Saw-tooth Blackberry

Rubus trivialis
Southern Dewberry

Ruellia metzae
Metz’s Wild Petunia

Rumex altissimus
Pale Dock

Rumex crispus
Curly Dock

Rumex hastatulus
Heartwing Sorrel

Rumex hymenosepalus
Canaigre Dock

Rumex pulcher
Fiddle Dock

Sabal minor
Dwarf Palmetto

Salsola tragus
Russian Thistle

Samolus ebracteatus
Limewater Brookweed

Sanicula canadensis
Canadian Black-snakeroot

Selaginella lepidophylla
Flower of Stone

Senegalia berlandieri
Guajillo

Senegalia greggii
Catclaw Acacia

Sisyrinchium rosulatum
Annual Blue-eyed Grass

Smilax bona-nox
Saw Greenbrier

Smilax rotundifolia
Roundleaf Greenbrier

Solanum ptychanthum
West Indian Nightshade

Solanum triquetrum
Texas Nightshade

Spiranthes magnicamporum
Great Plains Lady’s Tresses

Spiranthes lacera var. gracilis
Southern Slender Lady’s Tresses

Spiranthes vernalis,
Spring Lady’s Tresses

Stenaria nigricans. var. nigricans
Diamondflowers

Stillingia sylvatica
Queen’s Delight

Stillingia texana
Texas Toothleaf

Streptanthus petiolaris
Brazos Rockcress

Symphyotrichum drummondii var. texanum
Texas Aster

Symphyotrichum dumosum var. dumosum
Rice Button Aster

Symphyotrichum ericoides var. ericoides
White Heath Aster

Symphyotrichum eulae
Texas Aster

Symphyotrichum subulatum var. ligulatum
Southern Annual Saltmarsh Aster

Tephrosia onobrychoides
Multi-bloom Hoary Pea

Teucrium coahuilianum
Coahuila Germander

Teucrium cubense
Small Coastal Germander

Teucrium depressum
Desert Teucrium

Teucrium laciniatum
Cut-leaf Germander

Torilis arvensis
Hedge Parsley

Toxicodendron pubescens
Atlantic Poison Oak

Tradescantia gigantea
Giant Spiderwort

Trepocarpus aethusae
Whitenymph

Triadica sebifera
Chinese Tallow

Trichloris crinita
False Rhodes Grass

Vavvinium arboreum
Farkleberry

Valerianella amarella
Hairy Cornsalad

Valerianella locusta
Common Cornsalad

Valerianella radiata
Beaked Cornsalad

Verbesina virginica
Frostweed

Viburnum nudum
Possumhaw

Viburnum rufidulum
Rusty Blackhaw

Vicia caroliniana
Carolina Vetch

Vicia hirsuta
Tiny Vetch

Vitis mustangensis
Mustang Grape

Yucca arkanana
Arkansas Yucca

Yucca constricta
Buckley's Yucca

Yucca elata
Soaptree Yucca

Yucca faxonia
Giant Dagger Yucca

Yucca rupicola
Texas Yucca

Yucca thompsoniana
Thompson Yucca

Yucca treculeana (Yucca torreyi)
Spanish Dagger Yucca

Zephyranthes drummondii
Hill Country Rain-lily

Zinnia acerosa
Desert Zinnia