Special Collections

South Texas Plains

The South Texas Plains lie south of a line from San Antonio to Del Rio. This area is the western extension of the Gulf Coastal Plains merging with the Mexico Plains on the west. The area is a nearly level to rolling, slightly to moderately dissected plain. Upland soils are of three groups: dark, clayey soils over firm clayey subsoils; grayish to reddish brown, loamy to sandy soils; and brown loamy soils. Gray, clayey, saline, and sodic soils are extensive on the coastal fringe, along with Galveston deep sands. Bottomlands are typically brown to gray, calcareous silt loams to clayey alluvial soils.

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scientific name	common name(s)	image gallery
Abronia fragrans	Fragrant verbena Sand verbena Snowball Snowball sand verbena Sweet sand-verbena	9 images
Abutilon fruticosum	Indian mallow Texas Indian mallow	7 images
Abutilon hypoleucum	Rio Grande abutilon White-leaf indian-mallow Whiteleaf Indian mallow	1 images
Acacia berlandieri	Guajillo Berlandier acacia Thornless Catclaw Mimosa Catclaw Round-flowered Catclaw Huajillla Matoral	5 images
Acacia farnesiana	Huisache Sweet acacia Mealy wattle	41 images
Achillea millefolium	Common yarrow Yarrow Milfoil Western yarrow	37 images
Acer negundo	Ash-leaf maple Ash-leaved maple Box elder Boxelder Fresno de guajuco	10 images
Acacia rigidula	Blackbrush acacia Blackbrush Catclaw Chaparro prieto Gavia	17 images
Acacia roemeriana	Roundflower catclaw Round-flower catclaw Roemer acacia Catclaw Roemer’s acacia Catclaw acacia	9 images
Acacia schaffneri var. bravoensis	Huisachillo Schaffner's wattle Twisted acacia	1 images
Agave americana	American century plant Century plant	3 images
Agave parryi ssp. parryi	Century plant Mescal Parry's agave Rough agave	6 images
Allium canadense var. canadense	Canada onion Meadow garlic Wild onion	9 images
Allium canadense var. mobilense	Meadow garlic Wild onion	5 images
Allium coryi	Yellow-flowered onion Yellowflower onion	4 images
Allium drummondii	Drummond's onion Wild Garlic Drummond wild onion	27 images
Aloysia gratissima	Whitebrush Bee-brush White-brush Common bee-brush Beebrush Privet lippia	15 images
Aloysia wrightii	Wright's beebrush Wright’s lippia	1 images
Ampelopsis arborea	Peppervine	21 images
Ampelopsis cordata	Heartleaf peppervine Heart-leaf ampelopsis	5 images
Amorpha fruticosa	Indigo bush False indigo bush False indigo Desert false indigo	18 images
Amsonia illustris	Ozark bluestar Showy blue-star Missouri blue star Swamp bluestar	5 images
Amyris texana	Chapotillo Texas torchwood	2 images
Andropogon gerardii	Big bluestem Turkeyfoot	24 images
Andropogon glomeratus	Bushy bluestem Brushy bluestem	31 images
Andropogon virginicus	Broomsedge bluestem Broom-sedge	3 images
Aphanostephus skirrhobasis	Lazy daisy Arkansas lazy daisy Arkansas dozedaisy	27 images
Argemone mexicana	Mexican pricklypoppy Mexican prickly poppy Yellow pricklypoppy	7 images
Aristolochia pentandra	Marsh's dutchman's pipe
Argemone sanguinea	Red prickly poppy Red pricklypoppy Rose prickly poppy	7 images
Avicennia germinans	Black mangrove
Bauhinia lunarioides	Anacacho orchid tree Anacacho bauhinia Orchid tree Texas plume	14 images
Batis maritima	Seaside saltwort Turtleweed
Baccharis neglecta	False Willow Jara dulce Poverty Weed Roosevelt Weed	27 images
Bothriochloa barbinodis	Cane bluestem	4 images
Bouteloua curtipendula	Sideoats grama	29 images
Bouteloua dactyloides	Buffalograss Buffalo grass	43 images
Borrichia frutescens	Bushy seaside tansy Bushy seaside-tansy Ox-eye daisy Sea daisy Sea ox-eye	3 images
Bouteloua hirsuta	Hairy grama	20 images
Bouteloua repens	Slender grama
Bouteloua rigidiseta	Texas grama	4 images
Bothriochloa saccharoides	Silver bluestem Longspike silver bluestem
Buddleja sessiliflora	Rio Grande butterflybush Tepozan
Capsicum annuum var. glabriusculum	Chile pequin Bird pepper Turkey pepper Cayenne pepper	7 images
Calliandra conferta	Rio Grande stickpea Fairy duster	3 images
Castela erecta ssp. texana	Allthorn goatbush Amargoso Goat-bush Texan goatbush	1 images
Calylophus hartwegii	Hartweg's sundrops Western Primrose	12 images
Carya illinoinensis	Pecan	20 images
Castilleja indivisa	Entireleaf indian paintbrush Texas paintbrush Indian paintbrush Scarlet paintbrush Entire-leaf indian-paintbrush	73 images
Callirhoe involucrata	Winecup Purple poppy mallow	38 images
Carex planostachys	Cedar sedge	3 images
Castilleja purpurea	Prairie paintbrush Downy Indian paintbrush Purple paintbrush Lemon paintbrush Purple painted cup	3 images
Campsis radicans	Trumpet creeper Trumpet vine Common trumpet creeper Cow vine	40 images
Ceanothus americanus	New Jersey tea Redroot	21 images
Centaurea americana	American star-thistle Basket-Flower Star thistle Shaving brush American basket-flower	58 images
Celtis ehrenbergiana	Desert hackberry Spiny hackberry Granjeno Shiny hackberry Huasteco	2 images
Celtis laevigata	Sugar hackberry Hackberry Sugarberry Texas sugarberry Palo blanco	7 images
Celtis laevigata var. reticulata	Netleaf hackberry Netleaf sugar hackberry Sugar Hackberry Texas Sugarberry Palo Blanco Acibuche	11 images
Cephalanthus occidentalis	Common buttonbush Buttonbush Button willow	26 images
Chiococca alba	West Indian milkberry David’s milkberry Cahinca Snowberry	4 images
Chamaecrista fasciculata	Partridge pea Sleepingplant Sensitive plant	15 images
Chasmanthium latifolium	Inland sea oats Indian wood oats Wild oats River oats Flathead oats Upland Oats Upland Sea Oats	25 images
Chromolaena odorata	Jack in the bush Fragrant boneset Fragrant mistflower Crucita Blue mistflower	5 images
Chloris virgata	Feather fingergrass Showy chloris	3 images
Citharexylum berlandieri	Berlandier's fiddlewood Berlandier fiddlewood Fiddlewood	3 images
Cirsium texanum	Texas thistle	28 images
Clematis drummondii	Drummond's clematis Old man’s beard Texas virgin’s bower Goat’s beard	36 images
Cladium mariscus ssp. jamaicense	Jamaica swamp sawgrass Jamaican Saw-grass Saw-grass	2 images
Cordia boissieri	Mexican olive Anacahuita Texas wild olive Anacahuite	18 images
Cocculus diversifolius	Correhuela Snailseed
Cornus drummondii	Roughleaf dogwood Drummond's dogwood Rough-leaf dogwood	30 images
Cooperia drummondii	Evening rain lily Evening star rain lily	32 images
Condalia hookeri	Bluewood condalia Brasil Brazilwood Brazilian bluewood	8 images
Coreopsis lanceolata	Lanceleaf coreopsis Lanceleaf tickseed Lance-leaved coreopsis Sand coreopsis	32 images
Coreopsis tinctoria	Plains coreopsis Golden tickseed Goldenwave Calliopsis	37 images
Croton alabamensis var. texensis	Texabama croton Texas Alabama croton	16 images
Crinum americanum	Crinum lily Seven sisters Swamp lily Southern swamp lily String lily	13 images
Datura wrightii	Sacred thorn-apple Jimsonweed Thorn apple Datura Angel Trumpet Sacred datura	34 images
Delphinium carolinianum ssp. vimineum	Carolina larkspur Prairie larkspur	2 images
Desmanthus illinoensis	Illinois bundleflower Bundleflower Prairie bundle flower Prickleweed Illinois Desmanthus Prairie mimosa	24 images
Digitaria californica	Arizona cottontop California cottontop California crab grass Cottontop
Diospyros texana	Texas persimmon Mexican persimmon Black persimmon Chapote Chapote prieto	39 images
Dracopis amplexicaulis	Clasping coneflower Clasping-leaf coneflower	43 images
Echeandia chandleri	Chandler's craglily Lila de los llanos	2 images
Elymus canadensis	Canada wild rye Canadian wildrye Prairie wildrye Nodding wildrye	19 images
Elionurus tripsacoides	Pan American balsamscale
Eriogonum annuum	Annual buckwheat Wild Buckwheat	7 images
Eragrostis intermedia	Plains lovegrass Plains Lovegrass	13 images
Eryngium leavenworthii	Leavenworth's eryngo Eryngo	41 images
Eriogonum multiflorum	Wild buckwheat Heartsepal buckwheat Heart-sepal wild buckwheat	6 images
Eragrostis palmeri	Rio Grande lovegrass
Erioneuron pilosum	Hairy woollygrass Hairy tridens	12 images
Eriochloa sericea	Texas cupgrass	6 images
Eragrostis spectabilis	Purple lovegrass Purple love grass Purple plains lovegrass Tumblegrass Petticoat climber	1 images
Esenbeckia berlandieri	Berlandier's jopoy Jopoy	2 images
Euphorbia cyathophora	Wild Poinsettia Poinsettia Fire on the Mountain	20 images
Euphorbia marginata	Snow on the mountain Snow-on-the-mountain	33 images
Eysenhardtia texana	Texas kidneywood Kidneywood Bee-Brush Vara dulce	22 images
Fraxinus americana	White ash	8 images
Fraxinus berlandieriana	Mexican ash Fresno Berlandier ash	8 images
scientific name	common name(s)	image gallery

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South Texas Plains