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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 namecommon name(s)image gallery
Amorpha fruticosaIndigo bush
False indigo bush
False indigo
Desert false indigo
Amsonia illustrisOzark bluestar
Showy blue-star
Missouri blue star
Swamp bluestar
Amyris texanaChapotillo
Texas torchwood
Andropogon gerardiiBig bluestem
Turkeyfoot
Andropogon glomeratusBushy bluestem
Brushy bluestem
Andropogon virginicusBroomsedge bluestem
Broom-sedge
Aphanostephus skirrhobasisLazy daisy
Arkansas lazy daisy
Arkansas dozedaisy
Argemone mexicanaMexican pricklypoppy
Mexican prickly poppy
Yellow pricklypoppy
Aristolochia pentandraMarsh's dutchman's pipe
Argemone sanguineaRed prickly poppy
Red pricklypoppy
Rose prickly poppy
scientific namecommon name(s)image gallery

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