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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
Bouteloua rigidisetaTexas grama
Bothriochloa saccharoidesSilver bluestem
Longspike silver bluestem
Buddleja sessilifloraRio Grande butterflybush
Tepozan
Capsicum annuum var. glabriusculumChile pequin
Bird pepper
Turkey pepper
Cayenne pepper
Calliandra confertaRio Grande stickpea
Fairy duster
Castela erecta ssp. texanaAllthorn goatbush
Amargoso
Goat-bush
Texan goatbush
Calylophus hartwegiiHartweg's sundrops
Western Primrose
Carya illinoinensisPecan
Castilleja indivisaEntireleaf indian paintbrush
Texas paintbrush
Indian paintbrush
Scarlet paintbrush
Entire-leaf indian-paintbrush
Callirhoe involucrataWinecup
Purple poppy mallow
scientific namecommon name(s)image gallery

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