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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
Abronia fragransFragrant verbena
Sand verbena
Snowball
Snowball sand verbena
Sweet sand-verbena
Abutilon fruticosumIndian mallow
Texas Indian mallow
Abutilon hypoleucumRio Grande abutilon
White-leaf indian-mallow
Whiteleaf Indian mallow
Acacia berlandieriGuajillo
Berlandier acacia
Thornless Catclaw
Mimosa Catclaw
Round-flowered Catclaw
Huajillla
Matoral
Acacia farnesianaHuisache
Sweet acacia
Mealy wattle
Achillea millefoliumCommon yarrow
Yarrow
Milfoil
Western yarrow
Acer negundoAsh-leaf maple
Ash-leaved maple
Box elder
Boxelder
Fresno de guajuco
Acacia rigidulaBlackbrush acacia
Blackbrush
Catclaw
Chaparro prieto
Gavia
Acacia roemerianaRoundflower catclaw
Round-flower catclaw
Roemer acacia
Catclaw
Roemer's acacia
Catclaw acacia
Acacia schaffneri var. bravoensisHuisachillo
Schaffner's wattle
Twisted acacia
Agave americanaAmerican century plant
Century plant
Agave parryi ssp. parryiCentury plant
Mescal
Parry's agave
Rough agave
Allium canadense var. canadenseCanada onion
Meadow garlic
Wild onion
Allium canadense var. mobilenseMeadow garlic
Wild onion
Allium coryiYellow-flowered onion
Yellowflower onion
Allium drummondiiDrummond's onion
Wild Garlic
Drummond wild onion
Aloysia gratissimaWhitebrush
Bee-brush
White-brush
Common bee-brush
Beebrush
Privet lippia
Aloysia wrightiiWright's beebrush
Wright's lippia
Ampelopsis arboreaPeppervine
Ampelopsis cordataHeartleaf peppervine
Heart-leaf ampelopsis
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
scientific namecommon name(s)image gallery

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