United States, Texas, Kleberg, 0-500 ft. W of N-S jeep trail, ca. 1.4-1.5 roadmiles S of bumpgate just W of Vinatero Well, Pinto Pasture, King Ranch Training Area (Texas National Guard). Ricardo Quadrangle.
27.44 -97.76333
Occasional in sandy/silty soil in heavily grazed upland pasture dominated by tufts of Dichanthium annulatum and invaded by Prosopis glandulosa and Opuntia spp. Associates include Cenchrus ciliaris, Aphanostephus ramosissimus, Malvastrum coromandelianum, Paraeitaria obtusa, Phacelia patuliflora, Ambrosia psilostachya, Pappophorum vaginatum, Helenium badium, Cirsium texanum, Oenothera speciosa, Chloris cucullata, Solanum elaegnifolium, Verbena bipinnatifida, Daucus pusillus, and a minor host of other weeds.