United States, Texas, McMullen, W half of US Navy's Escondido Ranch, ca. 1.0 airmiles W to WNW of HQ, ca. 3.2 airmiles NE of jct. of Duval, La Salle, McMullen and Webb counties, at N28o05'23.3", W098o45'13.3". Piedra Creek SE Quadrangle.
28.08981 -98.75369
Frequent patches in exotics-dominated grassland in clayey alluvium in bed of large stock tank that emptied when dam was breached, on gently undulating upland underlain by clayey Eocene strata of Jackson Group. Associates include Amaranthus sp., Cynodon dactylon, Dichanthium annulatum, Isocoma drummondii, Setaria leucopila, Solanum elaeagnifolium, Tridens albescens.