United States, Texas, Presidio, Just E of Atchison, Topeka and Santa Fe Railroad, ca. ? mi E of St. Rt. 169 bridge over Alamito Creek just N of Plata. Kennedy Ranch (Dixon Foundation). Plata NE Quadrangle.
29.88147 -104.01708
In wet clay on unshaded margin of pump-fed pond (stock tank) in valley between slopes of tuffaceous sandstone and conglomerate of the Tascotal Formation. Associates included Atriplex 31261, Calibrachoa parviflora, Cynodon dactylon, Eragrostis lehmanniana, Eragrostis 31259, Helenium microcephalum, Leptochloa fascicularis, Paspalum distichum, Salsola sp., Solanum elaeagnifolium, Trianthema portulacastrum.