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 Water Foundation). Plata NE Quadrangle.
29.88152 -104.01712
In strip of emergent hydrophytes on wet clayey soils on unshaded margin of pump-fed pond (stock tank) in valley between slopes of tuffaceous sandstone and conglomerate of the Tascotal Formation. Associates included Aster subulatus, Baccharis sp., Calibrachoa parviflora, Cynodon dactylon, Eleocharis 31804, Leptochloa 31903, Paspalum distichum, Salix sp. (seedlings), Xanthium strumarium.