United States, Texas, Presidio, Along E-W road parallel to and just N of RR track. 1.0 roadmiles E of main N-S road on Hip-O Ranch Preserve (TNC), 0.3 mi. E of another ranch road (marked on topo) leading N, ca. 4 airmiles WNW of Marfa. Marfa Quadrangle.
30.3289 -104.09112
Rare in clay bed of Fourmile Draw, a very intermittent stream draining open grassy basin. Associates include Amphiachyris dracunculoides, Bothriochloa barbinodis, Bouteloua curtipendula, Convolvulus equitans, Conyza canadensis, Conyza coulteri, Cucurbita foetidissima, Desmanthus cooleyi, Eriogonum sp., Euphorbia albomarginata, E. dentata, Gaura coccinea, Helianthus annuus, Panicum obtusum, Sorghum halepense, Sphaeralcea angustifolia, Thelesperma ambiguum, Vernonia marginata, and Xanthium strumarium.