United States, Texas, Presidio, Ca. 4.0-4.1 airmiles NW to WNW of jct. US Rt. 67 and US Rt. 90 in downtown Marfa. SW part of Mimms Ranch. Marfa Quadrangle.
30.34397 -104.07487
In mixed grassland / shrubland on gravelly silty soils on level to very gently sloping site, on gently rolling landscape underlain by a mix of Perdiz Conglomerate (a fanglomerate of variable composition) and Quaternary alluvium. Associates included Abronia angustifolia, Aphanostephus ramosissimus, Bouteloua barbata, B. gracilis, Chamaesyce indivisa, Psilostrophe tagetoides, Senna bauhinioides, Zinnia grandiflora, Acacia constricta, small Prosopis sp.