United States, Texas, Presidio, Ca. 3.4-3.5 airmiles WSW of jct. US Rt. 90 and St. Rt. 17 in downtown Marfa. SW part of Mimms Ranch (Dixon Water Foundation). Marfa Quadrangle.
30.32518 -104.07512
In mixed vegetation (mainly forbs and low shrubs), on sandy to silty loam on gentle slope on very gently rolling landscape underlain by a mix of Perdiz Conglomerate (a fanglomerate of variable composition) and Quaternary alluvium. Associates included Acourtia nana, Chaetopappa ericoides, Croton pottsii, Dalea formosa, Dyschoriste sp., Flourensia cernua, Koeberlinia spinosa, Melampodium leucanthum, Muhlenbergia arenicola, M. porteri, Munroa squarrosa, Opuntia sp., Psilostrophe tagetina, Rhynchosia senna, Senna bauhinioides, Setaria leucopila, Thymophylla acerosa, Tidestroemia lanuginosa, Zinnia grandiflora, Ziziphus obtusifolia.