United States, Texas, Presidio, Just W of Two Mile Well, ca. 2.7 airmiles N to NNW of jct. US Rt. 67 and US Rt. 90 in downtown Marfa. SE part of Mimms Ranch. Marfa Quadrangle.
30.34673 -104.03217
In weedy herbaceous vegetation around cattle pens in heavily impacted part of grassland on silty soil on very gently rolling landscape underlain by a mix of Perdiz Conglomerate (a fanglomerate of variable composition) and Quaternary alluvium. Associates included Amaranthus palmeri, Chenopodium sp., Cucurbita foetidissima, Marrubium vulgare, Panicum obtusum, Solanum elaeagnifolium.