United States, Texas, Presidio, Chinati Mtns. State Natural Area. Short, steep, S-facing canyon below an old dam in SW end of Chinatis (Cerro Orona Quad.).
29.845 -104.46889
Canyon scurb w. Guaiacum, Celtis pallida, Brickellia, Ungnadia speciosa, Opuntia imbricata, Carlowrightia ariz., Jatropha dioica, Tecoma, and Anisacanathus pub. Unconsolidated turf w. large gravel incursions. Shrub 1.5 m tall. Fls. bright yellow. Local dominant on slopes above canyon.