United States, Texas, Presidio, NE side of St. Rt. 170, 2.9 miles NW of Fresno Canyon bridge, E of Madera Canyon. Big Bend Ranch SNA. Santana Mesa Quadrangle.
29.45278 -103.89306
Occasional in shallow soil on dry rocky slope underlain by Chisos Formation limestone-like comglomerate (lower slope) and Tule Mountain trachyandesite porphyry (upper slope), in creosote - lechuguilla desert succulent community on various exposures. Common woody plants include Larrea tridentata, Agave lechuguilla, Fouquieria splendens, various Echinocereus spp., Opuntia spp. Herbaceous associates include Lupinus havardii, Nerisyrenia camporum, Erioneuron ulchellum, Baileya multiradiata, Dalea neomexicana, Melampodium leucanthum, Perityle vaseyi, Aristida spp.