Collected
14 August 1990.
Texas, United States
Locality: Val Verde Co., W side of U.S. Hwy 90, 1 mi. SE of Langtry just N of bridge over small canyon.
Environment description: Rocky limestone soil with Acacia neovernicosa, A. rigidula, Prosopis glandulosa, Larrea divaricata subsp. tridentata, Guaiacum angustifolium, Opuntia schottii.