United States, Texas, Bandera, At Seco Pass ca. 8 mi. W of Tarpley on RR 470; upper reaches of pass Creek.
29.68222 -99.38806
Along roadcut; with Arbutus, Juniper, Quercus and Ulmus woods; assoc. with Amorpha texana, Cheilanthes alabamensis, Pellaea atropurpurea, Astragalus, and Cotinus obovatus. Growing from the cracks in rocks along bluff with Tragia nigricans.