United States, Texas, Jeff Davis, NW side of ridge (divide) between Madera Canyon and Bicycle Canyon, ca. 1.1 airmiles SW of Blue Tank, 3.8 airmiles E of 6652 ft. summit of Robbers Roost Mt., on Caldwell Ranch. Friend Mountain Quadrangle.
30.77861 -104.0575
Occasional in pine-oak-maple woodland localized around mesic box canyon header in palisade rimrock wall at top of N-facing rhyolite slope. Assc. include Acer grandidentatum, Aletes acaulis, Aquilegia ap., Arbutus xalapensis, Asclepias texana, Bidens bigelovii, Bouvardia ternifolia, Bromus polyanthus, Celtis reticulata, Cercocarpus montanus, Forestiera pubescens, Garrya wrightii, Halimolobus sp., Heterotheca viscosa, Heucheta rubescens, Penstemon cardinalis ssp. regalis, P. barbatus, Philadelphus sp., Prunus serotina ssp. virens, Quercus gravesii, Q. grisea, Rhus aromatica, Silene laciniata, Stipa tenuissima, Thelypodiopsis wrightii.