Collected
01 October 1992.
Arizona, United States
Locality: Pima Co., Chiminea Creek, ca. 1/8 mi. upstream from Madro o Ranger Station, Saguaro Natl. Monument East, Rincon Mts.
Environment description: Among boulders and rock outcroppings along canyon with Prosopis velutina, Acacia greggii, A. millefolia, Eysenhardtia orthocarpa, Amorpha fruticosa, Celtis reticulata, Platanus wrightii.
Number of plants sampled: 8