Collected
11 October 1993.
Arizona, United States
Locality: Pinal Co., (Unpaved) road from Oracle to Mt. Lemmon, 1.2 mi. W of Peppersauce Canyon.
Environment description: N facing road cut. Plants growing from cut bank below oak grassland with Prosopis velutina, Mimosa biuncifera, Quercus arizonica, Quercus emoryi.
Number of plants sampled: 15