30 September 1992.
Arizona, United States
Locality: Pima Co., Along E side of road just above Marshall Gulch parking area, Santa Catalina Mts.
Coordinates: 32.4289, -110.7539
(Map it)
Environment description: Open area with Phaseolus pedicillatus var. grayanus, Lathyrus graminifolius in forest of Pinus ponderosa, Pinus strobiliformis, Pseudotsuga menziesii.
Number of plants sampled: 8
Comment: Collectors: B. Bearly, M. Johnson, M. Mack