Collected
02 March 1989.
Sonora, Mexico
Locality: Along Hwy 15, 35 mi. S of Navojoa. Elevation 300 ft.
Environment description: Sinaloan Thornscrub with Stenocereus thurberi, Opuntia wilcoxii, Opuntia versicolor subsp. thurberi, Ferocactus herrerae, Fouquieria macdougalii, Cercidium praecox.
Number of plants sampled: 2