Locality:
United States, Arizona, Santa Cruz County, Nogales,
31.35 -110.9333
Description:
short-spined form mentioned by Britton & Rose, Cactaceae 3:36 and Fig. 45, as possibly distinct from Fendleri, in this form, which is common in the grasslands of southeastern AZ, the spines are short, stout, straight, and often there is a secondary central, stems 3, ribs 11, pressed on April 2, 1940