Solitary or clustering, body elongate to 15 cm wide and 15-30 cm high, with milky sap. Tubercles prominent, pyramidal. Axils woolly and bristly. Central spines (1-)3-4(-7), 15-20 mm with one to 70 mm. Radial spines 5-6(-10), white, tips brown. Flowers purple-pink, to 2.5 cm long and 2 cm wide. Fruit red.

S Mexico

Source: Thompson, A, ; Forbes, S.; Spencer, R. (1997). Cactaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.