Clustering, body elongate, 2-5 cm wide and to 20 cm high. Tubercles prominent, conical. Axils woolly. Central spines 4, 8 mm long, white, tips brown, needle-like. Radial spines 15-25, 6-8 mm long, white. Flowers white, to 1.5 cm long and wide. Fruit red.

NW 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.