Clustering, body elongate, 4-5 cm wide and 8-9 cm high, without milky sap. Axils woolly and bristly. Tubercles prominent, conical. Central spines 5-12, 4-9 mm long, white, yellowish or reddish. Radial spines 25-40, 3-12 mm long, bristle-like. Flowers cream-yellow, with reddish central stripe, to 18 mm long. Fruit red, to 2 cm long.

SW North America, NE Mexico, Cuba, Hispaniola

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.