Solitary or clustering, body globular or eventually elongate, to 10 cm wide, with milky sap. Tubercles obscure, conical. Axils with white wool and 20-30 bristles to 4 cm. Central spines 1-5, 4-8 mm long, white, tips reddish, eventually falling. Radial spines 20-30, 5-15 mm long, white, hairlike. Flowers carmine pink, 1.5-2 cm long and wide. Fruit reddish-purple.
Source: (1997). Cactaceae. In: . 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.