Freely clustering, mounding, body globular to 8 cm wide. Tubercles prominent, angular. Axils bearing wool and bristles, central spines 2-6 whitish or pale brownish unequal radial spines 2-7 mm long, occasionally with 1-3 short additional spines. Flowers purplish-red, 1.5 cm wide. Fruit red.
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.