Clustering and mounding, body depressed globular, to 12 cm wide, with milky sap. Tubercles prominent, pyramidal. Axils woolly. Spines sub-central 2-5, variable in length, commonly to 5 mm, grey or yellow, tips brown, lower spine longer, to 50 mm. Flowers deep pink or pale yellow, to 2.5 cm long and wide. Fruit purplish red.

C 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.