Body solitary, compressed spherical. Ribs 13-35. Areoles within marginal stem notches. Central spines 4, radials 6-8. Flower pinkish. Fruit more or less spherical, red.

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.