Body solitary or clustering, spherical to cylindrical. Ribs 13-21. Areoles separated. Central spine 1, radial spines 7-9. Flowers yellow. Fruit green to pink or 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.