A distinctive species with grey-green body. Ribs 10-15, clearly notched at the areoles. Flowers whitish with a dark stripe down the middle. The crested f. cristata is occasionally grown.

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.