Body solitary. Areoles round. Spines 30-35 more or less equal, mostly white. Flowers yellow or orangish, the tube solid at the base.

N Argentina

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.