Body scrambling, cylindric to 60 cm high, 1-2 cm wide with 8-10 low ribs. Areoles with 9-17 radial spines to 9 mm long. Flowers pink, 7 cm wide. [Wilcoxia poselgeri (Lem.) Britton & Rose]

NE Mexico, SW North America

Source: Forbes, S. (1997). Echinocereus. 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.