Body clustering, cylindrical, 10-25 cm high, 5-7 cm wide with 18-24 ribs. Areoles with 4-5 reddish central spines to 3 cm long, 18-36 yellowish radial spines to 1 cm long and numerous long whitish hairs obscuring stems. Flowers purple-pink to 7 cm long, 6 cm wide. [E. longisetus (Engelm.) Lem. var. delaetii (Gürke) N.P. Taylor]
Source: (1997). Echinocereus. In: . 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.