Echinocactus whipplei Engelm. & J.M.Bigelow in Proc. Amer. Acad. Arts 3: 271–272. 1856
Echinocactus whipplei in Proc. Amer. Acad. Arts 3: 271–272. 1856
is basionym for Sclerocactus whipplei, Cactaceae 3: 213. 1922
is basionym for Pediocactus whipplei in Cact. Succ. J. (Los Angeles) 44(5): 222. 1972
is basionym for Ferocactus whipplei in Cact. Succ. J. Gr. Brit. 41: 90. 1979