Echinocactus longihamatus var. crassispinus Engelm. in Proc. Amer. Acad. Arts 3: 274. 1857
Echinocactus longihamatus var. crassispinus in Proc. Amer. Acad. Arts 3: 274. 1857
is basionym for Ferocactus hamatacanthus var. crassispinus in Cact. Succ. J. (Los Angeles) 46: 80. 1974