Echinocactus hastifer Werderm. & Boed. in Notizbl. Bot. Gart. Berlin-Dahlem 11: 274. 1931
Echinocactus hastifer in Notizbl. Bot. Gart. Berlin-Dahlem 11: 274. 1931
is basionym for Thelocactus hastifer, Kaktus-ABC: 360. 1936 ["1935"]
is basionym for Ferocactus hastifer in Cact. Succ. J. Gr. Brit. 41: 90. 1979