Names and synonyms
Thelocactus hastifer (Werderm. & Boedeker) F. Knuth, in Backeb. & F. Knuth, Kaktus-ABC, 360 (1935).
Echinocactus hastifer Werderm. & Boedeker, Notizbl. Bot. Gart. Mus. Berlin-Dahlem 11: 274 (1931). Ferocactus hastifer N.P. Taylor, Cact. Succ. J. Gr. Brit. 41: 90 (1979).