Thelocactus hastifer (Werderm. & Boed.) F.M.Knuth, Kaktus-ABC: 360. 1936 ["1935"] sec. Hunt 2016
- ≡Echinocactus hastifer Werderm. & Boed. in Notizbl. Bot. Gart. Berlin-Dahlem 11: 274. 1931 syn. sec. Hunt 2006
- ≡Ferocactus hastifer (Werderm. & Boed.) N.P.Taylor in Cact. Succ. J. Gr. Brit. 41: 90. 1979 syn. sec. Hunt 2016