Thelocactus hastifer (Werderm. & Boed.) F.M.Knuth, Kaktus-ABC: 360. 1936 ["1935"]
Thelocactus hastifer, Kaktus-ABC: 360. 1936 ["1935"]
is new combination for Echinocactus hastifer in Notizbl. Bot. Gart. Berlin-Dahlem 11: 274. 1931
Thelocactus hastifer, Kaktus-ABC: 360. 1936 ["1935"]