Maihueniopsis minuta (Backeb.) R.Kiesling in Darwiniana 25: 204. 1984 sec. Hunt 2016
- ≡Tephrocactus minutus Backeb., Kaktus-ABC: 110, 410. 1936 ["1935"] syn. sec. Hunt 2006
- ≡Opuntia minuta (Backeb.) A.Cast. in Lilloa 23: 12. 1950 syn. sec. Hunt 2016
- ≡Opuntia mininuta (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958 syn. sec. IPNI 2000+
- =Tephrocactus mandragora Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Hunt 2016
- ≡Opuntia mandragora (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958, comb. illeg., syn. sec. Hunt 2016
- ≡? Maihueniopsis mandragora (Backeb.) F.Ritter, Kakteen Südamerika 2: 389. 1980 syn. sec. Hunt 2016
