Tephrocactus weberi (Speg.) Backeb., Kaktus-ABC: 106. 1936 ["1935"] sec. Hunt 2016
- ≡Opuntia weberi Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 509. 1905 syn. sec. ???
- =Opuntia weberi var. dispar A.Cast. & H.V.Lelong in Jahrb. Deutsch. Kakteen-Ges. 1935-1936: 51. 1936 syn. sec. Kew WCVP (2019)
- ≡Ursopuntia textoris var. dispar (A.Cast. & H.V.Lelong) P.V.Heath in Calyx 6: 42. 1999 syn. sec. Kew WCVP (2019)
- ≡Tephrocactus setiger f. dispar (A.Cast. & H.V.Lelong) G.Popov in Kaktus Klub 15: 13. 2011 syn. sec. Kew WCVP (2019)
- =Tephrocactus setiger Backeb., Kaktus-ABC: 106. 1936 ["1935"] syn. sec. Kew WCVP (2019)
- ≡Opuntia setigera (Backeb.) W.T.Marshall in Cact. Succ. J. (Los Angeles) 17: 114. 1945 syn. sec. Kew WCVP (2019)
- ≡Opuntia weberi var. setigera (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 25. 1958 syn. sec. Kew WCVP (2019)
- ≡Tephrocactus weberi var. setiger (Backeb.) Backeb., Cactaceae 1: 252. 1958 syn. sec. Kew WCVP (2019)
- ≡Ursopuntia textoris var. setiger (Backeb.) P.V.Heath in Calyx 6: 42. 1999 syn. sec. Kew WCVP (2019)
- =? Ursopuntia textoris P.V.Heath in Calyx 6: 41. 1999 syn. sec. ???