Soehrensia thelegonoides (Speg.) Schlumpb. in Cactaceae Syst. Init. 28: 31. 2012 sec. Schlumpberger 2012
- ≡Cereus thelegonoides Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 480. 1905 syn. sec. Schlumpberger 2012
- ≡Trichocereus thelegonoides (Speg.) Britton & Rose, Cactaceae 2: 131. 1920 syn. sec. TROPICOS 1988+
- ≡Echinopsis thelegonoides (Speg.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 98. 1974 syn. sec. ???
- =Trichocereus rubinghianus Backeb., Descr. Cact. Nov. 3: 15. 1963 syn. sec. TROPICOS 1988+
- ≡Echinopsis rubinghiana (Backeb.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 97. 1974 syn. sec. Kew WCVP (2019)