| Lobivia knuthiana |
(Backeb.) H.P.Kelsey & Dayton |
Standard. Pl. Names: 73. 1942. |
| Azureocereus deflexispinus |
Backeb. ex Rauh |
in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958: 281. 1958. |
| Cereus cuzcoensis |
(Britton & Rose) Werderm. |
in: Backeberg, C., Neue Kakteen: 73, 101. 1931. |
| Cereus deflexispinus |
Monv. ex Labour. |
Monogr. Cactaceae: 321. 1853. |
| Cereus deflexispinus |
Rauh & Backeb. |
Descr. Cact. Nov. 1: 14. 1957. |
| Echinopsis cuzcoensis |
(Britton & Rose) H.Friedrich & G.D.Rowley |
in I.O.S. Bull. 3(3): 95. 1974. |
| Echinopsis knuthiana |
(Backeb.) H.Friedrich & G.D.Rowley |
in I.O.S. Bull. 3(3): 96. 1974. |
| Echinopsis puquiensis |
(Rauh & Backeb.) H.Friedrich & G.D.Rowley |
in I.O.S. Bull. 3(3): 97. 1974. |
| Echinopsis tarmaensis |
(Rauh & Backeb.) H.Friedrich & G.D.Rowley |
in I.O.S. Bull. 3(3): 98. 1974. |
| Echinopsis tulhuayacensis |
(Ochoa) H.Friedrich & G.D.Rowley |
in I.O.S. Bull. 3(3): 98. 1974. |
| Trichocereus puquiensis |
Rauh & Backeb. |
Descr. Cact. Nov. 1: 20. 1957. |
| Trichocereus tarmaensis |
Rauh & Backeb. |
Descr. Cact. Nov. 1: 20. 1957. |
| Trichocereus knuthianus |
Backeb. |
in Succulenta (Netherlands) 3: 42. 1937. |
| Trichocereus tulhuayacensis |
Ochoa ex Backeb. |
in Kakteen And. Sukk. 8: 106. 1957. |
| Echinopsis peruviana subsp. puquiensis |
(Rauh & Backeb.) Ostolaza |
in Cactaceae Consensus Init. 6: 8. 1998. |
| Trichocereus peruvianus subsp. puquiensis |
(Rauh & Backeb.) Ostolaza |
Cactus Perú: 420. 2014. |
