Borzicactus acanthurus subsp. acanthurus sec. Hunt 2016
- =Loxanthocereus erectispinus Rauh & Backeb., Descr. Cact. Nov. 1: 15. 1957 ["1956"] syn. sec. Hunt 2016
- ≡Cleistocactus erectispinus (Rauh & Backeb.) Ostolaza in Brit. Cact. Succ. J. 21: 92. 2003 syn. sec. Hunt 2016
- ≡Echinopsis erectispina (Rauh & Backeb.) Molinari in Succulentopi@ 13: 19. 2015 syn. sec. Kew WCVP (2019)