Matucana formosa F.Ritter in Taxon 12: 125. 1963 sec. Hunt 2016
- ≡Submatucana formosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 14. 1963 syn. sec. TROPICOS 1988+
- ≡Borzicactus formosus (F.Ritter) Donald in Natl. Cact. Succ. J. 26: 10. 1971 syn. sec. Hunt 2016
- ≡Loxanthocereus formosus (F.Ritter) Buxb. in Krainz, Kakteen 57: CV c. 1974 syn. sec. Kew WCVP (2019)
- =Matucana formosa var. minor F.Ritter in Taxon 12(3): 125. 1963 syn. sec. Kew WCVP (2019)
- ≡Submatucana formosa var. minor (F.Ritter) Backeb., Descr. Cact. Nov. 3: 14. 1963 syn. sec. Kew WCVP (2019)