Oreocereus varicolor Backeb. in Cact. Succ. J. (Los Angeles) 23: 20. 1951 sec. Hunt 2006
- ≡Morawetzia varicolor (Backeb.) Kníže in Biota 7: 254. 1969 syn. sec. Hunt 2006
- ≡Oreocereus celsianus var. varicolor (Backeb.) Krainz syn. sec. TROPICOS 1988+
- =Oreocereus horridispinus F.Ritter & Krainz syn. sec. WFO 2019