Oreocereus variicolor Backeb. in Cact. Succ. J. (Los Angeles) 23: 20. 1951 Oreocereus variicolor Backeb. in Cact. Succ. J. (Los Angeles) 23: 20. 1951is basionym for Arequipa variicolor (Backeb.) Backeb. in Cactus (Paris) 37: 217. 1953Taxon for this nameOreocereus variicolor Backeb.