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