Cleistocactus azerensis Cárdenas in Cact. Succ. J. (Los Angeles) 33: 74. 1961
Cleistocactus azerensis in Cact. Succ. J. (Los Angeles) 33: 74. 1961
Holotype: Bolivia, Chuquisaca, Azero, Puente Pacheco, alt. 1100 m, Apr 1959, M. Cárdenas 5522 (LIL: 531534)