Cleistocactus ressinianus Cárdenas in Cact. Succ. J. (Los Angeles) 28: 55. 1956
Cleistocactus ressinianus in Cact. Succ. J. (Los Angeles) 28: 55. 1956
Holotype: Bolivia, Chuquisaca, Oropeza, near Sucre, alt. 2700 m, Mar 1949, M. Cárdenas 5051 (LIL: LIL001898) https://plants.jstor.org/stable/10.5555/al.ap.specimen.lil001898