Cleistocactus pycnacanthus (Rauh & Backeb.) Backeb., Kakteenlex.: 88. 1966

is new combination for Cleistocactus morawetzianus var. pycnacanthus Rauh & Backeb., Descr. Cact. Nov. 1: 17. 1957 ["1956"]

Taxon for this name