⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2725345, and has not been changed.
This name is a synonym of Cleistocactus baumannii subsp. santacruzensis (Backeb.) Mottram.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cact. 2: 175 1920.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:60171-2.