⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2835681, with some changes.
This name is a synonym of Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cact. 3: 154 1922.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:115418-2.