⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2813924, and has not been changed.

Frailea perumbilicata F.Ritter is a synonym of Frailea castanea Backeb.

This name is a synonym of Frailea castanea Backeb..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Succulenta (Netherlands) 49: 125 1970.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:133239-1.