⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2740235, with some changes.
This name is a synonym of Umbilicus rupestris (Salisb.) Dandy.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Fl. Portugal ed. 2: 336 1939.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:272747-1.