This name is a synonym of Sedum monregalense Balb..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Annuaire Conserv. Jard. Bot. Genève 5: 100 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275648-1.
This name was in version 1 of The Plant List, record kew-2483451, and has not been changed.