This name is a synonym of Sedum cespitosum (Cav.) DC..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Bull. Acad. Int. Géogr. Bot. 16: 76 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275379-1.
This name was in version 1 of The Plant List, record kew-2482992, and has not been changed.