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: Hist. Nat. Iles Canaries 2(1): 179 1840.
This name was in version 1 of The Plant List, record kew-2626992, and has not been changed.