This name is a synonym of Sedum sediforme (Jacq.) Pau.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Fl. Napol. Prodr.: xxvii 1811.
This name was in version 1 of The Plant List, record kew-2489550, and has not been changed.