This name is a synonym of Sedum forsterianum Sm..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Engl. Bot. ed. 3, 4: 58 1865.
This name was in version 1 of The Plant List, record kew-2872604, and has not been changed.