This name is a synonym of Sedum nevii var. beyrichianum (Mast.) Praeger.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8902590) with original publication details: Gard. Chron., n.s., 10: 376 1878.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:231656-2.
This name was in version 1 of The Plant List, record tro-8902590.