This name is a synonym of Sedum nevadense Coss..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Anales Jard. Bot. Madrid 45: 584 1988 publ. 1989.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:956033-1.
This name was in version 1 of The Plant List, record kew-2387068, and has not been changed.