This name is a synonym of Sedum radiatum S. Watson.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8901999) with original publication details: Cact. Succ. J. (Los Angeles) 18(4): 59 1946.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:231705-2.
This name was in version 1 of The Plant List, record tro-8901999.