This name is a synonym of Sedum sarmentosum Bunge.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50056092) with original publication details: J. Bot. 13(152): 227 1875.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:276059-1.
This name was in version 1 of The Plant List, record tro-50056092.