This name is a synonym of Rhodiola smithii (Raym.-Hamet) S.H. Fu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8903763) with original publication details: Kew Bull. 1937: 97 1937.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:276010-1.
This name was in version 1 of The Plant List, record tro-8903763.