This name is a synonym of Rhodiola macrocarpa (Praeger) S.H. Fu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8903729) with original publication details: Acta Horti Gothob. 1(1): 24–25 1924.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275387-1.
This name was in version 1 of The Plant List, record tro-8903729, and has not been changed.