This name is a synonym of Rhodiola kirilowii (Regel) Maxim..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50002390) with original publication details: J. Roy. Hort. Soc. 46: 37 1921.
This name was in version 1 of The Plant List, record tro-50002390.