This name is a synonym of Rhodiola trifida (Hook. f. & Thomson) Jacobsen.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50002422) with original publication details: J. Linn. Soc., Bot. 2: 100 1858.
This name was in version 1 of The Plant List, record tro-50002422, and has not been changed.