This name is a synonym of Rhododendron phaeochrysum Balf. f. & W.W. Sm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12304799) with original publication details: Notes Roy. Bot. Gard. Edinburgh 11(52–53): 58–60 1919.
This name was in version 1 of The Plant List, record tro-12304799.