This name is a synonym of Rhododendron yungningense Balf. f. ex Hutch..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12303971) with original publication details: Gard. Chron. 91: 428 1932.
This name was in version 1 of The Plant List, record tro-12303971, and has not been changed.