This name is a synonym of Rhododendron kwangsiense Hu ex P.C. Tam.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50101109) with original publication details: Edinburgh J. Bot. 47(2): 106 1990.
This name was in version 1 of The Plant List, record tro-50101109.