This name is a synonym of Rhododendron cavaleriei H. Lév..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50060711) with original publication details: Acta Bot. Yunnan. 4(3): 257 1982.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:917242-1.
This name was in version 1 of The Plant List, record tro-50060711, and has not been changed.