This name is a synonym of Rhododendron simsii Planch..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50060768) with original publication details: Bull. Bot. Res., Harbin 4(1): 3–4, photo 3 1984.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:905101-1.
This name was in version 1 of The Plant List, record tro-50060768.