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 50001551) with original publication details: Acta Phytotax. Sin. 21(4): 469, pl. 2, f. 3 1983.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:902942-1.
This name was in version 1 of The Plant List, record tro-50001551.