This name is a synonym of Rhododendron longesquamatum C.K. Schneid..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50240647) with original publication details: Acta Phytotax. Sin. 41(2): 197, f. 1 2003.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:70028398-1.
This name was in version 1 of The Plant List, record tro-50240647, and has not been changed.