This name is a synonym of Rhododendron camtschaticum var. glandulosum (Standl. ex Small) B. Boivin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50309332) with original publication details: Rhododendrons 173 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:219480-2.
This name was in version 1 of The Plant List, record tro-50309332.