This name is a synonym of Rhododendron virgatum Hook. f..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50064395) with original publication details: Bull. Soc. Bot. France 33: 235–236 1886.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:332999-1.
This name was in version 1 of The Plant List, record tro-50064395, and has not been changed.