⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50262788, and has not been changed.
This name is a synonym of Rhododendron uniflorum var. imperator (Hutch. & Kingdon-Ward) Cullen.
The record derives from Tropicos which reports it as a synonym (record 50262788) with original publication details: Sp. Rhodod. 440 440 1930.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:332619-1.