⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-12303882, and has not been changed.
This name is a synonym of Rhododendron augustinii subsp. chasmanthum (Diels) Cullen.
The record derives from Tropicos which reports it as a synonym (record 12303882) with original publication details: Quart. J. Amer. Rhodod. Soc. 30: 210 210 1976.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:332016-1.