⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-12304731, with some changes.
This name is a synonym of Rhododendron × erythrocalyx Balf. f. & Forrest.
The record derives from Tropicos which reports it as a synonym (record 12304731) with original publication details: Notes Roy. Bot. Gard. Edinburgh 13(61): 63 63 1920.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:333510-1.