⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-12303553, and has not been changed.
This name is a synonym of Rhododendron protistum var. giganteum (Forrest ex Tagg) D.F. Chamb..
The record derives from Tropicos which reports it as a synonym (record 12303553) with original publication details: J. Roy. Hort. Soc. 49: 27 27 1924.