⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50265954, with some changes.
This name is a synonym of Rhododendron japonicum var. pentamerum (Maxim.) Hutch..
The record derives from Tropicos which reports it as a synonym (record 50265954) with original publication details: Mém. Acad. Imp. Sci. Saint Pétersbourg (Sér. 7) 16(9): 22 22 1870.