⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2667121, with some changes.
This name is a synonym of Rhododendron molle subsp. japonicum (A.Gray) Kron.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Mem. Amer. Acad. Arts n.s., 6: 400 1859.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:326820-1.