⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-87178, with some changes.
This name is a synonym of Petasites japonicus (Siebold & Zucc.) Maxim..
The record derives from TICA which reports it as a synonym (record 4EC912EB-98E0-4E7A-A684-7CAF48F9E69B) with original publication details: Perry Exped. 2: 314 1857.