⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-16127, with some changes.
This name is a synonym of Arnica lessingii (Torr. & A.Gray) Greene.
The record derives from TICA which reports it as a synonym (record A1D8C235-85C6-4BC0-AB1B-1DD46AF69E2E) with original publication details: Madroño 6 155 1942.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:19960-2.