⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-144847, with some changes.
This name is a synonym of Arnica lanceolata Nutt..
The record derives from TICA which reports it as a synonym (record 9E18B320-6133-4C2F-8554-FF10CD2BF09C) with original publication details: N. Amer. Fl. 34 352 1927.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:20070-2.