⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-2190, with some changes.

Arnica tomentulosa Rydb. is a synonym of Arnica chamissonis Less.

This name is a synonym of Arnica chamissonis Less..

The record derives from TICA which reports it as a synonym (record 04F2A6CA-8676-4FCA-B473-03F030F23077) with original publication details: Bull. Torrey Bot. Club 28 20 1901.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:20107-2.