Compositae Working Group (CWG) (2021). Global Compositae Database. Arnica borealis Rydb.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1194371 on 2025-03-25
original description(1927). N. Amer. Fl. 34(4) page(s): 351 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record N. Amer. Fl. 34 [Govaerts World Compositae Checklist A-G] North American Flora 34(4): [Tropicos] [details] LSID urn:lsid:compositae.org:names:F649A07A-C9BE-4BC9-9D6B-9853DED876EB [details] Taxonomy 27 Jun 1927 [details]