Compositae Working Group (CWG) (2021). Global Compositae Database. Arnica macrophylla Nutt.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1207315 on 2025-03-25
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Trans. Amer. Philos. Soc. , n.s., 7 [Govaerts World Compositae Checklist A-G] Transactions of the American Philosophical Society, new series, 7: [Tropicos] [details] LSID urn:lsid:compositae.org:names:22CD9DF2-E1B7-4658-AEA1-DC0C2CC2CB64 [details] Taxonomy 2 Apr 1841 [details]