Arnica columbiana A. Nelson

Montana: Flathead County: Columbia Falls. [County not given on label]
Also Isosyntype for Arnica multiflora Greene (Pittonia 4:162. Dec. 8, 1900). Phenology: Flowering and Fruiting. Syntype?: Arnica columbiana A. Nelson. Published 1900. Bot. Gaz. 30: 200. 1900.
Isoyntype?: Arnica multiflora Greene. Published 1900. Pittonia 4: 162. 1900

R. S. Williams s.n., Jun 14, 1894
RM, Accession: 24208, Barcode: RM0000665