Arnica frigida subsp. griscomii (Fernald) S.R. Downie

Arnica frigida subsp. griscomii (Fernald) S.R. Downie is a synonym sensu Downie & Denford, 1988 of:

Arnica griscomii Fernald subsp. griscomii, an accepted subspecies name sensu FNA Ed. Comm., 2006c.