Arnica frigida C.A. Meyer ex Iljin subsp. frigida

Arnica frigida C.A. Meyer ex Iljin subsp. frigida is a synonym sensu Downie & Denford, 1988 of:

Arnica griscomii subsp. frigida (C.A. Meyer ex Iljin) S.J. Wolf, an accepted subspecies name sensu FNA Ed. Comm., 2006c.