Arnica alpina var. ungavensis (B. Boivin) B. Boivin

Arnica alpina var. ungavensis (B. Boivin) B. Boivin is a synonym sensu Downie & Denford, 1988 of:

Arnica angustifolia Vahl subsp. angustifolia, an accepted subspecies name sensu FNA Ed. Comm., 2006c.