Arnica louiseana var. griscomii (Fernald) B. Boivin
Arnica louiseana var. griscomii (Fernald) B. Boivin is a synonym sensu Downie & Denford, 1988 of:
Arnica griscomii Fernald subsp. griscomii, an accepted subspecies name sensu FNA Ed. Comm., 2006c.
Arnica louiseana var. griscomii (Fernald) B. Boivin is a synonym sensu Downie & Denford, 1988 of:
Arnica griscomii Fernald subsp. griscomii, an accepted subspecies name sensu FNA Ed. Comm., 2006c.