Arnica alpina var. tomentosa (J.M. Macoun) Cronquist

Arnica alpina var. tomentosa (J.M. Macoun) Cronquist is a synonym sensu FNA Ed. Comm., 2006c of:

Arnica angustifolia subsp. tomentosa (J.M. Macoun) G.W. Douglas & Ruyle-Douglas, an accepted subspecies name sensu FNA Ed. Comm., 2006c.