Arnica tomentosa J.M. Macoun
Arnica tomentosa J.M. Macoun 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.
Arnica tomentosa J.M. Macoun 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.