Arnica angustifolia subsp. lonchophylla (Greene) G.W. Douglas & Ruyle-Douglas

Arnica angustifolia subsp. lonchophylla (Greene) G.W. Douglas & Ruyle-Douglas is a synonym sensu FNA Ed. Comm., 2006c of:

Arnica lonchophylla Greene, an accepted species name sensu FNA Ed. Comm., 2006c.