Arnica lanceolata subsp. amplexicaulis (Nuttall) Gruezo

Arnica lanceolata subsp. amplexicaulis (Nuttall) Gruezo is a synonym sensu TROPICOS of:

Arnica lanceolata subsp. prima (Maguire) Strother & S.J. Wolf, an accepted subspecies name sensu FNA Ed. Comm., 2006c.