Petasites gracilis Britton
Petasites gracilis Britton is a synonym sensu FNA Ed. Comm., 2006b of:
Petasites frigidus (Linnaeus) Fries var. frigidus, an accepted variety name sensu FNA Ed. Comm., 2006b.
Petasites gracilis Britton is a synonym sensu FNA Ed. Comm., 2006b of:
Petasites frigidus (Linnaeus) Fries var. frigidus, an accepted variety name sensu FNA Ed. Comm., 2006b.