| Name | Arnica chamissonis subsp. foliosa (Nuttall) Maguire |
| Authorship | (Nuttall) Maguire |
| Rank | Subspecies |
| Placed in | Arnica chamissonis Lessing |
| Citation | 1939 Rhodora 41: 508 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Arnica chamissonis subsp. foliosa (Nuttall) Maguire |
| Identification made in | [no date] (4) |