| Name | Arnica longifolia D. C. Eaton |
| Authorship | D. C. Eaton |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Arnica Linnaeus |
| Contains | Arnica longifolia subsp. genuina Maguire |
| GUID | urn:lsid:ipni.org:names:303716-2 |
| Citation | 1871 Botany [Fortieth Parallel] 186 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Arnica longifolia D. C. Eaton |
| Identification made in | [no date] (1) |
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