| Name | Arnica sonnei Greene |
| Authorship | Greene |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Arnica Linnaeus |
| GUID | urn:lsid:ipni.org:names:20086-2 |
| Citation | 1896 Pittonia 3: 104 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Arnica sonnei Greene |
| Identification made in | [no date] (1) |
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