| Name | Geranium arsenianum R. Knuth |
| Authorship | R. Knuth |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Geranium Linnaeus |
| GUID | urn:lsid:ipni.org:names:109071-2 |
| Citation | 1922 Repert. Spec. Nov. Regni Veg. 18: 290 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Geranium arsenianum R. Knuth |
| Identification made in | 1942 (1), 2009 (1) |