| Name | Geranium deltoideum Rydberg ex Hanks & Small |
| Authorship | Rydberg ex Hanks & Small |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Geranium Linnaeus |
| Citation | 1907 N. Amer. Fl. 25: 18 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Geranium deltoideum Rydberg ex Hanks & Small |
| Identification made in | [no date] (1), 1942 (1), 2009 (2) |
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