| Name | Geranium oreganum Howell |
| Authorship | Howell |
| Rank | Species |
| Placed in | Geranium Linnaeus |
| Citation | 1897 Fl. N.W. Amer. 1: 106–107 |
| Holdings | 15 Specimens held in the Harvard University Herbaria identified as Geranium oreganum Howell |
| Identification made in | [no date] (14), 1941 (1) |