| Name | Marah oregana (Torrey & A. Gray) Howell |
| Authorship | (Torrey & A. Gray) Howell |
| Rank | Species |
| Placed in | Marah |
| Citation | 1898 Fl. N.W. Amer. 2: 239 |
| Holdings | 44 Specimens held in the Harvard University Herbaria identified as Marah oregana (Torrey & A. Gray) Howell |
| Identification made in | [no date] (43), 1949 (1) |
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