| Name | Trifolium rusbyi subsp. oreganum (Howell) D. Heller & Zohary |
| Authorship | (Howell) D. Heller & Zohary |
| Rank | Subspecies |
| Placed in | Trifolium rusbyi Greene |
| Citation | 1984 Gen. Trifolium 173 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Trifolium rusbyi subsp. oreganum (Howell) D. Heller & Zohary |
| Identification made in | [no date] (3) |
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