| Name | Trifolium macrocephalum (Pursh) Poiret |
| Authorship | (Pursh) Poiret |
| Rank | Species |
| Placed in | Trifolium Linnaeus |
| Citation | 1817 Encycl. (Lamarck) Suppl. 5 336 |
| Holdings | 39 Specimens held in the Harvard University Herbaria identified as Trifolium macrocephalum (Pursh) Poiret |
| Identification made in | [no date] (39) |