| Name | Trifolium microcephalum Pursh |
| Authorship | Pursh |
| Rank | Species |
| Placed in | Trifolium Linnaeus |
| Citation | 1813 Fl. Amer. Sept. [Pursh] 2: 478 |
| Holdings | 147 Specimens held in the Harvard University Herbaria identified as Trifolium microcephalum Pursh |
| Identification made in | [no date] (146), 2000 (1) |