| Name | Trifolium plumosum subsp. amplifolium (J. S. Martin) J. M. Gillett |
| Authorship | (J. S. Martin) J. M. Gillett |
| Rank | Subspecies |
| Placed in | Trifolium plumosum Douglas ex Hooker |
| Citation | 1972 Canad. J. Bot. 50(10): 1981 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Trifolium plumosum subsp. amplifolium (J. S. Martin) J. M. Gillett |
| Identification made in | [no date] (7) |