| Name | Trifolium longipes subsp. elmeri (Greene) J. M. Gillett |
| Authorship | (Greene) J. M. Gillett |
| Rank | Subspecies |
| Placed in | Trifolium longipes Nuttall |
| Citation | 1969 Canad. J. Bot. 47: 111 |
| Holdings | 18 Specimens held in the Harvard University Herbaria identified as Trifolium longipes subsp. elmeri (Greene) J. M. Gillett |
| Identification made in | [no date] (18) |