| Name | Hedysarum boreale subsp. mackenzii (Richardson) S. L. Welsh |
| Authorship | (Richardson) S. L. Welsh |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Hedysarum boreale Nuttall |
| GUID | urn:lsid:ipni.org:names:118466-2 |
| Holdings | 128 Specimens held in the Harvard University Herbaria identified as Hedysarum boreale subsp. mackenzii (Richardson) S. L. Welsh |
| Identification made in | [no date] (125), 1994 (2), 2014 (1) |