| Name | Clematis hirsutissima Pursh |
| Authorship | Pursh |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Clematis Linnaeus |
| GUID | urn:lsid:ipni.org:names:709772-1 |
| Citation | 1814 Fl. Amer. Sept. [Pursh] 2:385 |
| Holdings | 131 Specimens held in the Harvard University Herbaria identified as Clematis hirsutissima Pursh |
| Identification made in | [no date] (129), 1942 (1), 2002 (1) |