| Name | Clematis baldwinii var. latiuscula R. W. Long |
| Authorship | R. W. Long |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Clematis baldwinii Torrey & A. Gray |
| GUID | urn:lsid:ipni.org:names:60287-2 |
| Citation | 1970 Rhodora 72: 18 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Clematis baldwinii var. latiuscula R. W. Long |
| Identification made in | [no date] (8) |