| Name | Clematis alpina var. occidentalis A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| Placed in | Clematis alpina (Miller) Linnaeus |
| GUID | urn:lsid:ipni.org:names:1039502-2 |
| Citation | 1880 Rep. Geol. Resources Black Hills Dakota 531 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Clematis alpina var. occidentalis A. Gray |
| Identification made in | [no date] (1) |
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