| Name | Clematis columbiana var. tenuiloba (A. Gray) J. S. Pringle |
| Authorship | (A. Gray) J. S. Pringle |
| Rank | Variety |
| Placed in | Clematis columbiana (Nuttall) Torrey & A. Gray |
| Citation | 1971 Brittonia 23(4): 382 |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Clematis columbiana var. tenuiloba (A. Gray) J. S. Pringle |
| Identification made in | [no date] (17), 2008 (6) |
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