| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Clematis ligusticifolia Nutt. ex Torr. & A.Gray | T. Nuttall s.n. s.d. | United States of America. Rocky Mountains, Lewis' River. | holotype | 233134 |  |
| Clematis ligusticifolia Nutt. ex Torr. & A.Gray | D. E. Atha 11381 with Marie Greener, 25 Jul 2011 | United States of America. Montana. Glacier Co. ca 1 air km NW of Cut Bank town center. | 1692121 |  | |
| Clematis ligusticifolia Nutt. ex Torr. & A.Gray | D. C. Thornburg 833 28 Sep 2012 | United States of America. Arizona. Yavapai Co. 2 miles NE of Cornville at Mormon Crossing of Oak Creek. | 1842880 |  | |
| Clematis ligusticifolia Nutt. ex Torr. & A.Gray | 05027123 |  |