| Name | Penstemon seorsus (A. Nelson) D. D. Keck |
| Authorship | (A. Nelson) D. D. Keck |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon Schmidel |
| Citation | 1940 Amer. Midl. Naturalist, Monogr. 23: 595 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Penstemon seorsus (A. Nelson) D. D. Keck |
| Identification made in | [no date] (2) |