| Name | Penstemon eximius D. D. Keck |
| Authorship | D. D. Keck |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:187384-2 |
| Citation | 1937 Amer. Midl. Naturalist 18: 798 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon eximius D. D. Keck |
| Identification made in | [no date] (1) |