| Name | Penstemon subserratus Pennell |
| Authorship | Pennell |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:807959-1 |
| Citation | 1941 Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 13 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Penstemon subserratus Pennell |
| Identification made in | [no date] (6) |
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