| Name | Penstemon flavescens Pennell |
| Authorship | Pennell |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:807882-1 |
| Citation | 1942 Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 4 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Penstemon flavescens Pennell |
| Identification made in | [no date] (5) |
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