| Name | Penstemon alluviorum Pennell |
| Authorship | Pennell |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:807836-1 |
| Citation | 1933 Man. S.E. Fl. [Small] 1203 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Penstemon alluviorum Pennell |
| Identification made in | [no date] (11) |
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