| Name | Penstemon ambiguus var. foliosus Bentham |
| Authorship | Bentham |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon ambiguus Torrey |
| GUID | urn:lsid:ipni.org:names:187139-2 |
| Citation | 1846 Prodr. [A. P. de Candolle] 10: 321 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon ambiguus var. foliosus Bentham |
| Identification made in | [no date] (1) |
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