| Name | Penstemon dayanus Howell |
| Authorship | Howell |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:808071-1 |
| Citation | 1901 Fl. N.W. Amer. 1: 511 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon dayanus Howell |
| Identification made in | [no date] (1) |
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