| Name | Penstemon exilifolius A. Nelson |
| Authorship | A. Nelson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon exilifolius var. desertus A. Nelson |
| GUID | urn:lsid:ipni.org:names:187382-2 |
| Citation | 1901 Bull. Torrey Bot. Club 28: 230 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon exilifolius A. Nelson |
| Identification made in | [no date] (1) |
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