| Name | Penstemon stenophyllus A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:808302-1 |
| Citation | 1859 Rep. U.S. Mex. Bound., Bot. 112 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Penstemon stenophyllus A. Gray |
| Identification made in | [no date] (5), 1965 (1), 2008 (1) |
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