| Name | Penstemon hallii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon hallii var. arizonicus A. Gray |
| GUID | urn:lsid:ipni.org:names:808127-1 |
| Citation | 1862 Proc. Amer. Acad. Arts 6: 70 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Penstemon hallii A. Gray |
| Identification made in | [no date] (5), 1930 (6), 1937 (1) |
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