| Name | Penstemon angustifolius Nuttall ex Pursh |
| Authorship | Nuttall ex Pursh |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon angustifolius subsp. caudatus (A. Heller) D. D. Keck Penstemon angustifolius var. caudatus (A. Heller) Rydberg Penstemon angustifolius subsp. venosus D. D. Keck |
| Citation | 1813 Fl. Amer. Sept. [Pursh] 2: 738 |
| Holdings | 56 Specimens held in the Harvard University Herbaria identified as Penstemon angustifolius Nuttall ex Pursh |
| Identification made in | [no date] (41), 1930 (14), 1931 (1) |
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