| Name | Penstemon acuminatus Douglas ex Lindley |
| Authorship | Douglas ex Lindley |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1829 Edwards's Bot. Reg. 15: t. 1285 |
| Holdings | 39 Specimens held in the Harvard University Herbaria identified as Penstemon acuminatus Douglas ex Lindley |
| Identification made in | [no date] (39) |
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