| Name | Penstemon caryi Pennell |
| Authorship | Pennell |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1920 Contr. U.S. Natl. Herb. 20: 354 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Penstemon caryi Pennell |
| Identification made in | [no date] (4) |
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