| Name | Penstemon speciosus subsp. kennedyi (A. Nelson) D. D. Keck |
| Authorship | (A. Nelson) D. D. Keck |
| Rank | Subspecies |
| Placed in | Penstemon speciosus Douglas |
| Citation | 1940 Amer. Midl. Naturalist 23: 613 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Penstemon speciosus subsp. kennedyi (A. Nelson) D. D. Keck |
| Identification made in | [no date] (4) |
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