| Name | Penstemon pseudospectabilis subsp. bicolor (Brandegee) D. D. Keck |
| Authorship | (Brandegee) D. D. Keck |
| Rank | Subspecies |
| Placed in | Penstemon pseudospectabilis M. E. Jones |
| Citation | 1937 Amer. Midl. Naturalist, Monogr. 18: 806 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Penstemon pseudospectabilis subsp. bicolor (Brandegee) D. D. Keck |
| Identification made in | [no date] (7) |
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