| Name | Penstemon leiophyllus subsp. keckii (Clokey) N. H. Holmgren |
| Authorship | (Clokey) N. H. Holmgren |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon leiophyllus Pennell |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Penstemon leiophyllus subsp. keckii (Clokey) N. H. Holmgren |
| Identification made in | [no date] (2) |
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