| Name | Penstemon haydenii S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| Citation | 1891 Bot. Gaz. 16: 311 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Penstemon haydenii S. Watson |
| Identification made in | [no date] (10), 1930 (4), 2007 (2) |
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