| Name | Penstemon oliganthus Wooton & Standley |
| Authorship | Wooton & Standley |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1913 Contr. U.S. Natl. Herb. 16: 172 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Penstemon oliganthus Wooton & Standley |
| Identification made in | [no date] (5), 1930 (1) |
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