| Name | Penstemon subulatus M. E. Jones |
| Authorship | M. E. Jones |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1908 Contr. W. Bot. 12: 63 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Penstemon subulatus M. E. Jones |
| Identification made in | [no date] (7), 1938 (3), 1969 (1), 2023 (1) |
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