| Name | Penstemon labrosus (A. Gray) Masters ex Hooker f. |
| Authorship | (A. Gray) Masters ex Hooker f. |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1884 Bot. Mag. 110: t. 6738 |
| Holdings | 19 Specimens held in the Harvard University Herbaria identified as Penstemon labrosus (A. Gray) Masters ex Hooker f. |
| Identification made in | [no date] (19) |
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