| Name | Penstemon watsonii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon watsonii subsp. laxus (A. Nelson) D. D. Keck |
| GUID | urn:lsid:ipni.org:names:808348-1 |
| Citation | 1878 Syn. Fl. N. Amer. 2(1): 267 |
| Holdings | 68 Specimens held in the Harvard University Herbaria identified as Penstemon watsonii A. Gray |
| Identification made in | [no date] (59), 1930 (1), 1946 (8) |
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