| Name | Penstemon laxus A. Nelson |
| Authorship | A. Nelson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:187597-2 |
| Citation | 1912 Bot. Gaz. 54: 147 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon laxus A. Nelson |
| Identification made in | [no date] (1) |