| Name | Penstemon arenarius Greene |
| Authorship | Greene |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:187159-2 |
| Citation | 1889 Pittonia 1: 282 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Penstemon arenarius Greene |
| Identification made in | [no date] (3) |