| Name | Penstemon geniculatus Greene |
| Authorship | Greene |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:187419-2 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Penstemon geniculatus Greene |
| Identification made in | [no date] (3) |
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