| Name | Penstemon subglaber Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:187797-2 |
| Holdings | 38 Specimens held in the Harvard University Herbaria identified as Penstemon subglaber Rydberg |
| Identification made in | [no date] (36), 1930 (1), 1986 (1) |