| Name | Penstemon glaber var. prostratus Clements | 
| Authorship | Clements | 
| Rank | Variety | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Penstemon glaber Pursh | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Penstemon glaber var. prostratus Clements | 
| Identification made in | [no date] (2) | 
