| Name | Penstemon rydbergii var. aggregatus (Pennell) N. H. Holmgren |
| Authorship | (Pennell) N. H. Holmgren |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon rydbergii A. Nelson |
| GUID | urn:lsid:ipni.org:names:891443-1 |
| Holdings | 31 Specimens held in the Harvard University Herbaria identified as Penstemon rydbergii var. aggregatus (Pennell) N. H. Holmgren |
| Identification made in | [no date] (31) |
Copyright © 2013 The President and Fellows of Harvard College | Accessibility