| Name | Penstemon pachyphyllus (A. Gray) Rydberg |
| Authorship | (A. Gray) Rydberg |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon pachyphyllus var. congestus (M. E. Jones) N. H. Holmgren |
| Citation | 1917 Fl. Rocky Mts. 770 |
| Holdings | 22 Specimens held in the Harvard University Herbaria identified as Penstemon pachyphyllus (A. Gray) Rydberg |
| Identification made in | [no date] (21), 2022 (1) |
Copyright © 2013 The President and Fellows of Harvard College | Accessibility