| Name | Penstemon floridus Brandegee |
| Authorship | Brandegee |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Contains | Penstemon floridus var. austinii (Eastwood) N. H. Holmgren |
| Citation | 1899 Bot. Gaz. 27: 454 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Penstemon floridus Brandegee |
| Identification made in | [no date] (9) |