Penstemon brevisepalus
| Pale beardtongue |
Penstemon calycosus
| Smooth beard tongue |
Penstemon canescens
| Hoary beard tongue; Eastern gray beardtongue |
Penstemon cobaea var. purpureus
| Showy beard tongue |
Penstemon deamii
| Deam's beard tongue |
Penstemon digitalis
| Foxglove beard tongue |
Penstemon gracilis
| Slender beard tongue |
Penstemon grandiflorus
| Large-flowered beard tongue |
Penstemon hirsutus
| Hairy beard tongue |
Penstemon pallidus
| Pale beard tongue |
Penstemon tubaeflorus
| Western beard tongue; Trumpet beardtongue |