Penstemon gracilis var. wisconsinensis (Pennell) Fassett
Penstemon gracilis var. wisconsinensis (Pennell) Fassett is a synonym sensu FNA Ed. Comm., 2019 of:
Penstemon gracilis Nuttall, an accepted species name sensu FNA Ed. Comm., 2019.
Penstemon gracilis var. wisconsinensis (Pennell) Fassett is a synonym sensu FNA Ed. Comm., 2019 of:
Penstemon gracilis Nuttall, an accepted species name sensu FNA Ed. Comm., 2019.