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