Cardamine flexuosa subsp. pensylvanica (Muhlenberg ex Willdenow) O.E. Schulz

Cardamine flexuosa subsp. pensylvanica (Muhlenberg ex Willdenow) O.E. Schulz is a synonym sensu FNA Ed. Comm., 2010 of:

Cardamine pensylvanica Muhlenberg ex Willdenow, an accepted species name sensu FNA Ed. Comm., 2010.