Athyrium angustum (Willdenow) C. Presl

Athyrium angustum (Willdenow) C. Presl is a synonym sensu FNA Ed. Comm., 1993 of:

Athyrium filix-femina var. angustum (Willdenow) G. Lawson, an accepted variety name sensu FNA Ed. Comm., 1993.