Athyriaceae

1. Blades bipinnate (with the pinnae again divided), the pinnules also sometimes deeply lobed.

Athyrium

1. Blades with deeply lobed pinnae.

Deparia

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://michiganflora.net/family.aspx?id=ATHYRIACEAE.