1. Blades bipinnate (with the pinnae again divided), the pinnules also sometimes deeply lobed.
1. Blades with deeply lobed pinnae.
All species found in Athyriaceae
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2018. https://michiganflora.net/family.aspx?id=ATHYRIACEAE.