Cystopteridaceae

1. Blades ternate (divided into 3 more or less equal parts).

Gymnocarpium

1. Blades pinnate.

Cystopteris

All species found in Cystopteridaceae

Cystopteris bulbiferaBULBLET FERN 
Cystopteris fragilisFRAGILE FERN 
Cystopteris laurentianaLAURENTIAN FRAGILE FERN 
Cystopteris protrusaFRAGILE FERN 
Cystopteris tenuisFRAGILE FERN 
Gymnocarpium dryopterisOAK FERN 
Gymnocarpium jessoenseNORTHERN OAK FERN 
Gymnocarpium robertianumLIMESTONE OAK FERN 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 22, 2019. https://michiganflora.net/family.aspx?id=CYSTOPTERIDACEAE.