Cryptogramma

1. Plants bearing leaves singly from a slender creeping rhizome.

C. stelleri

1. Plants densely tufted, rhizomes thick and ± erect.

C. acrostichoides

All species found in Cryptogramma

Cryptogramma acrostichoidesAMERICAN ROCK-BRAKE 
Cryptogramma stelleriSLENDER ROCK-BRAKE 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 17, 2017. http://michiganflora.net/genus.aspx?id=Cryptogramma.