Cryptogramma acrostichoides R. Br.
Common Name: AMERICAN ROCK-BRAKE
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt Fern
Status: T
Cryptogramma acrostichoides plant in habitat J. Morefield plant in habitat

Crevices of acidic rock usually in dry, open, sunny settings. Restricted to Isle Royale, but locally frequent there.

Locations

Keweenaw County
    Only on Isle Royale

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://www.michiganflora.net/species.aspx?id=7.