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

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. July 17, 2018. https://michiganflora.net/species.aspx?id=7.