Asplenium ruta-muraria L.
Common Name: WALL-RUE
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt Fern
Status: E
Asplenium ruta-muraria D. Drife

Dry dolomite cliffs; known in Michigan only from cliffs on the east shore of Drummond Island, where collected as early as 1839, and still extant. More frequent eastward, though still quite rare in Ontario. 

See Drife & Drife (1990) for a discussion of Farwell’s mislabeled Keweenaw Co. collection.

Locations

Chippewa County
    Only on Drummond Island

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 29, 2020. https://michiganflora.net/species.aspx?id=202.