Woodsia oregana D. C. Eaton
Common Name: OREGON WOODSIA
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt Fern

Woodsia oregana ex W. H. Wagner slide collection

Rock ledges, talus slopes, and outcrops, in both acidic and more calcareous rocks; very local.

Our plants are all the tetraploid subsp. cathcartiana (B. L. Rob.) Windham. See under W. ilvensis for the hybrid W. ×abbeae Butters.

Locations

Chippewa County
Dickinson County
Houghton County
Iron County
Keweenaw County
    Including Isle Royale
Mackinac County
Marquette County
Ontonagon County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 11, 2017. http://www.michiganflora.net/species.aspx?id=2812.