Dryopteris cristata (L.) A. Gray
Common Name: CRESTED SHIELD FERN
Coefficient of Conservatism: 6
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt Fern

Deciduous, mixed conifer-hardwood, or coniferous swamps; wet thickets, hummocks in bogs, fens, and sedge meadows; stream banks, lake shores, and seeps.

Dryopteris ×boottii (Tuck.) Underw. (D. cristata × D. intermedia), usually found in swamp forests, is one of the more frequent and easily recognized fern hybrids in Michigan. It is reminiscent of a rather narrow (and less cut) D. carthusiana, but is noticeably glandular.

Locations

Alcona County
Alger County
Allegan County
Alpena County
Antrim County
Arenac County
Baraga County
Barry County
Benzie County
Berrien County
Calhoun County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Crawford County
Delta County
Dickinson County
Eaton County
Emmet County
Genesee County
Gladwin County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Marquette County
Mecosta County
Menominee County
Midland County
Missaukee County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Osceola County
Ottawa County
Presque Isle County
Roscommon County
Sanilac County
Schoolcraft County
St. Clair County
St. Joseph County
Tuscola County
Van Buren County
Washtenaw County
Wayne County
Wexford County

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=1182.