Carex arctata Boott
Common Name: SEDGE
Coefficient of Conservatism: 3
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Sedge

Especially characteristic of rich deciduous and beech-maple-hemlock forests, including forested dunes; also in rocky open forests, mixed forests, and under conifers such as cedar, pine, or hemlock, particularly in moist ground.

The perigynia tend to be more strongly nerved in this species than in C. debilis. Occasionally the lowermost sheaths are minutely hispidulous or at least roughened, but not pubescent as in C. castanea. Occasional specimens from northern Michigan with the slender long spikes of C. arctata and sheaths nearly as pubescent as in C. castanea are presumably a hybrid of the two, named C. ×knieskernii Dewey. Carex arctata appears to hybridize occasionally with other species as well.

Locations

Alcona County
Alger County
Allegan County
Alpena County
Antrim County
Arenac County
Baraga County
Benzie County
Berrien County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clare County
Crawford County
Delta County
Dickinson County
Eaton County
Emmet County
Gogebic County
Grand Traverse County
Gratiot County
Houghton County
Huron County
Ionia County
Iosco County
Iron County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oceana County
Ontonagon County
Osceola County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Saginaw County
Sanilac County
Schoolcraft County
Shiawassee County
St. Clair County
Van Buren 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 13, 2017. http://michiganflora.net/species.aspx?id=907.