Coefficient of Conservatism:
6
Coefficient of Wetness:
-5
Wetness Index:
OBL
Physiognomy:
Nt P-Sedge
R. Schipper
Marshes, swales, ditches, bog and fen borders, river and stream banks, alder or tamarack swamps, and similar wet places, often forming extensive colonies.
A few collections have the sheaths unusually hispidulous. One collection from Jackson Co. (mapped as C. subimpressa in Michigan Flora) is very unusual in having the perigynia thinly hispidulous. These rare states are not accommodated in the keys.
Locations
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Alcona County
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Alger County
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Allegan County
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Alpena County
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Arenac County
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Baraga County
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Bay County
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Berrien County
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Calhoun County
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Cass County
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Charlevoix County
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Including Beaver Island
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Cheboygan County
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Chippewa County
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Clinton County
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Crawford County
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Eaton County
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Emmet County
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Genesee County
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Gogebic County
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Gratiot County
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Hillsdale County
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Houghton County
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Huron County
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Ingham County
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Ionia County
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Iosco County
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Jackson County
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Kalamazoo County
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Kalkaska County
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Kent County
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Keweenaw County
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Only on Isle Royale
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Lake County
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Leelanau County
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Including Manitou Islands
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Lenawee County
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Livingston County
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Luce County
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Mackinac County
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Macomb County
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Marquette County
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Mason County
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Mecosta County
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Monroe County
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Montcalm County
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Muskegon County
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Newaygo County
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Oakland County
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Ontonagon County
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Oscoda County
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Presque Isle County
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Roscommon County
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Schoolcraft County
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Shiawassee County
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St. Clair County
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St. Joseph County
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Tuscola County
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Van Buren County
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Washtenaw County
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Wayne County
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Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 23, 2018. https://michiganflora.net/species.aspx?id=988.