Home Cyperaceae Carex

Carex trisperma Dewey

Common Name: SEDGE
Coefficient of Conservatism: 9
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Sedge

Usually in coniferous bogs and swamps, even in dense shade under cedar, spruce, tamarack, fir, and/or hemlock; less often in swampy mixed forests or boggy hollows in sandy soils, generally in acidic soils. 

The perigynia are distinctly plano-convex and the staminate flowers basal in this species, which is sometimes confused with C. disperma, which, however, has plump, biconvex perigynia and male flowers apical in the spikesSee also notes under Carex billingsii. 

R. Schipper

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Counties
Alcona
Alger
Allegan
Alpena
Antrim
Baraga
Barry
Bay
Benzie
Berrien
Calhoun
Cass
Charlevoix
Cheboygan
Chippewa
Crawford
Delta
Dickinson
Emmet
Genesee
Gogebic
Grand Traverse
Houghton
Ingham
Ionia
Iosco
Iron
Kalamazoo
Kalkaska
Kent
Keweenaw
Leelanau
Lenawee
Livingston
Luce
Mackinac
Macomb
Manistee
Marquette
Mason
Mecosta
Menominee
Midland
Montcalm
Montmorency
Muskegon
Newaygo
Oakland
Oceana
Ontonagon
Oscoda
Otsego
Ottawa
Presque Isle
Roscommon
Sanilac
Schoolcraft
St. Clair
St. Joseph
Tuscola
Van Buren
Washtenaw

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 17, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/1071