Home Cyperaceae Eriophorum

Eriophorum vaginatum L.

Common Name: COTTON-GRASS
Coefficient of Conservatism: 10
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Sedge

E. spissum of Michigan Flora.

Forming large tussocks in bogs and open conifer swamps (tamarack, black spruce), only in acidic soils.

Another cespitiose, single-headed species, Eriophorum brachyantherum Trautv. & C.A.Mey., is known rarely from the north shore of Lake Superior in Ontario. This has the lower scales of the spike appressed to ascending and lacking conspicuous whitish margins, while in E. vaginatum the lower scales are spreading or even reflexed at maturity, with broad pale to white-hyaline margins.

J. Kelly

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Counties
Alger
Alpena
Arenac
Baraga
Bay
Charlevoix
Cheboygan
Chippewa
Clare
Crawford
Delta
Dickinson
Emmet
Gogebic
Grand Traverse
Gratiot
Houghton
Ingham
Ionia
Iosco
Iron
Jackson
Kalamazoo
Kalkaska
Kent
Keweenaw
Lake
Leelanau
Luce
Mackinac
Macomb
Manistee
Marquette
Mecosta
Menominee
Missaukee
Montcalm
Montmorency
Newaygo
Oakland
Ontonagon
Oscoda
Ottawa
Presque Isle
Roscommon
Sanilac
Schoolcraft
St. Clair
Unknown
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/1126