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Cyperus esculentus L.

Common Name: YELLOW NUTSEDGE
Coefficient of Conservatism: 1
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Sedge

Moist shores, ditches, river banks, fields, and marshes; gardens, cultivated fields, and other disturbed sites, sometimes a serious weed; in sand (even dunes), mud, or clay.

Seldom collected with the small tubers, up to ca. 1 cm wide, which are borne at the ends of slender scaly rhizomes (resembling roots) that break easily. These rhizomes are very characteristic and together with the pale scales and large anthers, they make this one of the most easily recognized species. The thin easily broken rhizomes bearing abundant tubers allowing rapid vegetative spread are also the reason this is a serious weed. 

B. S. Walters

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Counties
Allegan
Alpena
Antrim
Arenac
Benzie
Berrien
Cheboygan
Clinton
Emmet
Genesee
Gogebic
Grand Traverse
Gratiot
Hillsdale
Houghton
Ingham
Iosco
Kalamazoo
Kent
Leelanau
Lenawee
Macomb
Macomb or St. Clair
Mason
Mecosta
Midland
Monroe
Newaygo
Oakland
Ottawa
Schoolcraft
Shiawassee
St. Clair
Washtenaw
Wayne

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/1090