Carex debilis Michx.
Common Name: SWAMP SEDGE
Coefficient of Conservatism: 6
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Sedge

Carex debilis N. Martineau

In moist ground of all sorts, open or (usually) ± forested (hardwoods rather than conifers); mostly in acidic, sandy soils.

Our specimens are almost all var. rudgei L. H. Bailey, with perigynia less than 6.8 mm long; very rarely seen in extreme southwestern Michigan (specimens known from Berrien and Cass Cos.) is var. debilis, with most perigynia more than 6.8 mm long.


Alger County
Allegan County
Arenac County
Berrien County
Calhoun County
Cass County
Cheboygan County
Chippewa County
Crawford County
Delta County
Gratiot County
Houghton County
Huron County
Iosco County
Iron County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
Lake County
Leelanau County
Luce County
Mackinac County
Macomb County
Marquette County
Mason County
Menominee County
Midland County
Missaukee County
Muskegon County
Newaygo County
Ontonagon County
Ottawa County
Schoolcraft County
Van Buren County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 27, 2021.