Carex tribuloides Wahlenb.
Common Name: SEDGE
Coefficient of Conservatism: 3
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Sedge

Moist to wet ground generally: marshes, swales, ditches, and shores; swamps, shrub thickets, shaded borders, rarely in drier sites, and very uncommon northwards.

Sometimes confused with C. scoparia, especially when immature. The pistillate scales are usually ± blunt and hyaline-tipped, while in C. scoparia they tend to be narrowly acuminate to very sharp tips. The leaves are generally narrower in C. scoparia. Depauperate shade forms with sparse and sometimes lax inflorescences are difficult to distinguish from C. projecta, and narrow leaved plants generally are hard to key because of the difficulty of discerning the loose sheaths. See the notes under C. cristatella.

A few specimens from southernmost Michigan may be referrable to var. sangamonensis Clokey, with broader, shorter perigynia ca. 2-3 times as long as wide. This entity, occasionally recognized as a distinct species, Carex sangamonensis (Clokey) Mohlenbr., needs more study in our region.


Allegan County
Alpena County
Arenac County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Charlevoix County
    Only on Beaver Island
Chippewa County
Clare County
Clinton County
Emmet County
Genesee County
Gratiot County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Isabella County
Jackson County
Kalamazoo County
Kent County
Leelanau County
Lenawee County
Livingston County
Macomb County
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Montcalm County
Newaygo County
Oakland County
Oceana County
Otsego County
Ottawa County
Presque Isle County
Saginaw County
Sanilac County
Shiawassee County
St. Clair County
Tuscola County
Van Buren County
Washtenaw County
Wayne County
Wexford County


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