Carex billingsii (O. W. Knight) C. D. Kirschbaum
Common Name: SEDGE
Synonym: Carex trisperma
Coefficient of Conservatism: 10
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Sedge

Carex billingsii A. A. Reznicek

Included in C. trisperma in Michigan Flora.

Sphagnum bogs, usually on hummocks and typically in more sunny sites than the closely related C. trisperma.

Apparently very local, but with a very specific habitat and only recently recognized as a distinct species (Kirschbaum 2007), thus perhaps somewhat overlooked. The filiform-involute leaves give this somewhat the look of the upland Carex eburnea, but topped with inflorescences resembling those of C. trisperma.


Cheboygan County
Delta County
Ingham County
Lake County
Luce County
Mackinac County
Menominee County
Sanilac County
Tuscola County
Washtenaw County
Wexford County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 30, 2022.