Glyceria canadensis (Michx.) Trin.
Common Name: RATTLESNAKE GRASS
Coefficient of Conservatism: 8
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Grass

In the same situations as G. borealis, but also frequently in bogs, tamarack and cedar swamps, and on peaty shores.

The lemmas appear distinctly pointed in this species, and exceed their paleas – often by as much as 0.5 mm or slightly more. In G. grandis and G. striata, the lemmas are about the same length as their paleas or exceed them slightly with broad scarious tips. Glyceria canadensis apparently does not produce the aquatic leaf form of G. borealis.

Locations

Alcona County
Alger County
Allegan County
Arenac County
Baraga County
Barry County
Berrien County
Calhoun County
Cass County
Charlevoix County
Cheboygan County
Chippewa County
Delta County
Dickinson County
Gogebic County
Hillsdale County
Houghton County
Ingham County
Ionia County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
Lenawee County
Livingston County
Luce County
Mackinac County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Missaukee County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ontonagon County
Osceola County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Sanilac County
Schoolcraft County
St. Clair County
Van Buren County
Washtenaw County
Wayne County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 10, 2017. http://michiganflora.net/species.aspx?id=2127.