Koeleria macrantha (Ledeb.) Schult.
Common Name: JUNE GRASS
Coefficient of Conservatism: 9
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Grass

Dry prairies, sand dunes, and jack pine and oak savannas.

Occasionally confused with Sphenopholis, but most easily distinguished by the densely short-pilose rachis and branches of the panicle. In Koeleria, the glumes tend to remain on the pedicels after the rest of the spikelet has fallen; in Sphenopholis, the glumes and pedicel fall with the rest of the spikelet. The anthers of Koeleria tend to be longer (1 or usually 1.3–1.8 mm) than in any of our species of Sphenopholis, except S. nitida.

Though known in the Upper Peninsula from oak savannas in Menominee Co. and dunes on Lake Superior in Marquette Co., an August Farwell collection (bearing one of his infamous "½" numbers) purported to be from Keweenaw Co. is likely mis-labeled and is not mapped. 


Alcona County
Allegan County
Alpena County
Bay County
Benzie County
Berrien County
Charlevoix County
    Only on Beaver Island
Crawford County
Huron County
Ingham County
Ionia County
Iosco County
Jackson County
Kalkaska County
Kent County
Lake County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Lenawee County
Livingston County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Oscoda County
Otsego County
Presque Isle County
Roscommon County
St. Clair County
St. Joseph 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. November 26, 2022. https://www.michiganflora.net/species.aspx?id=2140.