Avenella flexuosa (L.) Drejer
Common Name: HAIR GRASS
Synonym: Deschampsia flexuosa
Coefficient of Conservatism: 6
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Grass

Avenella flexuosa A. A. Reznicek

Deschampsia flexuosa of Michigan Flora.

Open generally dry sandy or rocky shores, dunes, and plains, usually associated with pine, oak, and aspen; particularly characteristic of jack pine plains and of the lumbered and burned-over sand ridges with Cladonia lichens and scattered pines along Lake Superior from Whitefish Bay west to the Pictured Rocks. Very local in southern Michigan; the Wayne Co. record, from Detroit, is over a century old. 

Chiapella (2007) shows that Avenella is a distinct lineage from Deschampsia in the strict sense.


Alcona County
Alger County
Allegan County
Alpena County
Arenac County
Baraga County
Bay County
Benzie County
Charlevoix County
    Only on Beaver Island
Cheboygan County
Chippewa County
Crawford County
Delta County
Emmet County
Grand Traverse County
Gratiot County
Houghton County
Huron County
Iosco County
Kalamazoo County
Kalkaska County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
Luce County
Mackinac County
Manistee County
Marquette County
Mason County
Mecosta County
Montmorency County
Muskegon County
Newaygo County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Schoolcraft County
Wayne County
Wexford County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. August 19, 2022. https://michiganflora.net/species.aspx?id=2065.