Common Name: ANNUAL BLUEGRASS
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad A-Grass

Roadsides, lawns, and disturbed ground; trails in forests and clearings; shores and stream banks. Early introduced from Europe; abundant, and first collected as early as 1838 in Jackson Co.

Occasionally rooting at the nodes, and appearing stoloniferous. The nerves of the lemma are normally villous basally, especially the keel, but occasionally they are nearly or quite glabrous. This clearly prefers cool seasons in southern Michigan especially, becoming scarce in the heat of summer, but reappearing as the weather cools in the fall.

B. S. Walters

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Counties
Alcona
Alger
Allegan
Alpena
Arenac
Barry
Bay
Berrien
Cass
Cass or Van Buren
Charlevoix
Cheboygan
Chippewa
Clare
Crawford
Delta
Emmet
Genesee
Gladwin
Gogebic
Grand Traverse
Gratiot
Hillsdale
Houghton
Ingham
Ionia
Iron
Jackson
Kalamazoo
Kalkaska
Kent
Keweenaw
Lake
Lapeer
Leelanau
Lenawee
Mackinac
Macomb
Manistee
Marquette
Mason
Menominee
Midland
Monroe
Montcalm
Montmorency
Newaygo
Oakland
Oceana
Ogemaw
Ontonagon
Oscoda
Ottawa
Presque Isle
Roscommon
Saginaw
Schoolcraft
St. Clair
Tuscola
Van Buren
Washtenaw
Wayne
Wexford

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 17, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/2191