Rubus allegheniensis Porter
Common Name: COMMON BLACKBERRY
Coefficient of Conservatism: 1
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt Shrub

Savannas, forests and forest edges, clearings, old fields, roadsides; usually on dry uplands, occasional in marshy or swampy ground.

This complex includes the common, familiar tall blackberries with rather densely stalked-glandular inflorescences, which when well developed appear to be elongate racemes. Depauperate plants may occur in shade or other unfavorable conditions but can often be recognized by the numerous glands and soft-pubescent undersides of the leaflets.

Locations

Alcona County
Alger County
Alpena County
Antrim County
Arenac County
Baraga County
Barry County
Benzie County
Berrien County
Branch County
Calhoun County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clinton County
Crawford County
Delta County
Dickinson County
Eaton County
Emmet County
Genesee County
Gladwin County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Huron County
Ingham County
Ionia County
Iosco County
Iron County
Isabella County
Kalamazoo County
Kalkaska County
Kent County
Lake County
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Mackinac County
    Only on Bois Blanc, Mackinac, Round Islands
Manistee County
Marquette County
Mecosta County
Menominee County
Midland County
Missaukee County
Monroe County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Ottawa County
Roscommon County
Saginaw County
Schoolcraft County
Shiawassee County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://michiganflora.net/species.aspx?id=2552.