Populus deltoides Marshall
Common Name: COTTONWOOD
Coefficient of Conservatism: 1
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt Tree

Borders of rich forests, floodplains and other swamps, river banks, sand dunes; spreading to shores, fields, and other open usually moist places; sometimes planted.

Both subsp. monilifera with long acuminate leaf apices and usually only two conspicuous glands along the leaf margin at the petiole and subsp. deltoides with often more short acuminate leaf apices and glands variable in size and number, but usually smaller and more raised (sometimes essentially absent) are widespread in Michigan. The differences are subtle and some collections are hard to place.

Locations

Alcona County
Allegan County
Alpena County
Arenac County
Barry County
Bay County
Benzie County
Berrien County
Branch County
Calhoun County
Cass County
Charlevoix County
Cheboygan County
Clinton County
Crawford County
Eaton County
Genesee County
Gladwin County
Gratiot County
Hillsdale County
Huron County
Ingham County
Iosco County
Isabella County
Kalamazoo County
Kent County
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Mackinac County
    Only on Bois Blanc, Mackinac, Round Islands
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Muskegon County
Newaygo County
Oakland County
Oceana County
Osceola County
Ottawa County
Saginaw County
Shiawassee County
St. Clair County
St. Joseph County
Tuscola 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 11, 2017. http://www.michiganflora.net/species.aspx?id=2613.