Wolffia columbiana H. Karst.
Common Name: COMMON WATER MEAL
Coefficient of Conservatism: 5
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb

Wolffia columbiana small rounded plants R. W. Smith small rounded plants

Quiet waters of ditches, cat-tail marshes, ponds, boggy pools, edges of rivers and lakes, often with other duckweeds.

Locations

Allegan County
Bay County
Berrien County
Calhoun County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Only on Drummond Island
Clare County
Genesee County
Gogebic County
Gratiot County
Hillsdale County
Kalamazoo County
Kalkaska County
Kent County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Manistee County
Mason County
Monroe County
Muskegon County
Oakland County
Ottawa County
Shiawassee 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. August 21, 2017. http://michiganflora.net/species.aspx?id=183.