Potamogeton foliosus Raf.
Common Name: LEAFY PONDWEED
Coefficient of Conservatism: 4
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb

Shallow to deep water (recorded to 3.7 m) of lakes, ponds, rivers, and streams; sometimes rooted in organic mud of bog lakes.

Some vegetative specimens cannot be reliably distinguished from P. pusillus. Potamogeton pusillus can supposedly be identified vegetatively by the presence of glands on the stem at the base of the leaves, but in our specimens (including good fruiting ones), such glands are usually absent, weak, or obscure.

Locations

Alcona County
Alger County
Allegan County
Arenac County
    Only on Charity Island
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clare County
Clinton County
Crawford County
Delta County
Dickinson County
Emmet County
Genesee County
Gladwin County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Ingham County
Ionia County
Iosco County
Iron County
Isabella County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lapeer County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Lenawee County
Livingston County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Marquette County
Menominee County
Midland County
Monroe County
Montcalm County
Montmorency County
Newaygo County
Oakland County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Schoolcraft County
Shiawassee County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County
Wayne County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2017. http://michiganflora.net/species.aspx?id=2325.