Common Name:
WHITE-STEMMED PONDWEED
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Coefficient of Conservatism:
8
Coefficient of Wetness:
-5
Wetness Index:
OBL
Physiognomy:
Nt P-Forb
B. S. Walters
Usually in lakes (including the Great Lakes), often in deep water (to 6.7 m), less frequently in rivers.
The leaves of this species are often merely subcordate and sessile in contrast to those of P. richardsonii and P. perfoliatus, which are strongly clasping. See also comments under P. amplifolius.
Locations
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Alcona County
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Alger County
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Allegan County
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Baraga County
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Barry County
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Benzie County
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Cass County
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Charlevoix County
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Including Beaver Island
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Cheboygan County
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Chippewa County
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Clare County
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Clinton County
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Delta County
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Dickinson County
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Emmet County
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Gogebic County
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Grand Traverse County
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Gratiot County
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Houghton County
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Ingham County
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Iron County
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Jackson County
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Kalamazoo County
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Kent County
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Keweenaw County
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Including Isle Royale
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Lake County
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Leelanau County
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Including Manitou Islands
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Lenawee County
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Livingston County
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Luce County
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Mackinac County
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Marquette County
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Mason County
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Mecosta County
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Menominee County
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Missaukee County
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Montcalm County
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Montmorency County
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Muskegon County
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Newaygo County
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Oakland County
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Ogemaw County
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Osceola County
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Otsego County
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Presque Isle County
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Roscommon County
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Schoolcraft County
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St. Joseph County
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Van Buren County
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Washtenaw County
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Wexford County
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Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 24, 2019. https://michiganflora.net/species.aspx?id=2335.