University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)
UWSP149558
ba699ae2-6ef9-4739-a475-9ce89407cce6
Spirodela polyrrhiza (L.) Schleid.
Araceae
Berg, Matthew S.
2008-141
2008-07-20
United States, Wisconsin, Sawyer, Chetac Lake
45.74806 -91.46698
45.74806° N, 91.46698° W; T38N R09W sec27
Located floating or just under the surface in stagnant bays. Common assoc.: (Nymphaea odorata) white water lily, (Nuphar variegata) spatterdock, (Ceratophyllum demersum) coontail, (Potamogeton pusillus) small pondweed.
Common, but less so than small duckweed. Scattered individuals occur interspersed between the lilypads and wild rice beds.