United States, Wisconsin, Burnett, Yellow Lake
45.90398° N, 92.38978° W; T40N R16W sec31
Located floating or just under the surface in sheltered areas. Common assoc.: (Nymphaea odorata) white water lily, (Nuphar variegata) spatterdock, (Wolffia columbiana) common watermeal, (Lemna minor) small duckweed.
Scattered individuals occur interspersed between the lilypads in both lakes; especially in stagnant areas in the boat channels on lake.