United States, Wisconsin, Barron, Beaver Dam Lake
T35N R13W sec06
Located floating at or just under the surface in sheltered areas. Common assoc.: (Nymphaea odorata) white water lily, (Nuphar variegata) spatterdock, (Spirodela polyrhiza) large duckweed, (Riccia fluitans) slender riccia, (Ricciocarpus natans) purple-fringe, (Lemna trisulca) forked duckweed
Present in most sheltered areas interspersed between the lilypads.