United States, Michigan, Ontonagon, T51N, R40W, E side of SE1/4 SW1/4 Section 6. Little Cranberry River. 46°50'21"N, 89°25'46"W (NAD 27).
46.8391667 -89.4294444
The dominant along this slow-flowing section of river. Rooted in about 0.5 m of water, in nearly full sun. Associates include scattered patches of Elodea canadensis and Utricularia vulgaris.
sheet - 1
"Only a small percentage of plants flowering, these along the edges."