United States, Wisconsin, Polk, Horseshoe Lake, Polk/Barron Counties [Polk Co. from lat. long.]; shoreline around eastern bays and around "Mud Lake"
45 -92 47994
45 N, 092 W; T34N R15W sec12
Thick muck soil in and out of water <0.5 meters. Common assoc.: (Nymphaea odorata) white water lily, (Phalaris arundinacea) reed canary grass, (Typha latifolia) broad-leaved cattail, (Pontederia cordata) pickerelweed, (Schoenoplectus tabernaemontani) softstem bulrush