United States, Minnesota, Dakota, In Gores Pool #3 Wildlife Management Area, Floodplain between the Mississippi River to the north and the Vermillion River to the south. Three miles east of Highway 61 and 0.2 miles northeast of the floodplain forest's south edge.
44.725467 -92.789152 +-278m. WGS84
T115N R16W sec31
in a seasonally inundated pond surrounded by floodplain forest.
In saturated muck.
Associates include Bidens frondosa, Polygonum coccineum, and Sagittaria latifolia.