Locality:
United States, Wisconsin, Dodge, Williams Town [Williamstown]. Horicon Wildlife Area
Verbatim Coordinates:
T12N R16E sec31
Habitat:
In open water ditch. Common assoc. Ceratophyllum and Utricularia.
Occurrence Remarks:
Abundant, about 3.6 ft. height of stem, 3.1 ft. is height of flower. Sheet 2 of 2. [All data from UWSP050948_A; nothing on this sheet except accession number].