Taxon:Zannichellia palustris L. Family: Potamogetonaceae
Christian, John R. s.n.
Verbatim Date: 1974-6-18
United States, Wisconsin, Dodge, Township of Williamstown; Horicon Marsh Wildlife Area.
43.4659404° N, 88.6325271° W; T12N R16E sec31
In a newly created impoundment. With Chara vulgaris and Potamogeton spp. Growing in an open bay, no flow, little turbidity, and in approx. 2 ft. of water in a typical rich organic marsh amd its sediments.