Myriophyllum spicatum

Eurasian watermilfoil

Collection Information for Myriophyllum spicatum

Results limited to HUC #04010201.
To see the collection list for the entire Great Lakes region, click here.
 To see the collection list for the entire United States, click here.
 Results also available in (click to export table to spreadsheet)

(click table headers to sort)
Specimen IDStateCountyLocalityYearHUC NumberDrainage NameStatus
168466WIDouglasBarkers Island Marina, Superior Bay, WI200604010201St. Louisestablished
1418771WIDouglasSt. Louis River, N of Spirit Lake, E of Smithville Park201704010201St. Louisestablished
1873731WIDouglasSuperior202404010201St. Louis 
1873732WIDouglasSuperior202404010201St. Louis 
1873733WIDouglasSuperior202404010201St. Louis 
1873734WIDouglasSuperior202404010201St. Louis 
1873737WIDouglasSuperior202404010201St. Louis 
1873738WIDouglasSuperior202404010201St. Louis 
1873739WIDouglasSuperior202404010201St. Louis 
1873740WIDouglasSuperior202404010201St. Louis 
1873753WIDouglasSuperior202404010201St. Louis 
1873754WIDouglasSuperior202404010201St. Louis 
1873755WIDouglasSuperior202404010201St. Louis 
1873756WIDouglasSuperior202404010201St. Louis 
1873757WIDouglasSuperior202404010201St. Louis 
1873758WIDouglasSuperior202404010201St. Louis 
1873759WIDouglasSuperior202404010201St. Louis 
1873760WIDouglasSuperior202404010201St. Louis 
1873761WIDouglasSuperior202404010201St. Louis 

Citation for this information:
U.S. Geological Survey, 2025, Myriophyllum spicatum: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/17/2025