Myriophyllum spicatum

Eurasian watermilfoil

Collection Information for Myriophyllum spicatum

Results limited to HUC #04190000.
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
283675WIKenoshaLake Michigan, Kenosha Harbor, Kenosha WI200404190000Lake Michiganestablished
253315WIKenoshaLake Michigan, Kenosha Water, Kenosha, Wisconsin197804190000Lake Michigancollected
253471WISheboyganLake Michigan, Sheboygan County197804190000Lake Michigancollected
231524WIBrownGreen Bay (between Long Tail and Little Tail points)199804190000Lake Michiganestablished
231039WIDoorMoonlight Bay, Lake Michigan199804190000Lake Michiganestablished
231040WIDoorNorth Bay, Lake Michigan199804190000Lake Michiganestablished
231041WIDoorRowley Bay, Lake Michigan199804190000Lake Michiganestablished
231531WIOcontoLake Michigan in Green Bay (north of Oconto River)199804190000Lake Michiganestablished
253302WIDoorGreen Bay197904190000Lake Michigancollected
253318WIKenoshaSouthport Marina - Lake Michigan199904190000Lake Michiganestablished
253321WIKewauneeGreen Bay197904190000Lake Michiganestablished
253322WIKewauneeLake Michigan197804190000Lake Michiganestablished
253351WIManitowocLake Michigan197804190000Lake Michigancollected
253385WIMarinetteLake Michigan in Green Bay197904190000Lake Michigancollected
253441WIOzaukeeLake Michigan197804190000Lake Michigancollected
1424566WISheboyganLake Michigan197804190000Lake Michiganestablished
1425950WIDoorMackaysee Lake201204190000Lake Michiganestablished
1426859WIMarinettePeshtigo River199504190000Lake Michiganestablished
1427366WIDoorRowley Bay (NE Shore), Lk Michigan197804190000Lake Michiganestablished
1427700WIDoorRowley Bay (NW Shore), Lk Michigan197804190000Lake Michiganestablished
1427359WIDoorRowley Bay (W Shore), Lk Michigan198404190000Lake Michiganestablished
1423289WIKenoshaUnnamed200404190000Lake Michiganestablished
1556524WIKenosha[No locality description provided]201304190000Lake Michiganestablished
1557259WISheboygan[No locality description provided]201304190000Lake Michiganestablished
1563253WISheboygan[No locality description provided]201404190000Lake Michiganestablished
1564152WIBrown[No locality description provided]201404190000Lake Michiganestablished
1558499WIBrown[No locality description provided]201304190000Lake Michiganestablished
1564156WIKewauneeLake Michigan, Green Bay [No locality description provided]201404190000Lake Michiganestablished
1558524WIKewauneeLake Michigan, Green Bay [No locality description provided]201304190000Lake Michiganestablished
1558594WIOconto[No locality description provided]201304190000Lake Michiganestablished
1564321WIOcontoLake Michigan, Green Bay [No locality description provided]201404190000Lake Michiganestablished
1558823WIOcontoLake Michigan, Green Bay [No locality description provided]201304190000Lake Michiganestablished
1559149WIMarinette[No locality description provided]201304190000Lake Michiganestablished
1564465WIDoor[No locality description provided]201404190000Lake Michiganestablished
1559151WIDoor[No locality description provided]201304190000Lake Michiganestablished
1559218WIDoor[No locality description provided]201304190000Lake Michiganestablished
1559535WIDoor[No locality description provided]201304190000Lake Michiganestablished
1564568WIDoor[No locality description provided]201404190000Lake Michiganestablished
1562134WIKenosha[No locality description provided]201404190000Lake Michiganestablished
1564525WIDoor[No locality description provided]201404190000Lake Michiganestablished
1601118WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601119WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601120WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601121WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601122WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601126WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601127WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601128WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601129WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601130WIMarinette[No locality description provided]201204190000Lake Michiganestablished
1601188WIDoor[No locality description provided]201204190000Lake Michiganestablished
1601189WIDoor[No locality description provided]201204190000Lake Michiganestablished
1601190WIDoor[No locality description provided]201204190000Lake Michiganestablished
1601192WIDoor[No locality description provided]201204190000Lake Michiganestablished
1873219WIBrownGreen Bay202304190000Lake Michigan 

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