Myriophyllum spicatum

Eurasian watermilfoil

Collection Information for Myriophyllum spicatum

Results limited to All Great Lakes Drainages.
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
243618MNSt. LouisLake Superior at Superior Bay along Minnesota Point (the cape)199904180000Lake Superiorcollected
283858MNCookLake Superior201004180000Lake Superiorestablished
235435MNSt. LouisGilbert Pit-Ore Be Lake199904010201St. Louisestablished
277632MNSt. LouisGilbert Pit-Ore Be Lake201004010201St. Louisestablished
235436MNSt. LouisHorseshoe Lake199904010201St. Louisestablished
277633MNSt. LouisHorseshoe Lake201004010201St. Louisestablished
263493MNCarltonChub Lake200904010301Beartrap-Nemadjiestablished
879783MNCarltonBear Lake, Carlton County, Barnum MN201504010301Beartrap-Nemadjiestablished
1422988MNSt. LouisSuperior Bay, Lake Superior200604180000Lake Superiorestablished
1606148MNSt. Louis[No locality description provided]201604010201St. Louisestablished
1610409MNSt. Louis[No locality description provided]201704010201St. Louisestablished
1873735MNSt. LouisSuperior202404010201St. Louis 
1873736MNSt. LouisSuperior202404010201St. Louis 
1873741MNSt. LouisSuperior202404010201St. Louis 
1873742MNSt. LouisSuperior202404010201St. Louis 
1873743MNSt. LouisSuperior202404010201St. Louis 
1873744MNSt. LouisSuperior202404010201St. Louis 
1873745MNSt. LouisSuperior202404010201St. Louis 
1873746MNSt. LouisSuperior202404010201St. Louis 
1873747MNSt. LouisSuperior202404010201St. Louis 
1873748MNSt. LouisSuperior202404010201St. Louis 
1873749MNSt. LouisSuperior202404010201St. Louis 
1873750MNSt. LouisSuperior202404010201St. Louis 
1873751MNSt. LouisSuperior202404010201St. Louis 
1873752MNSt. LouisSuperior202404010201St. Louis 
1873762MNSt. LouisSuperior202404010201St. Louis 
1885331MNSt. LouisGilbert Pit201704010201St. Louisestablished

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: 12/18/2025