Najas marina

Holly-leaf waternymph

Collection Information for Najas marina

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
1427438WISheboyganSeven mile creek201504030101Manitowoc-Sheboyganestablished
1423444WISheboyganUnnamed tributary201504030101Manitowoc-Sheboyganestablished
1427162WISheboyganRandom Lake201504040003Milwaukeeestablished
1427361WIWinnebagoRush Lake201404030201Upper Foxestablished
1425746WIWashingtonLittle Cedar Lake201504040003Milwaukeeestablished
1425858WIWashingtonLucas Lake201704040003Milwaukeeestablished
1655357WIAdamsCrooked Lake201404030201Upper Foxestablished
1655358WIAdamsHill Lake201404030201Upper Foxestablished
1655359WIFond du LacRush Lake201404030201Upper Foxestablished
244462WIWashingtonSilver Lake201604040003Milwaukeeestablished
1423911WIShawanoWhite Lake201104030202Wolfestablished
244463WIGreen LakeGreen Lake199004030201Upper Foxunknown
1655364WIPortageLake Helen201804030202Wolfestablished
1655367WIShawanoWhite Clay Lake201704030202Wolfestablished
244464WISheboyganRandom Lake194104040003Milwaukeeestablished
1655373WISheboyganRandom Lake within city limits of Random Lake196804040003Milwaukeeestablished
244469WIWashingtonWallace Lake, SE end198804040003Milwaukeeunknown
1655378WIWashingtonGilbert Lake, swamp at the north end199304040003Milwaukeeunknown
1655386WIWinnebagoRush Lake198404030201Upper Foxestablished
1655387WIWinnebagoRush Lake198904030201Upper Foxestablished
1655388WIWinnebagoSE shore of Rush Lake near Fond du Lac County line 2.5 miles NNE of Ripon198604030201Upper Foxestablished

Citation for this information:
U.S. Geological Survey, 2026, Najas marina: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 2/13/2026