Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
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7 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1713648 Eurasian watermilfoilIADickinsonEast Okoboji Lake, Dickinson County, Iowa2022 10230003 Little Sioux 
1713649 Eurasian watermilfoilIADickinsonLower Gar Lake, Milford, Iowa2022 10230003 Little Sioux 
1713651 Eurasian watermilfoilIADickinsonMinnewashta Lake, Okoboji, Iowa2022 10230003 Little Sioux 
1713650 Eurasian watermilfoilIADickinsonUpper Gar Lake, Okoboji, Iowa2022 10230003 Little Sioux 
263052 Eurasian watermilfoilIAO'BrienMill Creek Lake, Mill Creek State Park2009 10230003 Little Siouxestablished
1884078 hybrid watermilfoilIAO'BrienMill Creek State Park Pond2023 10230003 Little Siouxestablished
1884058 Eurasian watermilfoilIAPalo AltoLost Island Lake2023 10230003 Little Siouxestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/19/2026].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.