Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
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16 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1670652 CAMarin[No locality description provided]2014 18050005 Tomales-Drake Bays 
1677627 CAMarin[No locality description provided]2016 18050005 Tomales-Drake Bays 
1677748 CAMarin[No locality description provided]2017 18050005 Tomales-Drake Bays 
1671612 CAMarin[No locality description provided]2017 18050005 Tomales-Drake Bays 
1677805 CAMarin[No locality description provided]2017 18050005 Tomales-Drake Bays 
1673587 CAMarin[No locality description provided]2019 18050005 Tomales-Drake Bays 
252744 CAMarinAlpine Lake; Marin Municipal Water District; nw of Mount Tamalpais2004 18050005 Tomales-Drake Baysestablished
252748 CAMarinAlpine Lake; Marin Municipal Water District; nw of Mount Tamalpais2006 18050005 Tomales-Drake Baysestablished
252687 CAMarinBon Tempe Lake2002 18050005 Tomales-Drake Baysestablished
252740 CAMarinBon Tempe Lake2006 18050005 Tomales-Drake Baysestablished
1436116 CAMarinBon Tempe Reservoir.2008 18050005 Tomales-Drake Baysestablished
1436320 CAMarinFound in flooded gun pit in Battery Townsley2012 18050005 Tomales-Drake Baysestablished
252745 CAMarinKent Lake2002 18050005 Tomales-Drake Baysestablished
252746 CAMarinKent Lake2006 18050005 Tomales-Drake Baysestablished
252743 CAMarinLake Lagunitas2002 18050005 Tomales-Drake Baysestablished
252747 CAMarinLake Lagunitas2006 18050005 Tomales-Drake Baysestablished

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 [1/22/2026].

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