Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
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363 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1847115 Eurasian watermilfoilORBaker[No locality description provided]2021 17050201 Brownlee Reservoir 
1847098 Eurasian watermilfoilORBakerBrownlee Reservoir2021 17050201 Brownlee Reservoir 
1847109 Eurasian watermilfoilORBakerBrownlee Reservoir2021 17050201 Brownlee Reservoir 
1847097 Eurasian watermilfoilORBakerBrownlee Reservoir2021 17050201 Brownlee Reservoir 
1847108 Eurasian watermilfoilORBakerBrownlee Reservoir2021 17050201 Brownlee Reservoir 
1760508 Eurasian watermilfoilORBenton[No locality description provided]1981 17090003 Upper Willamette 
1760694 Eurasian watermilfoilORBenton[No locality description provided]1981 17090003 Upper Willamette 
1820802 Eurasian watermilfoilORBenton[No locality description provided]2015 17090003 Upper Willamette 
1824183 Eurasian watermilfoilORBenton[No locality description provided]2016 17090003 Upper Willamette 
1823940 Eurasian watermilfoilORBenton[No locality description provided]2016 17090003 Upper Willamette 
1828067 Eurasian watermilfoilORBenton[No locality description provided]2018 17090003 Upper Willamette 
1828116 Eurasian watermilfoilORBenton[No locality description provided]2018 17090003 Upper Willamette 
229348 Eurasian watermilfoilORBentonBenton County1983 Unknown or N/Aestablished
859064 Eurasian watermilfoilORBentonCorvallis1981 17090003 Upper Willametteestablished
859043 Eurasian watermilfoilORBentonCorvallis1981 17090003 Upper Willametteestablished
246165 Eurasian watermilfoilORBentonPrivate farm pond, Reservoir Road off of 53rd St.1981 17090003 Upper Willamettecollected
1820738 Eurasian watermilfoilORBentonWillamette River2015 17090003 Upper Willamette 
1820801 Eurasian watermilfoilORBentonWillamette River2015 17090003 Upper Willamette 
1824181 Eurasian watermilfoilORBentonWillamette River2016 17090003 Upper Willamette 
1824182 Eurasian watermilfoilORBentonWillamette River2016 17090003 Upper Willamette 
1820734 Eurasian watermilfoilORClackamas[No locality description provided]2015 17090007 Middle Willamette 
1820736 Eurasian watermilfoilORClackamas[No locality description provided]2015 17090007 Middle Willamette 
1820735 Eurasian watermilfoilORClackamas[No locality description provided]2015 17090007 Middle Willamette 
1820733 Eurasian watermilfoilORClackamas[No locality description provided]2015 17090007 Middle Willamette 
1823983 Eurasian watermilfoilORClackamas[No locality description provided]2016 17090007 Middle Willamette 
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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.

Disclaimer:

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/14/2025].

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