Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)

283 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
213372 OH Lake Erie1983 04260000 Lake Erieestablished
229305 OH Middle Ohio-Racoon drainage1982 05090100 Middle Ohio-Raccoonestablished
1694123 OHAllenLima Lake2020 04100007 Auglaizeunknown
243911 OHAshlandAshland County2008 05040002 Mohicancollected
1705539 OHAshtabula[No locality description provided]2022 04110004 Grand 
1633599 OHAshtabula[Pymatuning Reservoir]2018 04260000 Lake Erieestablished
1633667 OHAshtabula[Pymatuning Reservoir]2019 04110003 Ashtabula-Chagrinestablished
243914 OHAshtabulaAshtabula County2008 Unknown or N/Aestablished
1694124 OHAshtabulaLake Village Campground Lake2020 05030102 Shenangounknown
1694125 OHAshtabulaLake Village Campground Lake2020 05030102 Shenangounknown
243989 OHAthensAthens County2008 05030204 Hockingcollected
1467377 OHAthensDow Lake2010 05030204 Hockingestablished
1467376 OHAthensLake Snowden2010 05030204 Hockingestablished
243766 OHAuglaizeAuglaize County2008 Unknown or N/Aestablished
1467402 OHBelmontPiedmont Lake South ramp2010 05040001 Tuscarawasestablished
243782 OHBrownBrown County2008 05090201 Ohio Brush-Whiteoakcollected
243974 OHCarrollCarroll County2008 05040001 Tuscarawascollected
1467401 OHCarrollLeesville2010 05040001 Tuscarawasestablished
1467404 OHCarrollLeesville Lake Petersburg Marina2010 05040001 Tuscarawasestablished
243772 OHClarkClark County2008 05080001 Upper Great Miami, Indiana, Ohiocollected
243777 OHClermontClermont County2008 05090202 Little Miamicollected
229321 OHClermontMiddle Ohio Region1985 05090202 Little Miamiestablished
243973 OHColumbianaColumbiana County2008 05030101 Upper Ohiocollected
1709443 OHCoshocton[No locality description provided]2022 05040003 Walhonding 
243983 OHCoshoctonCoshocton County2008 Unknown or N/Aestablished

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.


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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/26/2024].

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