Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic
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1421 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1887061 CTFairfield[No locality description provided]2020 01100006 Saugatuck 
1890693 CTFairfield[No locality description provided]2025 01100006 Saugatuck 
1892166 CTFairfield[No locality description provided]2025 01100006 Saugatuck 
1892167 CTFairfield[No locality description provided]2025 01100006 Saugatuck 
1890622 CTFairfield[No locality description provided]2025 01100006 Saugatuck 
235023 CTFairfieldBall Pond,New Fairfield2001 01100005 Housatonicestablished
235029 CTFairfieldBall Pond,New Fairfield2001 01100005 Housatonicestablished
260607 CTFairfieldBall Pond,New Fairfield2005 01100005 Housatonicestablished
235033 CTFairfieldBunnells Pond, Bridgeport2001 01100006 Saugatuckestablished
235048 CTFairfieldCandlewood Lake, Danbury2001 01100005 Housatonicestablished
235018 CTFairfieldCandlewood Lake, Danbury2001 01100005 Housatonicestablished
260593 CTFairfieldCandlewood Lake, Danbury2005 01100005 Housatonicestablished
235020 CTFairfieldDanbury town, Lake Kenosia2001 01100005 Housatonicestablished
254808 CTFairfieldDanbury town, Lake Kenosia2004 01100005 Housatonicestablished
260610 CTFairfieldHousatonic River, Millford2007 01100005 Housatonicestablished
260597 CTFairfieldLake Housatonic, Derby2005 01100005 Housatonicestablished
276705 CTFairfieldLake Kenosia, Danbury, Ct2004 01100005 Housatoniccollected
235040 CTFairfieldLake Lillinonah, Newtown town2001 01100005 Housatonicestablished
228970 CTFairfieldMamanasco Lake, Ridgefield1995 02030101 Lower Hudsonestablished
235019 CTFairfieldMamanasco Lake, Ridgefield2001 02030101 Lower Hudsonestablished
260600 CTFairfieldMamanasco Lake, Ridgefield2005 02030101 Lower Hudsonestablished
1692239 CTFairfieldNorth and South beaches on [Green] Pond2014 01100005 Housatonicestablished
1409855 CTFairfieldoff of rte. 39 in New Fairfield2005 01100005 Housatonicunknown
235050 CTFairfieldPutnam Lake, Greenwich2001 01100006 Saugatuckestablished
235034 CTFairfieldPutnam Park Pond Redding2001 01100006 Saugatuckestablished
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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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/21/2026].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

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