Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic
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17 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
254802 CTHartfordGrannis Lake2004 01100004 Quinnipiacestablished
260583 CTHartfordHamlin Pond, Plainville2004 01100004 Quinnipiacestablished
260598 CTHartfordHamlin Pond, Plainville2005 01100004 Quinnipiacestablished
260588 CTHartfordPaderewski Park Pond, Plainville2005 01100004 Quinnipiacestablished
1748823 CTNew Haven[No locality description provided]2022 01100004 Quinnipiac 
260601 CTNew HavenBranford Supply Pond, Supply Pond Park, Branford2005 01100004 Quinnipiacestablished
276701 CTNew HavenDayton Pond, Wallingford, Ct2005 01100004 Quinnipiaccollected
254820 CTNew HavenLake Saltonstall2004 01100004 Quinnipiacestablished
276709 CTNew HavenLake Saltonstall, Branford/East Haven, Ct2004 01100004 Quinnipiaccollected
260592 CTNew HavenLucky Pond, Peanuts Pond (Galko Farm Pond), Wallingford2005 01100004 Quinnipiacestablished
276708 CTNew HavenMackenzie Reservoir, Wallingford, Ct2005 01100004 Quinnipiaccollected
235041 CTNew HavenMeriden, unspecified pond2001 01100004 Quinnipiacestablished
235028 CTNew HavenOrange town, unspecified locality2001 01100004 Quinnipiacestablished
260608 CTNew HavenPistapaug Pond, Wallingford2005 01100004 Quinnipiacestablished
254814 CTNew HavenQuonnipaug Lake, Guilford town2004 01100004 Quinnipiacestablished
260589 CTNew HavenUlbrich Reservoir (William J. Ulbrich Reservoir), Wallingford2005 01100004 Quinnipiacestablished
276714 CTNew HavenUlbrich Reservoir, Wallingford, Ct2005 01100004 Quinnipiaccollected

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 [1/21/2026].

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.