Myriophyllum heterophyllum
Myriophyllum heterophyllum
(variable-leaf watermilfoil)
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Native Transplant
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10 results for Myriophyllum heterophyllum (variable-leaf watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1891208 CTNew London[No locality description provided]2025 01100001 Quinebaug River 
234909 CTNew LondonBillings Lake, north of N. Stonington1988 01100001 Quinebaug Riverestablished
234913 CTNew LondonGlasgo Pond, Griswold town2001 01100001 Quinebaug Riverestablished
234906 CTNew LondonHopeville Pond, Griswold town1997 01100001 Quinebaug Riverestablished
242045 CTNew LondonPachaug Pond1998 01100001 Quinebaug Riverestablished
261657 CTWindhamMoosup Pond, near Moosup2003 01100001 Quinebaug Riverestablished
261658 CTWindhamMoosup Pond, near Moosup2009 01100001 Quinebaug Riverestablished
1409834 CTWindhampond on Rhode Island Line Road (North)2003 01100001 Quinebaug Riverunknown
1695520 CTWindhamQuaddick Reservoir (Lake Quaddick)2021 01100001 Quinebaug Riverestablished
242043 CTWindhamQuaddick Reservoir, middle waterbody, just north of Baker Road Bridge1995 01100001 Quinebaug Riverestablished

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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