Myriophyllum heterophyllum
Myriophyllum heterophyllum
(variable-leaf watermilfoil)
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Native Transplant
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7 results for Myriophyllum heterophyllum (variable-leaf watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1256745 NHCheshireAshuelot River2000 01080201 Ashuelot River-Connecticut Riverestablished
254636 NHCheshireAshuelot River, Winchester2000 01080201 Ashuelot River-Connecticut Riverestablished
1633830 NHCheshireDublin Lake2001 01080201 Ashuelot River-Connecticut Riverestablished
254731 NHCheshireDublin Lake (Pond), Dublin2001 01080201 Ashuelot River-Connecticut Riverestablished
1256765 NHCheshireForest Lake1998 01080201 Ashuelot River-Connecticut Riverestablished
254631 NHCheshireForest Lake, Winchester1998 01080201 Ashuelot River-Connecticut Riverestablished
256322 NHCheshireForest Lake, Winchester2008 01080201 Ashuelot River-Connecticut 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 [2/21/2026].

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