Myriophyllum heterophyllum
Myriophyllum heterophyllum
(variable-leaf watermilfoil)
Native Transplant

16 results for Myriophyllum heterophyllum (variable-leaf watermilfoil)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1256755 NHCheshireCheshire Pond1994 01070003 Contoocookestablished
254629 NHCheshireCheshire Pond, Jaffrey1995 01070003 Contoocookestablished
1256759 NHCheshireContoocook Lake1989 01070003 Contoocookestablished
229888 NHCheshireContoocook Lake, Jaffrey1989 01070003 Contoocookestablished
254700 NHCheshireContoocook Lake, Jaffrey2001 01070003 Contoocookestablished
256325 NHCheshireContoocook Lake, Jaffrey2008 01070003 Contoocookestablished
1256761 NHHillsboroughContoocook River2001 01070003 Contoocookestablished
1256809 NHHillsboroughOtter Pond2012 01070003 Contoocookestablished
1256776 NHHillsboroughPowder Mill Pond1997 01070003 Contoocookestablished
254635 NHHillsboroughPowder Mill Pond, Hancock2000 01070003 Contoocookestablished
1256760 NHMerrimackHopkinton Lake/Dam2001 01070003 Contoocookestablished
254634 NHMerrimackHopkinton Lake/Dam, Hopkinton2000 01070003 Contoocookestablished
1256800 NHMerrimackKimball Pond2004 01070003 Contoocookestablished
254757 NHMerrimackKimball Pond, Hopkinton1999 01070003 Contoocookestablished
254632 NHMerrimackLake Massasecum1995 01070003 Contoocookestablished
1256790 NHMerrimackMassasecum Lake1996 01070003 Contoocookestablished

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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/30/2021].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.