Trapa natans
Trapa natans
(water chestnut)
Plants
Exotic
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9 results for Trapa natans (water chestnut)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1673738 MAEssex[No locality description provided]2015 01070006 Merrimack River 
1890655 MAEssex[No locality description provided]2023 01070006 Merrimack River 
1888388 MAEssex[No locality description provided]2024 01070006 Merrimack River 
1891442 MAEssex[No locality description provided]2025 01070006 Merrimack River 
1321023 MAEssexClarks Pond, Amesbury2007 01070006 Merrimack Riverestablished
1730692 MAMiddlesex[No locality description provided]2021 01070006 Merrimack River 
1321147 MAMiddlesexFlint Pond, Tyngsboro2015 01070006 Merrimack Riverestablished
1321253 MAMiddlesexLong Pond, Tewksbury2016 01070006 Merrimack Riverestablished
1409927 MAMiddlesexMinute Man National Historical Park1998 01070006 Merrimack Riverunknown

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 [1/31/2026].

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