Trapa natans
Trapa natans
(water chestnut)

46 results for Trapa natans (water chestnut)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
860824 MDBaltimoreBird River1955 02060003 Gunpowder-Patapscoestablished
232124 MDBaltimoreBird River1955 02060003 Gunpowder-Patapscoestablished
860825 MDBaltimoreBird River1962 02060003 Gunpowder-Patapscoestablished
860826 MDBaltimoreBird River1964 02060003 Gunpowder-Patapscoestablished
232125 MDBaltimoreBird River1997 02060003 Gunpowder-Patapscoestablished
232126 MDBaltimoreBird River1999 02060003 Gunpowder-Patapscoestablished
1428112 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoeradicated
1428100 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoeradicated
1715072 MDBaltimoreBird River at Leslie Rd2023 02060003 Gunpowder-Patapsco 
1714232 MDBaltimoreBird River at Mallard Rd, Bird River Beach2023 02060003 Gunpowder-Patapsco 
1410168 MDBaltimoreBird River in the upper Gunpowder River, near private boat launch at end of Bird River Beach Rd, Middle River2015 02060003 Gunpowder-Patapscoestablished
1522800 MDBaltimoreBird River, Cove adjacent to Railroad Creek2018 02060003 Gunpowder-Patapscoestablished
1409950 MDBaltimoreBird River, Creek on south side of river2015 02060003 Gunpowder-Patapscoestablished
1409992 MDBaltimoreBird River, Creek on south side of river2016 02060003 Gunpowder-Patapscoestablished
860870 MDBaltimoreBird River, near Chase1954 02060003 Gunpowder-Patapscoestablished
860820 MDBaltimoreBird River, near Chase1999 02060003 Gunpowder-Patapscoestablished
862528 MDBaltimoreBird River, near Chase2014 02060003 Gunpowder-Patapscoestablished
1695187 MDBaltimoreCove west of Railroad Creek2020 02060003 Gunpowder-Patapscounknown
1715067 MDBaltimoreGunpowder Falls before Little Gunpowder Falls confluence2023 02060003 Gunpowder-Patapscoestablished
1714233 MDBaltimoreRailroad Creek, inlet west of Schaadts Rd2023 02060003 Gunpowder-Patapsco 
1695185 MDBaltimoreRailroad Creek, West Branch2020 02060003 Gunpowder-Patapscounknown
1695186 MDBaltimoreRailroad Creek, West Branch2020 02060003 Gunpowder-Patapscounknown
1715068 MDHarfordbetween Gunpowder Falls and Taylor Creek2023 02060003 Gunpowder-Patapsco 
1715069 MDHarfordbetween Gunpowder Falls and Taylor Creek2023 02060003 Gunpowder-Patapsco 
1715070 MDHarfordBetween Gunpowder Falls and Taylor Creek2023 02060003 Gunpowder-Patapsco 

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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/30/2024].

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