Hydrilla verticillata
Hydrilla verticillata
(hydrilla)
Plants
Exotic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

2461 results for Hydrilla verticillata (hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1523973 CTHartford[Keeney Cove]2016 01080205 Outlet Connecticut Riverestablished
1740667 CTHartford[No locality description provided]2016 01080205 Outlet Connecticut River 
1679189 CTHartford[No locality description provided]2020 01080205 Outlet Connecticut River 
1676458 CTHartford[No locality description provided]2020 01080205 Outlet Connecticut River 
1679992 CTHartford[No locality description provided]2021 01080205 Outlet Connecticut River 
1698544 CTHartford[No locality description provided]2022 01080205 Outlet Connecticut River 
1699702 CTHartford[No locality description provided]2022 01080205 Outlet Connecticut River 
1728561 CTHartford[No locality description provided]2023 01080205 Outlet Connecticut River 
1752675 CTHartford[No locality description provided]2024 01080205 Outlet Connecticut River 
1739657 CTHartford[No locality description provided]2024 01080205 Outlet Connecticut River 
1689819 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689820 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689813 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689814 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689815 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689816 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689817 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689818 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689822 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689823 CTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1691083 CTHartfordConnecticut River2020 01080205 Outlet Connecticut Riverestablished
1691084 CTHartfordConnecticut River2020 01080205 Outlet Connecticut Riverestablished
1691085 CTHartfordConnecticut River2020 01080205 Outlet Connecticut Riverestablished
1691086 CTHartfordConnecticut River2020 01080205 Outlet Connecticut Riverestablished
1690031 CTHartfordConnecticut River2020 01080205 Outlet Connecticut Riverestablished
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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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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