Hydrilla verticillata
Hydrilla verticillata
(hydrilla)
Plants
Exotic
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2486 results for Hydrilla verticillata (hydrilla)
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Click here for listing in all states

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Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1892871 wandering hydrillaCTFairfield[No locality description provided]2025 01100005 Housatonic 
877579 wandering hydrillaCTFairfieldCrystal Lake (Held Pond)2009 01100006 Saugatuckestablished
1715818 wandering hydrillaCTFairfieldMeckauer Park2023 01100005 Housatonicestablished
877578 wandering hydrillaCTFairfieldSilvermine River2007 01100006 Saugatuckestablished
270050 wandering hydrillaCTFairfieldSilvermine River2009 01100006 Saugatuckestablished
1523973 northern hydrillaCTHartford[Keeney Cove]2016 01080205 Outlet Connecticut Riverestablished
1740667 northern hydrillaCTHartford[No locality description provided]2016 01080205 Outlet Connecticut River 
1679189 northern hydrillaCTHartford[No locality description provided]2020 01080205 Outlet Connecticut River 
1676458 northern hydrillaCTHartford[No locality description provided]2020 01080205 Outlet Connecticut River 
1679992 northern hydrillaCTHartford[No locality description provided]2021 01080205 Outlet Connecticut River 
1698544 northern hydrillaCTHartford[No locality description provided]2022 01080205 Outlet Connecticut River 
1699702 northern hydrillaCTHartford[No locality description provided]2022 01080205 Outlet Connecticut River 
1728561 northern hydrillaCTHartford[No locality description provided]2023 01080205 Outlet Connecticut River 
1752675 northern hydrillaCTHartford[No locality description provided]2024 01080205 Outlet Connecticut River 
1739657 northern hydrillaCTHartford[No locality description provided]2024 01080205 Outlet Connecticut River 
1689822 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689818 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689817 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689813 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689823 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689820 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689819 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689814 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689815 northern hydrillaCTHartfordConnecticut River2018 01080205 Outlet Connecticut Riverestablished
1689816 northern hydrillaCTHartfordConnecticut River2018 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.