Hydrilla verticillata
Hydrilla verticillata

23 results for Hydrilla verticillata (hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1698826 MDBaltimore[No locality description provided]2022 02060003 Gunpowder-Patapsco 
1675567 MDBaltimoreBaltimore County, MD, USA2020 02060003 Gunpowder-Patapsco 
1655046 MDBaltimoreBaltimore County, MD, USA2020 02060003 Gunpowder-Patapscoestablished
1428102 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428109 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428114 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428121 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428122 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1679271 MDBaltimoreChase, MD 21220, USA2020 02060003 Gunpowder-Patapsco 
892665 MDBaltimoreLoch Raven Reservoir, in cove2015 02060003 Gunpowder-Patapscoestablished
1676436 MDBaltimoreLUTHVLE TIMON, MD 21093, USA2021 02060003 Gunpowder-Patapsco 
1679276 MDBaltimorePrettyboy Reservoir, Manchester, MD, US2020 02060003 Gunpowder-Patapsco 
1654940 MDBaltimoreSaltpeter Creek, Baltimore, MD, US2019 02060003 Gunpowder-Patapscoestablished
233803 MDBaltimore/HarforGunpowder River2000 02060003 Gunpowder-Patapscoestablished
232111 MDBaltimore-Harfortidal tributaries of the Gunpowder-Patapsco watershed2000 02060003 Gunpowder-Patapscoestablished
1701741 MDCarroll[No locality description provided]2022 02060003 Gunpowder-Patapsco 
1674723 MDCarroll9, Franklin, MD, USA2020 02060003 Gunpowder-Patapsco 
1654897 MDCarrollEldersburg, MD, USA2018 02060003 Gunpowder-Patapscoestablished
232121 MDCarrollPiney Run Reservoir1998 02060003 Gunpowder-Patapscoestablished
1677467 MDCarrollSykesville, MD 21784, USA2021 02060003 Gunpowder-Patapsco 
232340 MDHarfordBush River1996 02060003 Gunpowder-Patapscoestablished
232112 MDHarfordBush River2000 02060003 Gunpowder-Patapscoestablished
229839 MDHarfordConcord Point, Havre de Grace, area of Susquehanna Flats, underwater deltaic system of the Susquehanna River, head of the Chesapeake Bay1990 02060003 Gunpowder-Patapscoestablished

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 [2/29/2024].

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