Hydrilla verticillata [monoecious]
Hydrilla verticillata [monoecious]
(monoecious hydrilla)

12 results for Hydrilla verticillata [monoecious] (monoecious hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1428121 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428102 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428114 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428109 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
1428122 MDBaltimoreBird River2017 02060003 Gunpowder-Patapscoestablished
892665 MDBaltimoreLoch Raven Reservoir, in cove2015 02060003 Gunpowder-Patapscoestablished
233803 MDBaltimore/HarforGunpowder River2000 02060003 Gunpowder-Patapscoestablished
232111 MDBaltimore-Harfortidal tributaries of the Gunpowder-Patapsco watershed2000 02060003 Gunpowder-Patapscoestablished
232121 MDCarrollPiney Run Reservoir1998 02060003 Gunpowder-Patapscoestablished
232340 MDHarfordBush River1996 02060003 Gunpowder-Patapscoestablished
232112 MDHarfordBush River2000 02060003 Gunpowder-Patapscoestablished
229839 MDHarfordConcord Point, Havre de Grace, area of Sesquehanna Flats, underwater deltaic system of the Sesquehanna 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. [2020]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [8/12/2020].

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