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

67 results for Hydrilla verticillata [monoecious] (monoecious hydrilla)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
877604 VAAlbemarleAlbemarle Lake2015 02080204 Rivannaestablished
877605 VAAlbemarleChris Greene Lake2015 02080204 Rivannaestablished
877740 VAAlbemarleSouth Fork Rivanna Reservoir2009 02080204 Rivannaestablished
1467886 VAAlexandriaPotomac River near Alexandria2018 02070010 Middle Potomac-Anacostia-Occoquanestablished
1401276 VAAmherstSweet Briar College Lower Lake2016 02080203 Middle James-Buffaloestablished
270976 VABedfordLeesville Lake2010 03010101 Upper Roanokeestablished
252512 VABedfordSmith Mountain Lake2007 03010101 Upper Roanokeestablished
230381 VACarolineAnna River, downstream from the dam at Lake Anna. Largely in Hanover/Spotsylvania counties, extending into Caroline County past the bridge at Rt 1, but, not extending further past the bridge at I-95.1989 02080106 Pamunkeyestablished
1634154 VACharles CityDockman Swamp; Jerdone's Big Woods, S of Co. Rt. 614 and E of Va. Rt. 155; P. O. Providence Forge2003 02080206 Lower Jamesestablished
1634153 VACharles CityWest side of Chickahominy River, ca. 1.2 km SW of Watts Point1996 02080206 Lower Jamesestablished
235614 VAChesapeakeCooper's Ditch, NE side of Hillwell bridge, City of Chesapeake2001 03010205 Albemarleestablished
269168 VAChesterfieldSouth East end of Swift Creek Reservoir near Harbour Ln2010 02080207 Appomattoxestablished
878023 VAChesterfieldSwift Creek Reservoir2009 02080207 Appomattoxestablished
271417 VAChesterfieldSwift Creek Reservoir2009 02080207 Appomattoxestablished
230365 VAChesterfield/PriAppomattox River, near intersection with the James River.1997 02080206 Lower Jamesestablished
228426 VADistrict of ColuPotomac River, along the George Washington Memorial Parkway1997 02070010 Middle Potomac-Anacostia-Occoquanestablished
230380 VAFairfaxBurke Lake reservoir.1986 02070010 Middle Potomac-Anacostia-Occoquanestablished
1462735 VAFairfaxDogue Creek, Potomac River2015 02070010 Middle Potomac-Anacostia-Occoquanestablished
1462731 VAFairfaxDogue Creek, Potomac River2015 02070010 Middle Potomac-Anacostia-Occoquanestablished
229950 VAFairfaxDyke Marsh, Potomac River.1982 02070010 Middle Potomac-Anacostia-Occoquanestablished
230371 VAFairfaxLake Barcroft [reservoir]1994 02070010 Middle Potomac-Anacostia-Occoquanestablished
230372 VAFairfaxLake Braddock [reservoir]1994 02070010 Middle Potomac-Anacostia-Occoquanestablished
1462740 VAFairfaxLittle Hunting Creek, Potomac River2015 02070010 Middle Potomac-Anacostia-Occoquanestablished
1462726 VAFairfaxLittle Hunting Creek, Potomac River2015 02070010 Middle Potomac-Anacostia-Occoquanestablished
228435 VAFairfaxPotomac River; bay near Belle Haven, south of Alexandria1982 02070010 Middle Potomac-Anacostia-Occoquanestablished

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 [9/19/2020].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.