Najas minor
Najas minor
(brittle waternymph)

27 results for Najas minor (brittle waternymph)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
228834 MD tidal tributaries of upper Chesapeake Bay1985 02060000 Upper Chesapeakeestablished
1320958 MDAlleganyLake Habeeb. Rocky Gap State Park2014 02070002 North Branch Potomacestablished
1320959 MDAlleganyTown Creek2014 02070003 Cacapon-Townestablished
234360 MDAnne ArundelPatuxent River at Route 4 bridge, Waysons Corner near Mill Creek1982 02060006 Patuxentunknown
1654904 MDBaltimoreBear Creek, Baltimore, MD, US2018 02060003 Gunpowder-Patapscoestablished
1321002 MDBaltimoreLoch Raven Reservoir, near the picnic grounds N of Morgan Mill Rd.1962 02060003 Gunpowder-Patapscounknown
1320960 MDCecilBohemia River. Kayak put-in on the Bohemia River beside the bridge2014 02060002 Chester-Sassafrasestablished
1320961 MDCecilElk River near the boat ramp at Elk Neck State Park2014 02060002 Chester-Sassafrasestablished
1655033 MDCecilMarina Park, Port Deposit, MD, US2020 02050306 Lower Susquehannaestablished
1655036 MDCecilPerryville Community Park, North East, MD, US2020 02060002 Chester-Sassafrasestablished
1695174 MDCharlesGreenway Flats, Potomac River2019 02070010 Middle Potomac-Anacostia-Occoquanunknown
1695179 MDCharlesGreenway Flats, Potomac River2019 02070010 Middle Potomac-Anacostia-Occoquanunknown
1695182 MDCharlesGreenway Flats, Potomac River2019 02070010 Middle Potomac-Anacostia-Occoquanunknown
230259 MDCharlesMiddle Potomac1988 02070011 Lower Potomacestablished
1409959 MDFrederickCunningham Falls State Park2016 02070009 Monocacyestablished
1695200 MDFrederickCunninham Falls State Park, Hunting Creek Lake2020 02070009 Monocacyunknown
1671074 MDGarrettDeep Creek Lake, Maryland, USA2017 05020006 Youghiogheny 
1409972 MDGarrettDeep Creek Lake, MD (Arrowhead Cove)2015 05020006 Youghioghenyestablished
1409973 MDGarrettNew Germany State Park2016 02070002 North Branch Potomacestablished
1677399 MDKentMillington, MD 21651, USA2021 02060002 Chester-Sassafras 
1409960 MDMontgomerySeneca Creek State Park2016 02070008 Middle Potomac-Catoctinestablished
1321003 MDPrince George'sIn Potomac River at National Harbor near Woodrow Wilson Bridge2009 02070010 Middle Potomac-Anacostia-Occoquanestablished
1320962 MDPrince George'sLake Artemesia2014 02070010 Middle Potomac-Anacostia-Occoquanestablished
1323004 MDPrince George'sPiscataway Creek, W of Piscataway Park2015 02070010 Middle Potomac-Anacostia-Occoquanestablished
230258 MDPrince Georges/CPotomac River1987 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. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/10/2023].

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