Hydrilla verticillata
Hydrilla verticillata

115 results for Hydrilla verticillata (hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1634135 PAAdamsLake Meade2004 02050306 Lower Susquehannaestablished
1677376 PAAlleghenyNorth Park Lake, Allison Park, PA, US2021 05010009 Lower Alleghenyunknown
1634143 PAAlleghenyNorth Park, Pierce Mill Rd, NW of Babcock Blvd, McCandless Twp2018 05010009 Lower Alleghenyestablished
1634141 PAAlleghenyPine Creek downstream of Wildwood Rd & Best Feeds Garden Center at fishing access, Gibsonia2018 05010009 Lower Alleghenyestablished
230670 PABradfordHighland Lake, impoundment on Southwick Creek, a tributary to Gaylord Creek (lake private), Warren Twp1996 02050106 Upper Susquehanna-Tunkhannockestablished
1675309 PABucks1542 Mountain View Dr, Quakertown, PA 18951, USA2020 02040105 Middle Delaware-Musconetcongunknown
1654583 PABucksBucks County, PA, USA2020 02040201 Crosswicks-Neshaminyestablished
1680049 PABucksBucks County, PA, USA2021 02040105 Middle Delaware-Musconetcongunknown
232853 PABucksLake Nockamixon1998 02040105 Middle Delaware-Musconetcongestablished
231670 PABucksLake Nockamixon, about 3.4 kilometers northwest of Ottsville, in drowned portion of Haycock Creek1998 02040105 Middle Delaware-Musconetcongestablished
1675673 PABucksLake Nockamixon, Quakertown, PA, US2020 02040105 Middle Delaware-Musconetcongunknown
1649602 PABucksRalph Stover State Park2018 02040105 Middle Delaware-Musconetcongestablished
1422122 PAButlerBear Run Campground pond, due east of campground2017 05030105 Connoquenessingestablished
1333235 PAButlerOff Barkley Road (Lake Arthur, Butler County)2015 05030105 Connoquenessingestablished
1679954 PAButlerWorth Township, PA, USA2021 05030105 Connoquenessingunknown
1675014 PACambriaCambria County, PA, USA2020 02050201 Upper West Branch Susquehannaunknown
1634139 PACambriaGlendale Lake, Prince Gallitzen State Park2014 02050201 Upper West Branch Susquehannaestablished
1679200 PACambriaprince gallitzin state park2020 02050201 Upper West Branch Susquehannaunknown
1654338 PAChester1340 S Concord Rd, West Chester, PA, US2019 02040202 Lower Delawareestablished
1677312 PAChesterChester County, PA, USA2021 02040205 Brandywine-Christinaunknown
1651346 PAChesterMarsh Creek Reservoir2019 02040205 Brandywine-Christinaestablished
1634133 PAChesterMarsh Creek State Park, Marsh Creek Reservoir2006 02040205 Brandywine-Christinaestablished
1654372 PAClarion[Kahle Lake]2019 05010003 Middle Allegheny-Tionestaestablished
1333264 PACrawfordmarina on West Lake Road on the extreme southwest end of Pymatuning Reservoir.2015 05030102 Shenangoestablished
1333243 PACrawfordPymatuning Reservoir - Main Section (CRAWFORD)2010 05030102 Shenangoestablished

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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [8/8/2022].

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