Hydrilla verticillata
Hydrilla verticillata
(hydrilla)
Plants
Exotic
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Impacts

17 results for Hydrilla verticillata (hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1890097 PAAllegheny[No locality description provided; coordinates obscured by collector]2025 05010009 Lower Allegheny 
1758581 PAAllegheny[No locality description provided]2016 05010009 Lower Allegheny 
1838474 PAAllegheny[No locality description provided]2020 05010009 Lower Allegheny 
1843928 PAAllegheny[No locality description provided]2021 05010009 Lower Allegheny 
1677376 PAAllegheny[No locality description provided]2021 05010009 Lower Allegheny 
1705536 PAAllegheny[No locality description provided]2022 05010009 Lower Allegheny 
1750367 PAAllegheny[No locality description provided]2023 05010009 Lower Allegheny 
1887564 PAAllegheny[No locality description provided]2023 05010009 Lower Allegheny 
1888687 PAAllegheny[No locality description provided]2024 05010009 Lower Allegheny 
1751841 PAAllegheny[No locality description provided]2024 05010009 Lower Allegheny 
1751938 PAAllegheny[No locality description provided]2024 05010009 Lower Allegheny 
1752075 PAAllegheny[No locality description provided]2024 05010009 Lower Allegheny 
1890680 PAAllegheny[No locality description provided]2025 05010009 Lower Allegheny 
1891622 PAAllegheny[No locality description provided]2025 05010009 Lower Allegheny 
1838436 PAAlleghenyMarshall Lake (ALLEGHENY)2020 05010009 Lower Allegheny 
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

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.

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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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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