Hydrilla verticillata verticillata
Hydrilla verticillata verticillata
(whorled hydrilla)

599 results for Hydrilla verticillata verticillata (whorled hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
230744 TXAndersonPalestine City Lakes1996 12020001 Upper Nechesestablished
1421208 TXAngelina[Locality description not provided]2011 12020005 Lower Angelinaunknown
1699971 TXAngelina[No locality description provided]2021 12020005 Lower Angelina 
1701650 TXAngelina[No locality description provided]2022 12020005 Lower Angelina 
1650631 TXAngelinaKurth Lake area2019 12020005 Lower Angelinaestablished
1470961 TXAngelinaKurth Reservoir1999 12020005 Lower Angelinaestablished
1470863 TXAngelinaKurth Reservoir2002 12020005 Lower Angelinaestablished
1470929 TXAngelinaKurth Reservoir2010 12020005 Lower Angelinaestablished
1471060 TXAngelinaKurth Reservoir2011 12020005 Lower Angelinaestablished
1470962 TXAngelinaKurth Reservoir2012 12020005 Lower Angelinaestablished
1470864 TXAngelinaKurth Reservoir2013 12020005 Lower Angelinaestablished
1470930 TXAngelinaKurth Reservoir2014 12020005 Lower Angelinaestablished
213814 TXAngelinaSam Rayburn Reservoir1991 12020005 Lower Angelinaestablished
229802 TXAngelinaSam Rayburn Reservoir1995 12020005 Lower Angelinaestablished
1471155 TXAngelinaSam Rayburn Reservoir2009 12020005 Lower Angelinaestablished
1471046 TXAngelinaSam Rayburn Reservoir2010 12020005 Lower Angelinaestablished
1470948 TXAngelinaSam Rayburn Reservoir2011 12020005 Lower Angelinaestablished
1471014 TXAngelinaSam Rayburn Reservoir2012 12020005 Lower Angelinaestablished
1471156 TXAngelinaSam Rayburn Reservoir2013 12020005 Lower Angelinaestablished
1471135 TXAngelinaSam Rayburn Reservoir2014 12020005 Lower Angelinaestablished
1470819 TXArcherCooper Reservoir2007 11130209 Little Wichitaestablished
1470886 TXArcherCooper Reservoir2015 11130209 Little Wichitaestablished
1421126 TXBastrop[Locality description not provided]2011 12090301 Lower Colorado-Cumminsunknown
1470834 TXBastropBastrop Reservoir2011 12090301 Lower Colorado-Cumminsestablished
1470944 TXBastropBastrop Reservoir2012 12090301 Lower Colorado-Cumminsestablished

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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/14/2024].

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