Alternanthera philoxeroides
Alternanthera philoxeroides

219 results for Alternanthera philoxeroides (alligatorweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
213458 TX southeast Texas1975 Texas-Gulf Regionestablished
1421194 TXAngelina[Locality description not provided]2011 12020005 Lower Angelinaestablished
230739 TXAngelinaKurth Lake1996 12020005 Lower Angelinaestablished
1676422 TXAngelinaTexas, US2020 12020005 Lower Angelina 
1470315 TXArcherCooper Reservoir2015 11130209 Little Wichitaestablished
1704557 TXBexar[No locality description provided]2022 12100301 Upper San Antonio 
1676602 TXBexarSan Antonio River, San Antonio, TX, USA2019 12100301 Upper San Antonio 
1421454 TXBowieWright Patman Lake2012 11140302 Lower Sulphereradicated
1470167 TXBowieWright Patman Lake2012 11140302 Lower Sulphereradicated
1421073 TXBrazoria[Locality description not provided]2009 12090401 San Bernardestablished
1421277 TXBrazoria[Locality description not provided]2012 12040205 Austin-Oysterestablished
1421343 TXBrazoria[Locality description not provided]2014 12040205 Austin-Oysterestablished
1421360 TXBrazoria[Locality description not provided]2014 12090402 East Matagorda Bayestablished
1421384 TXBrazoria[Locality description not provided]2014 12090401 San Bernardestablished
1704565 TXBrazoria[No locality description provided]2022 12040204 West Galveston Bay 
1470169 TXCampLake Bob Sandlin2010 11140305 Lake O'the Pinesestablished
1470109 TXCampLake Bob Sandlin2011 11140305 Lake O'the Pinesestablished
1470228 TXCampLake Bob Sandlin2012 11140305 Lake O'the Pinesestablished
1470325 TXCampLake Bob Sandlin2013 11140305 Lake O'the Pinesestablished
1523934 TXCampLake Bob Sandlin2017 11140305 Lake O'the Pinesestablished
1468807 TXChambersAlong the Willows Trail at Anhuac WR2018 12040202 East Galveston Bayestablished
1467934 TXChambersAnahuac National Wildlife Refuge2018 12040202 East Galveston Bayestablished
1457698 TXChambersAnahuac NWR2017 12040202 East Galveston Bayestablished
1396270 TXChambersCedar Bayou-Frontal Galveston Bay2011 12040203 North Galveston Bayestablished
1396296 TXChambersCedar Bayou-Frontal Galveston Bay2011 12040203 North Galveston Bayestablished

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 [2/8/2023].

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