Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic
Collection Info
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Impacts

7 results for Alternanthera philoxeroides (alligatorweed)
Download Data
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1872448 TXChambers[No locality description provided]2020 12030203 Lower Trinity 
260804 TXLibertyChampion Lake, adjacent to W side of Trinity River, Trinity River National Wildlife Refuge, coordinates for boat ramp where most active2007 12030203 Lower Trinityestablished
233746 TXLibertyCity of Dayton Reservoir1995 12030203 Lower Trinityestablished
230734 TXLibertyTrinity River1995 12030203 Lower Trinityestablished
1187333 TXLibertyTrinity River National Wildlife Refuge2004 12030203 Lower Trinityestablished
1187342 TXLibertyTrinity River National Wildlife Refuge2009 12030203 Lower Trinityestablished
1398394 TXLibertyTrinity River. Swamp2011 12030203 Lower Trinityunknown

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.

Disclaimer:

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 [12/10/2025].

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