Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic
Collection Info
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13 results for Alternanthera philoxeroides (alligatorweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1890753 VAAlexandria[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1745630 VAArlington[No locality description provided]2020 02070010 Middle Potomac-Anacostia-Occoquan 
1751672 VAArlington[No locality description provided]2024 02070010 Middle Potomac-Anacostia-Occoquan 
1751673 VAArlington[No locality description provided]2024 02070010 Middle Potomac-Anacostia-Occoquan 
1889402 VAArlington[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1889637 VAArlington[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1890039 VAArlington[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1890153 VAArlington[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1891621 VAArlington[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1748746 VAFairfax[No locality description provided]2022 02070010 Middle Potomac-Anacostia-Occoquan 
1750334 VAFairfax[No locality description provided]2023 02070010 Middle Potomac-Anacostia-Occoquan 
228725 VAFairfaxFairfax County1997 02070010 Middle Potomac-Anacostia-Occoquanestablished
235546 VAFairfax CityGreen Acres School near G.M.C. [George Mason University] campus1970 02070010 Middle Potomac-Anacostia-Occoquancollected

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.