Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic
Collection Info
Point Map
Species Profile
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Impacts

14 results for Alternanthera philoxeroides (alligatorweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1744672 MDPrince George's[No locality description provided]2020 02070010 Middle Potomac-Anacostia-Occoquan 
1746693 MDPrince George's[No locality description provided]2021 02070010 Middle Potomac-Anacostia-Occoquan 
1746888 MDPrince George's[No locality description provided]2021 02070010 Middle Potomac-Anacostia-Occoquan 
1746889 MDPrince George's[No locality description provided]2021 02070010 Middle Potomac-Anacostia-Occoquan 
1750693 MDPrince George's[No locality description provided]2023 02070010 Middle Potomac-Anacostia-Occoquan 
1750694 MDPrince George's[No locality description provided]2023 02070010 Middle Potomac-Anacostia-Occoquan 
1750702 MDPrince George's[No locality description provided]2023 02070010 Middle Potomac-Anacostia-Occoquan 
1751521 MDPrince George's[No locality description provided]2024 02070010 Middle Potomac-Anacostia-Occoquan 
1751885 MDPrince George's[No locality description provided]2024 02070010 Middle Potomac-Anacostia-Occoquan 
1751935 MDPrince George's[No locality description provided]2024 02070010 Middle Potomac-Anacostia-Occoquan 
1891300 MDPrince George's[No locality description provided]2025 02070010 Middle Potomac-Anacostia-Occoquan 
1725592 MDPrince George'sCollege Park, Duck Pond Park2014 02070010 Middle Potomac-Anacostia-Occoquan 
1320965 MDPrince George'sDuck Pond Park2014 02070010 Middle Potomac-Anacostia-Occoquanestablished
1670541 MDPrince George'sUniversity Hills Park pond2021 02070010 Middle Potomac-Anacostia-Occoquanestablished

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].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

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