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

14 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 
1891621 VAArlington[No locality description provided]2025 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 
1877929 VAChesapeake CityKemp Woods stormwater retention pond2025 03010205 Albemarleestablished
1892857 VAHampton[No locality description provided]2025 02080208 Hampton Roads 
1889657 VAHampton[No locality description provided]2025 02080108 Lynnhaven-Poquoson 
1889784 VANewport News[No locality description provided]2025 02080206 Lower James 
1889313 VAStafford[No locality description provided]2025 02070011 Lower Potomac 
1890291 VASuffolk[No locality description provided]2025 03010205 Albemarle 
1890755 VAVirginia Beach[No locality description provided]2025 03010205 Albemarle 
1886695 VAWashingtonAlong the North Fork of the Holston River at Riverside Campground, at their tent sites 7-102025 06010101 North Fork Holstonestablished

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/15/2026].

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