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

122 results for Alternanthera philoxeroides (alligatorweed)
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Page:12345
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1728284 ALBaldwin[No locality description provided]2023 03160205 Mobile Bay 
1736765 ARLeeBear Creek Lake Spillway just east of the boat launch on Bear Creek Lake2023 08020203 Lower St. Francisestablished
1736764 ARPhillipsNorth of the fishing dock in the recreation and swim area of Storm Creek Lake.2023 08020100 Lower Mississippi-Helenaestablished
1750541 CAButte[No locality description provided]2023 18020159 Honcut Headwaters-Lower Feather 
1750816 CAButte[No locality description provided]2023 18020159 Honcut Headwaters-Lower Feather 
1750634 CAContra Costa[No locality description provided]2023 18040003 San Joaquin Delta 
1750706 CAContra Costa[No locality description provided]2023 18050001 Suisun Bay 
1750707 CAContra Costa[No locality description provided]2023 18040003 San Joaquin Delta 
1751939 CAContra Costa[No locality description provided]2023 18040003 San Joaquin Delta 
1887430 CAContra Costa[No locality description provided]2023 18040003 San Joaquin Delta 
1750852 CAContra Costa[No locality description provided]2023 18040003 San Joaquin Delta 
1750279 CAMerced[No locality description provided]2023 18040001 Middle San Joaquin-Lower Chowchilla 
1750131 CARiverside[No locality description provided; coordinates obscured by collector]2023 18070301 Aliso-San Onofre 
1750121 CASan Diego[No locality description provided]2023 18070302 Santa Margarita 
1750286 CASan Diego[No locality description provided]2023 18070304 San Diego 
1750180 CASan Joaquin[No locality description provided]2023 18040003 San Joaquin Delta 
1750181 CASan Joaquin[No locality description provided]2023 18040003 San Joaquin Delta 
1750587 CAShasta[No locality description provided]2023 18020154 Clear Creek-Sacramento River 
1750482 CASolano[No locality description provided]2023 18020163 Lower Sacramento 
1750084 CASolano[No locality description provided]2023 18020163 Lower Sacramento 
1750211 CATulare[No locality description provided]2023 18030012 Tulare Lake Bed 
1750739 CAYolo[No locality description provided]2023 18020163 Lower Sacramento 
1750740 CAYolo[No locality description provided]2023 18020163 Lower Sacramento 
1750135 DENew Castle[No locality description provided]2023 02040205 Brandywine-Christina 
1728311 FLBroward[No locality description provided]2023 03090206 Florida Southeast Coast 
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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 [1/13/2026].

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