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

20 results for Alternanthera philoxeroides (alligatorweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1747722 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1747739 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1748038 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1748040 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1748213 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1748214 CAContra Costa[No locality description provided]2022 18040003 San Joaquin Delta 
1748058 CASacramento[No locality description provided]2022 18020163 Lower Sacramento 
1748059 CASacramento[No locality description provided]2022 18020163 Lower Sacramento 
1748064 CASacramento[No locality description provided]2022 18020163 Lower Sacramento 
1748065 CASacramento[No locality description provided]2022 18020163 Lower Sacramento 
1748066 CASacramento[No locality description provided]2022 18020163 Lower Sacramento 
1748614 CAShasta[No locality description provided]2022 18020154 Clear Creek-Sacramento River 
1747951 CASolano[No locality description provided]2022 18020163 Lower Sacramento 
1747866 CAStanislaus[No locality description provided]2022 18040002 Lower San Joaquin River 
1748472 CAStanislaus[No locality description provided]2022 18040002 Lower San Joaquin River 
1748773 CAStanislaus[No locality description provided]2022 18040002 Lower San Joaquin River 
1748620 CAYolo[No locality description provided]2022 18020161 Upper Coon-Upper Auburn 
1748632 CAYolo[No locality description provided]2022 18020161 Upper Coon-Upper Auburn 
1749063 CAYolo[No locality description provided]2022 18020163 Lower Sacramento 
1705995 CAYuba[No locality description provided]2022 18020159 Honcut Headwaters-Lower Feather 

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 [1/13/2025].

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.