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

20 results for Alternanthera philoxeroides (alligatorweed)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1747123 CASacramento[No locality description provided]2021 18020163 Lower Sacramento 
1747329 CASacramento[No locality description provided]2021 18020163 Lower Sacramento 
1747330 CASacramento[No locality description provided]2021 18020163 Lower Sacramento 
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 
1892160 CASacramento[No locality description provided]2025 18020163 Lower Sacramento 
1892177 CASacramento[No locality description provided]2025 18020163 Lower Sacramento 
1746661 CASolano[No locality description provided]2020 18020163 Lower Sacramento 
1747951 CASolano[No locality description provided]2022 18020163 Lower Sacramento 
1750084 CASolano[No locality description provided]2023 18020163 Lower Sacramento 
1750482 CASolano[No locality description provided]2023 18020163 Lower Sacramento 
1751736 CASolano[No locality description provided]2024 18020163 Lower Sacramento 
1751296 CASolano[No locality description provided]2024 18020163 Lower Sacramento 
1749063 CAYolo[No locality description provided]2022 18020163 Lower Sacramento 
1750739 CAYolo[No locality description provided]2023 18020163 Lower Sacramento 
1750740 CAYolo[No locality description provided]2023 18020163 Lower Sacramento 
1751529 CAYolo[No locality description provided]2024 18020163 Lower Sacramento 

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.