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

22 results for Alternanthera philoxeroides (alligatorweed)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1257129 ARArkansasBayou Meto drainage1968 08020402 Bayou Metoestablished
1463607 LAAvoyellesLa Vieille Riviere, at Marksville State Historic Indian Mounds1968 08040301 Lower Redestablished
1725618 MSPikeBogue Chitto River at bridge on US Hwy 98, 11.7 mi SE of McComb1968 03180005 Bogue Chitto 
233965 NCBeaufortBeaufort County1968 03020104 Pamlicoestablished
233963 NCColumbusColumbus County1968 03040200 Lower Pee Deeestablished
233964 NCCumberlandCumberland County1968 03030000 Cape Fearestablished
233967 NCHertfordHertford County1968 03010200 Albemarle-Chowanestablished
1725705 NCMartinalong US 64 east of Williamston at jct. of Co Rt 15041968 03010107 Lower Roanoke 
233966 NCTyrrellTyrrell County1968 03010205 Albemarleestablished
1247729 PRMayaguezMayaguez1968 21010003 Culebrinas-Guanajiboestablished
1247728 PRTrujillo AltoLago Loiza1968 21010005 Eastern Puerto Ricounknown
233961 SCAikenAiken County1968 Unknown or N/Aestablished
233952 SCBeaufortBeaufort County1968 03050208 Broad-St. Helenaestablished
233958 SCCalhounCalhoun County1968 03050000 Edisto-Santeeestablished
233954 SCColletonColleton County1968 03050200 Edisto-South Carolina Coastalestablished
233962 SCDarlingtonDarlington County1968 03040200 Lower Pee Deeestablished
233955 SCDorchesterDorchester County1968 03050200 Edisto-South Carolina Coastalestablished
233953 SCJasperJasper County1968 Unknown or N/Aestablished
233960 SCLexingtonLexington County1968 03050000 Edisto-Santeeestablished
233959 SCRichlandRichland County1968 03050100 Santeeestablished
233957 SCSumterSumter County1968 03040205 Blackestablished
233956 SCWilliamsburgWilliamsburg County1968 03040200 Lower Pee Deeestablished

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 [3/10/2026].

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.