Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic
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Impacts

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

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1475918 FLAlachuaWatermellon Pond1994 03110101 Waccasassaestablished
1481153 FLAlachuaWatermellon Pond1995 03110101 Waccasassaestablished
1476303 FLAlachuaWatermellon Pond1996 03110101 Waccasassaestablished
1482408 FLAlachuaWatermellon Pond1997 03110101 Waccasassaestablished
1483033 FLAlachuaWatermellon Pond1998 03110101 Waccasassaestablished
1477860 FLAlachuaWatermellon Pond1999 03110101 Waccasassaestablished
1483407 FLAlachuaWatermellon Pond2005 03110101 Waccasassaestablished
1477309 FLAlachuaWatermellon Pond2006 03110101 Waccasassaestablished
1480901 FLAlachuaWatermellon Pond2007 03110101 Waccasassaestablished
1480880 FLAlachuaWatermellon Pond2014 03110101 Waccasassaestablished
1478862 FLAlachuaWatermellon Pond2016 03110101 Waccasassaestablished
1478456 FLAlachuaWatermellon Pond2017 03110101 Waccasassaestablished
1336125 FLLevyDevil's Hammock Wildlife Management Area; east of the SE Entrance road; ca 6.5-6.85 miles W of junction with Alternate U.S. 27 (in Bronson) on FL 24; wet roadside ditch just north of road, along edge of flatwoods remnants2003 03110101 Waccasassaunknown
1652172 FLLevyUS-19, Inglis, FL 34449, USA2019 03110101 Waccasassaestablished
1478857 FLLevyWaccasassa River2016 03110101 Waccasassaestablished
1478451 FLLevyWaccasassa River2017 03110101 Waccasassaestablished
1475150 FLLevyWekiva River1990 03110101 Waccasassaestablished
225045 FLLevyWekiva River1990 03110101 Waccasassaestablished
226389 FLLevyWekiva River1992 03110101 Waccasassaestablished
1482715 FLLevyWekiva River1992 03110101 Waccasassaestablished
1481171 FLLevyWekiva River2013 03110101 Waccasassaestablished
1481585 FLLevyWekiva River2014 03110101 Waccasassaestablished
1483131 FLLevyWekiva River2015 03110101 Waccasassaestablished
1478844 FLLevyWekiva River2016 03110101 Waccasassaestablished
1478462 FLLevyWekiva River2017 03110101 Waccasassaestablished

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 [11/18/2025].

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.