Alternanthera philoxeroides
Alternanthera philoxeroides

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

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1398857 MSAttalaW side of Natchez Trace2006 03180001 Upper Pearlunknown
270625 MSAttalaWest side of the Natchez Trace Parkway Kosciusko, MS2006 03180001 Upper Pearlestablished
1398631 MSBolivarE side of Hwy 61. Only a small representative sampling of the total population size2011 08030207 Big Sunflowerunknown
1397807 MSClayTombigbee River2014 03160101 Upper Tombigbeeunknown
1399262 MSForrest[no locality given]2007 03170005 Lower Leafunknown
231129 MSForrestForest County1982 03170000 Pascagoulaestablished
1457417 MSForrestHattiesburg, creek bed1950 03170005 Lower Leafestablished
1399444 MSForrestoxbow, E side of Leaf River, Bio Control found on. Petal,MS 39462006 03170005 Lower Leafunknown
273812 MSForrestSims Lake2006 03170005 Lower Leafestablished
1398645 MSGeorge[no locality given]2007 03170006 Pascagoulaunknown
1398651 MSGeorge[no locality given]2007 03170006 Pascagoulaunknown
1398684 MSGeorgeAt road crossing2007 03170006 Pascagoulaunknown
1398489 MSGeorgemore in area2007 03170006 Pascagoulaunknown
1398919 MSGeorgeOne of three waypoints2006 03170006 Pascagoulaunknown
1398794 MSGeorgePascagoula River2006 03170006 Pascagoulaunknown
270687 MSGeorgePascagoula River2006 03170006 Pascagoulaestablished
1398801 MSGeorgePascagoula WM2007 03170006 Pascagoulaunknown
1398692 MSGeorgeShoreline Pascagoula2006 03170006 Pascagoulaunknown
1399134 MSGreeneHwy 98/leaf river flood plain2006 03170005 Lower Leafunknown
1398902 MSGreenePascagoula Shoreline2006 03170005 Lower Leafunknown
1399084 MSGreeneUnder Hwy 98 bridge2007 03170005 Lower Leafunknown
270694 MSGreeneUnder HWY 98 Bridge in McLain2007 03170005 Lower Leafestablished
1399083 MSHancockAlong N side of Rd in ditch2010 03180004 Lower Pearlunknown
1321149 MSHancockBogue Homa [Pearl River tributary], south of I-10 and north of Pearlington, along the Possum Walk Trail2015 03180004 Lower Pearlestablished
1396318 MSHancockPass Marianne-Mississippi Sound2011 03170009 Mississippi Coastalestablished

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.


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. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/6/2023].

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.