Egeria densa
Egeria densa
(Brazilian waterweed)
Plants
Exotic
Collection Info
Point Map
Species Profile
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Impacts

27 results for Egeria densa (Brazilian waterweed)
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Page:12
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1649787 ARHot SpringOuachita River. Submerged in swamp area approximately 1 mile below Remmel Dam2009 08040102 Upper Ouachitaestablished
1438616 CASacramentoArtificial pond in North Laguna Creek Park.2009 18020163 Lower Sacramentoestablished
274484 CTNew HavenFence Rock Lake, exact location not given2009 01100004 Quinnipiacestablished
1501044 FLCitrusChassahowitzka River2009 03100207 Crystal-Pithlachascoteeunknown
1501128 FLPalm BeachLake Clarke2009 03090206 Florida Southeast Coastunknown
1501125 FLPalm BeachLake Osborne2009 03090206 Florida Southeast Coastunknown
1501141 FLWakullaWakulla River2009 03120001 Apalachee Bay-St. Marksunknown
1547628 HIKauaiBlue Hole drainage, end of Kuamoo road, where cement crossing diverts stream into irrigation ditch2009 20070000 Kauaiestablished
261482 ILLakeLibertyville, retention pond2009 07120004 Des Plainesestablished
1687224 MAMiddlesex60 Scotch Pine Road, Gerald Kroft's property2009 01090001 Charlesunknown
1760021 NYSuffolkPine Lake2009 02030202 Southern Long Island 
888141 NYWestchesterPine Lake2009 02030101 Lower Hudsonestablished
1889524 ORLane[No locality description provided]2009 17100206 Siuslaw 
269990 RIKentArnolds Pond, Near the city of Foster.2009 01100001 Quinebaug Riverestablished
269991 RIWashingtonHundred Acre Pond, Near the town of Kingston2009 01100007 Pawcatuck Riverestablished
1257364 WAClarkLacamas Lake2009 17080001 Lower Columbia-Sandyunknown
1526376 WAClarkLacamas Lake2009 17080001 Lower Columbia-Sandyestablished
1527610 WAKingSammamish River2009 17110012 Lake Washingtonestablished
1257285 WAKingSammamish River2009 17110012 Lake Washingtonunknown
1525202 WAKingWashington Lake2009 17110012 Lake Washingtonestablished
1257359 WAKingWashington Lake2009 17110012 Lake Washingtonunknown
1528840 WALewisChehalis River2009 17100103 Upper Chehalisestablished
1257337 WALewisChehalis River2009 17100103 Upper Chehalisunknown
1257377 WALewisPlummer Lake2009 17100103 Upper Chehalisunknown
1528841 WALewisPlummer Lake2009 17100103 Upper Chehalisestablished
Page:12

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 [3/6/2026].

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.