Egeria densa
Egeria densa
(Brazilian waterweed)
Plants
Exotic
Collection Info
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Impacts

368 results for Egeria densa (Brazilian waterweed)
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Click here for listing in all states

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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
234506 OR Willamette reservoirs2002 17090000 Willametteestablished
236345 OR Willamette Valley2005 17090012 Lower Willametteestablished
1762399 ORBenton[No locality description provided]1963 17090003 Upper Willamette 
1763168 ORBenton[No locality description provided]2010 17090003 Upper Willamette 
1823991 ORBenton[No locality description provided]2016 17090003 Upper Willamette 
1823992 ORBenton[No locality description provided]2016 17090003 Upper Willamette 
1823989 ORBenton[No locality description provided]2016 17090003 Upper Willamette 
1823997 ORBenton[No locality description provided]2016 17090003 Upper Willamette 
1828095 ORBenton[No locality description provided]2018 17090003 Upper Willamette 
1828102 ORBenton[No locality description provided]2018 17090003 Upper Willamette 
1698002 ORBenton[No locality description provided]2020 17090003 Upper Willamette 
1698285 ORBenton[No locality description provided]2021 17090003 Upper Willamette 
1699711 ORBenton[No locality description provided]2021 17090003 Upper Willamette 
1845027 ORBenton[No locality description provided]2021 17090003 Upper Willamette 
1730128 ORBenton[No locality description provided]2023 17090003 Upper Willamette 
243633 ORBenton12 miles south of Corvallis off Highway 99 W, on South Benton Grange Rd.1963 17090003 Upper Willamettecollected
243656 ORBentonBenton County2007 17000000 Pacific Northwestestablished
852258 ORBentonMonroe1963 17090003 Upper Willametteestablished
1820767 ORBentonWillamette River2015 17090003 Upper Willamette 
1820768 ORBentonWillamette River2015 17090003 Upper Willamette 
1823993 ORBentonWillamette River2016 17090003 Upper Willamette 
1828106 ORBentonWillamette River2018 17090003 Upper Willamette 
1761167 ORClackamas[No locality description provided]2008 17090011 Clackamas 
1737476 ORClackamas[No locality description provided]2019 17090007 Middle Willamette 
1677141 ORClackamas[No locality description provided]2020 17090007 Middle Willamette 
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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 [11/14/2025].

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.