Egeria densa
Egeria densa
(Brazilian waterweed)

57 results for Egeria densa (Brazilian waterweed)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
234506 OR Willamette reservoirs2002 17090000 Willametteestablished
236345 OR Willamette Valley2005 17090012 Lower Willametteestablished
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
243646 ORClackamasClackamas County2007 17000000 Pacific Northwest Regionestablished
852253 ORClackamasRedland2008 17090011 Clackamasestablished
243634 ORClatsopCamp Rilea, SW of Warrenton, W fork of Neacoxie Creek1997 17100201 Necanicumcollected
243648 ORClatsopClatsop County2007 17000000 Pacific Northwestestablished
236346 ORClatsopClatsop, Tillamook, Lincoln and Lane counties.2005 Unknown or N/Aestablished
852263 ORClatsopWarrenton1997 17080006 Lower Columbiaestablished
243651 ORColumbiaColumbia County2007 17100000 Oregon-Washington Coastalestablished
243650 ORColumbiaColumbia County2007 17080000 Lower Columbiaestablished
236344 ORColumbiaColumbia River, lower2005 17080003 Lower Columbia-Clatskanieestablished
236347 ORCoosCoos County2005 Unknown or N/Aestablished
852264 ORCoosLakeside1979 17100304 Coosestablished
243635 ORCoosLakeside - 1 mile west of, in a small stream W of Highway 101, where the railroad crosses the stream.1979 17100304 Cooscollected
260743 ORCurryCurry County2005 Unknown or N/Aestablished
852252 ORCurryLanglois1997 17100306 Sixesestablished
260742 ORDouglasDouglas County2005 Unknown or N/Aestablished
235804 ORDouglasElbow Lake, north of Reesport, west of Hwy. 1012004 17100207 Siltcoosestablished
852256 ORDouglasTahkenitch Creek1947 17100207 Siltcoosestablished
852257 ORDouglasTahkenitch Creek1947 17100207 Siltcoosestablished
243636 ORDouglasTahkenitch Lake, north of Reedsport, east of hwy 1011947 17100207 Siltcooscollected
235866 ORDouglasTahkenitch Lake, north of Reedsport, east of hwy 1012004 17100207 Siltcoosestablished

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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/24/2021].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.