Egeria densa
Egeria densa
(Brazilian waterweed)
Plants
Exotic
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161 results for Egeria densa (Brazilian waterweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
230779 CA Sierra Nevada, both sides1993 18090103 Owens Lakeestablished
1678086 CAAlameda[No locality description provided]2018 18050002 San Pablo Bay 
1673683 CAAlameda[No locality description provided]2020 18050004 San Francisco Bay 
1737939 CAAlameda[No locality description provided]2021 18050004 San Francisco Bay 
1699310 CAAlameda[No locality description provided]2021 18050004 San Francisco Bay 
1738025 CAAlameda[No locality description provided]2022 18050004 San Francisco Bay 
1738297 CAAlameda[No locality description provided]2022 18050004 San Francisco Bay 
259333 CAAlamedaCoyote Hills Regional Park1979 18050004 San Francisco Baycollected
229282 CAAlamedaSan Francisco Bay Area1993 18050004 San Francisco Bayestablished
1437291 CAAlamedaSan Francisco Bay Region, Coyote Hills Regional Park, next to picnic area1979 18050004 San Francisco Bayestablished
1671083 CAAmador[No locality description provided]2016 18040012 Upper Mokelumne 
1438497 CAButteAbout 2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley.2015 18020159 Honcut Headwaters-Lower Featherestablished
259305 CAButteChico Creek1935 18020157 Big Chico Creek-Sacramento Rivercollected
1437510 CAButteIn water. Near w boundary of Cuager property, 2723 Oro-Quincy Hwy, Oroville.1965 18020159 Honcut Headwaters-Lower Featherestablished
1438538 CAButteLocality: Chico Creek.1935 18020157 Big Chico Creek-Sacramento Riverestablished
259306 CAButteOro-Quincy Hwy, Oroville1965 18020159 Honcut Headwaters-Lower Feathercollected
259307 CAButteOroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave1988 18020159 Honcut Headwaters-Lower Feathercollected
1436792 CAButteSmall pond in the Oroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave.1988 18020159 Honcut Headwaters-Lower Featherestablished
1437197 CAButteWilson Landing Slough at the w end of Wilson Landing Rd. In a slough of the Sacramento River.1984 18020157 Big Chico Creek-Sacramento Riverestablished
259308 CAButteWilson Landing Slough, Sacramento River1984 18020157 Big Chico Creek-Sacramento Rivercollected
1737173 CACalaverasAngels Creek Cove2024 18040010 Upper Stanislaus 
1737172 CACalaverasCamp 9 and Rose Creek2024 18040010 Upper Stanislaus 
1437407 CACalaverasHot Creek at weir1970 18040012 Upper Mokelumneestablished
1438742 CAContra Costa[No locality description provided]2012 18040003 San Joaquin Deltaestablished
1438508 CAContra Costa[No locality description provided]2012 18040003 San Joaquin Deltaestablished
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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.

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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 [1/30/2025].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.