Specimen Information

Egeria densa
Egeria densa
(Brazilian waterweed)

Specimen ID1257382
Common NameBrazilian waterweed
LocalityLacamas Lake
Mapping AccuracyAccurate
HUC8 NameLower Columbia-Sandy
HUC8 Number17080001
HUC10 NameWashougal River
HUC10 Number1708000106
HUC12 NameLacamas Creek
HUC12 Number170800010605
Collection Day16
Collection Month9
Collection Year2004
Year AccuracyActual
Potential Pathwayunknown
Reference 1
Ref. Number:28080
Author:Environmental Assessment Program.
Title:Washington State Lakes Environmental Data Version 1.0
Publisher:Washington State Department of Ecology
Commentsdense in much of the lake; Cloudy, light breeze, started raining. Water level about 3 ft low. Egeria seemed very dense, perhaps due to the low water. South of the launch it was nearly a monoculture to the point where the lake narrows. The north part of the lake was a little more diverse, with P. amplifolius being the next most common species visible from the surface.
Record TypeLiterature


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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/26/2024].

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.