Aquatic Plant and Algae Identification

Aquatic Plant Identification Manual for Washington's Freshwater Plants
Descriptions, photographs, and line drawings of 100 aquatic plants.
 
Discover What Freshwater Plants are Found in Washington Lakes
Search Ecology's plants database to see which plants are growing in each water body (not all water bodies in Washington have been surveyed).
 
Discover What Algae is Growing in Washington Lakes
Search Ecology's algae database to see if blue-green algae are growing in each water body and if they are toxic (not all algae blooms have been tested).
 
Tips for Identifying Aquatic Plants
Information on how to press plants, prepare for mailing for identification, how to distinguish look-alike aquatic plants.
Report invasive species sightings Washington Invasive Species Council: Stop the Invasion - Report Sightings