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Aquatic Weed Identification
The top eight problem aquatic weeds in King County

As part of the Lake Stewardship Program, identification cards were created for the top eight peskiest aquatic weed species. To learn more about these eight plants and how to spot them, click on the links below.

Emergent weeds on the shoreline:

Reed canary grass

Purple loosestrife


Floating weeds on the lake surface:

Water hyacinth


Submergent weeds under the lake surface:

Eurasian watermilfoil

Parrotfeather milfoil

Fanwort

Hydrilla

Brazilian elodea

For more information about other noxious weeds in King County, please check out the King County Noxious Weed Control Program web site.


For questions about the Lake Stewardship Program or the contents of this page, please contact Sally Abella, 206-296-8382.

For questions about the
Water and Land Resources Web Site,
please contact
Fred Bentler, webmaster.

Updated: August 18, 2004

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