Holiday closure Monday May 28: Most county offices will be closed in observance of Memorial Day.

To offer a suggestion or report an error on the King County Noxious Weeds Web site, please contact Sasha Shaw, education specialist.
King County, Washington noxious weed identification and control

Dense-flowered cordgrass
Spartina densiflora

This Class A noxious weed was added to the State Noxious Weed List in 2003.dense-flowered cordgrass It has a very limited distribution in Washington State. It was discovered in the North Bay area of Grays Harbor and it was found at Race Lagoon, near Penn Cove on Whidbey Island.

Unlike other Spartina species, S. densiflora does not have rhizomes. Spread is by seed or by vegetative growth.

Additional information on dense-flowered cordgrass

What to do if you find this plant in King County, Washington

Please notify us if you see dense-flowered cordgrass growing in King County. Our program staff can provide the property owner or appropriate public agency with site-specific advice on how best to remove it. We map all known locations of regulated noxious weeds such as dense-flowered cordgrass in order to help us and others locate new infestations in time to control them.

Dense-flowered cordgrass photos - click thumbnail for larger image

dense-flowered cordgrass - click for larger image dense-flowered cordgrass - click for larger image

Report dense-flowered cordgrass in King County, Washington

Locate dense-flowered cordgrass in King County, Washington

Related information

Related agencies

Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact a staff member at the King County Noxious Weed Control Program, please call 206-296-0290 or by reach them by email.