Lawnweed (also known as carpet burweed) is a Class B non-designate noxious weed in King County, Washington. It is recommended for control where possible but not required.

This low-growing plant is difficult to identify because of its small size. It is more often located by the sharp burs that form after flowering. Lawnweed is mostly a problem in high traffic areas of turf where disturbance, compaction and short-mowed grass allows it to spread. Lawnweed can be controlled with good turf management practices such as fertilizing, regular watering, aerating and overseeding as needed.

For more information about lawnweed, please read the written findings by the Washington State Noxious Weed Control Board.

Lawnweed/Carpet Burweed (Soliva sessilis) Photos - click for larger image

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.