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Purple Starthistle Centaurea calcitrapa
This Class A noxious weed has a limited distribution in Washington State; control and eventual eradication is required in King County. Purple starthistle invades pastures, meadows, and fields, displacing native and/or beneficial forage species.
For more information about purple starthistle, please follow this link to the WA State Noxious Weed Control Board.
Read an informational Centaureabrochure (316 KB Acrobat file, 46 seconds on 56K modem).
If you find purple starthistle in King County, please notify us through our online infestation form.
To find out where we have records of this weed in King County, use our interactive noxious weed map and search for purple starthistle.
Purple starthistle photos - click thumbnail 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.
This Class A noxious weed has a limited distribution in Washington State; control and eventual eradication is required in King County. Purple starthistle invades pastures, meadows, and fields, displacing native and/or beneficial forage species.
for purple starthistle.
