Texas Blueweed Helianthus ciliaris This Class A noxious weed has a very limited distribution in Washington state. The only known field site is in Yakima County. Eradication is required in King County. If you find Texas blueweed 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 Texas blueweed.
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