Texas Blueweed Helianthus ciliaris This Class A noxious weed has a very limited distribution in Washington State. The only known infestation is in Yakima County. Eradication is required throughout Washington State including King County. If you find Texas blueweed in King County, Washington please notify us through our online infestation form. To search for records of this weed in King County, use our interactive noxious weed map and search for Texas blueweed. |