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Cowlitz County, WA
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Washington State Noxious Weed Control Board


INFORMATIONNoxious Weed DisposalFull Circle brochure
2019 State Weed ListGarden wiseScotch broom brochure
WA Weed LawsGiant hogweed brochureKnotweed brochure
2011-2013 Biennial ReportPoison hemlock brochureItalian Arum brochure
Botanical bullies (Poster)Puncture vine brochureBees and Noxious Weeds
Selected knapweeds of WATansy ragwort brochure

Prohibited PlantGarlic mustard brochure

Noxious Weeds Field Guide


 

POSTCARDSMediterranean sagePurple starthistle
Garlic mustardParrotfeatherYellow starthistle
Giant hogweedPuncturevineItalian/slenderflower thistle
Hoary alyssumPurple loosestrifeButterfly bush
KudzuSpanish broomEggleaf spurge
Meadow claryOriental clematisCommon cuprina
Dryer's woardPerennial pepperweedBuffalobur
Phragmites/common reedFlowering rushGarden loosestrife
Hairy willowherbHoundstongueMilk thistle
Shiny geraniumSpurge flaxWild four o'clock


WRITTEN FINDINGSMilk thistle
Bighead knapweedSlenderflower thistle
Bull thistleShiny geranium
Canada thistleWhite cockle
False bromeWild carrot
Herb RobertYellow archangel

Yellow hawkweed
Poison hemlock postcardsWeedEM out logo
  1. Cowlitz County Noxious Weed Program
  2. Washington State Noxious Weed Control Board
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