'Noxious weed' is the traditional, legal term for any invasive, non-native plant that threatens agricultural crops, local ecosystems or fish and wildlife habitat.

The term ‘noxious weeds’ includes non-native grasses, flowering plants, shrubs and trees. It also includes aquatic plants that invade wetlands, rivers, lakes and shorelines.

About half of all invasive, noxious weeds are escapees from gardens; the rest are plants accidentally introduced to Washington through human travel and trade.

We all share responsibility for protecting Washington from noxious weeds.
This site can help you learn how to do your part.

 

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