"Noxious Weeds are non-native plants introduced into Washington State. They spread quickly and can be difficult to control. They invade our croplands, rangeland, forests, prairies, rivers, lakes, wetlands, and estuaries, causing both ecological and economical damage that affects us all. Our mission is to serve as responsible stewards of Washington by aiding in the protection and preservation of the land and resources from the damaging effects of noxious weeds. Site contains the current Noxious Weed List."
The INVADERS Database is a comprehensive database of exotic plant names, distribution records, and regulatory information for the Northwestern United states (Montana, Idaho, Oregon, Washington, Wyoming). It was created for the early detectiona nd tracking of invasive alien plants and weedy natives.