National Invasive Species Information Center
U.S. Department of Agriculture

Resource Search

Provides access to all site resources, with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source. Search Help

Displaying 1 to 6 of 6

  • Noxious Weed List

    • Thurston County Noxious Weed Control (Washington).

    • The species listed are known to be present or have the potential to infest Thurston County. It is approved and updated annually by the Thurston County Weed Board.

  • Thurston County Noxious Weeds

    • Thurston County  (Washington).

  • WAC Chapter 220-640 - Invasive/Nonnative Species

    • Washington Administrative Code.

  • Washington Priority Species

    • Washington State Recreation and Conservation Office. Washington Invasive Species Council.

  • Washington State Noxious Weed Control Board - What's New

    • Washington State Noxious Weed Control Board.

    • The Washington State noxious weed list is updated every year, and all Washington residents can submit proposals to add or remove species, change the class of a listed noxious weed, or to change the designated area in which control is required for a Class B noxious weed. Anyone, including citizens, tribes, organizations, government agencies, and county noxious weed control boards may participate in the listing process by submitting a proposal or by submitting testimony about proposed changes to the noxious weed list. In fact, Washington's open, inclusive listing process is lauded by other states for its encouragement of public participation. Learn more about the listing process here.

  • Washington State Noxious Weed List

    • Washington State Noxious Weed Control Board.

    • The Washington State Noxious Weed Control Board is tasked with maintaining and updating the official list of noxious weeds that landowners may be required to control.