Pacific Northwest Invasive Plant Council

Find an Invasive

Please check the county weed board website to determine whether the plant is considered a high priority species or on the monitor list. Feel free to contact the county weed board or the contact person on the website for more information

For Washington state: http://www.nwcb.wa.gov/

Definitions of these classes for Washington state are:

For Oregon state: http://www.oregon.gov/ODA/programs/Weeds/OregonNoxiousWeeds/Pages/Law.aspx

Definitions for Oregon state are:

For British Columbia: www.agf.gov.bc.ca/cropprot/weedguid/weedguid.htm#noxious, www.weedsbc.ca or www.invasiveplantcouncilbc.ca

Contact David Ralph at dralph@gov.bc.ca, or by phone at (250) 371-6062.

For Alaska: www.dnr.state.ak.us/ag/ag_pmc.htm or www.uaf.edu/ces/cnipm/plants.html

Contact Gino Graziano at ginograziano@alskaswcds.org for additional information.

Hedera helix
Hedera helix
Polygonum cuspidatum (Japanese knotweed
Polygonum cuspidatum
Euphorbia esula (leafy spurge)
Euphorbia esula