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Mason County
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Natural Resources
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Noxious & Invasive Species
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Weeds
Weeds
Please see information on common Mason County weeds below.
Giant Hogweed
Hawkweed Orange & Yellow
Herb Robert
Himalayan Blackberry
Knotweeds
Purple Loosestrife
Scotch Broom
Spotted Knapweed
Tansy Ragwort
Yellow Archangel
Statewide Resources
Weeds Websites
Integrated Weed Management
Weeds Publications
Paterson's Curse (Echium plantagineum) in the Pacific Northwest
1000 Weeds of North America: An Identification Guide
African Rue
Annual and Perennial Sowthistles
Aquatic and Riparian Weeds of the West
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Weeds Online Courses
Biocontrol of Rush Skeletonweed and Poison Hemlock
Diffuse and Spotted Knapweed Biocontrol
Integrated Noxious Weed Basics