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What Are Noxious Weeds?

Current Weed List

Weed Fact Sheets

Weed Classifications

Education

Report Noxious Weeds

Noxious Weed Control Board

Knotweed

Poison Hemlock Information

Weed Map - Whatcom County

Poisonous Plants Booklet

Whatcom County Noxious Weed Fact Sheets

The following are fact sheets describing some of the most problematic weeds in our area. Information about management options for specific weeds are in red. (all files are in Acrobat PDF format)

Aquatics

• Arrow Arum
• Brazilian Elodea
• Curly-leaf Pondweed
• Delta Arrowhead
• Eurasian Watermilfoil
• Flowering Rush
• Fragrant Water Lily
• Garden Loosestrife
• Giant Reed (Arundo)
• Hairy Willow-herb
• Japanese Eelgrass
• Mares-Tail
• Parrotfeather
• Phragmites (Common Reed)
• Pondweeds
• Purple Loosestrife Management
• Spartina
• Swollen Bladderwort
• Variable-Leaf Milfoil
• Water Celery
• Water Hyacinth
• Western Water-Hemlock
• Yellow Flag Iris Management
• Yellow Floating Heart

Terrestrials

• Absinthe Wormwood

• Bitter Nightshade Management
• Blackberries Management
• Buffalobur
• Bull Thistle Management
• Burdock
• Buttercup Management
• Butterfly Bush Management
• Canada Thistle Management
• Catsear Management
• Cleavers
• Common Fennel
• Common Tansy Management
• Curly Dock
• Dalmatian Toadflax
• English Ivy Management
• Garlic Mustard
• Giant Hogweed Management
• Groundsel
• Hedge Bindweed Management
• Herb Robert Management
• Himalayan Knotweed
• English Holly Management
• Horsetail Management
• Horseweed
• Jimsonweed
• Knotweeds Management
• Kudzu
• Lesser Celandine
• Meadow Knapweed Management
• Mole Plant
• Myrtle Spurge
• Old Man’s Beard Management
• Orange Hawkweed
• Oriental Clematis
• Oxeye Daisy
• Pampas Grass
• Perennial Pepperweed
• Periwinkle (Vinca)
• Petty Spurge
• Pineapple Weed
• Poison Hemlock Management
• Policeman’s Helmet
• Purslane Management
• Reed Canarygrass Management
• Scotch Broom Management
• Scotch Thistle
• Silverlace Vine
• Smooth Hawkweed
• Spanish Broom
• Spotted Knapweed Management
• Spurge Laurel
• St. John's-Wort
• Sulfur Cinquefoil
• Tansy Ragwort Management
• Teasel
• Tree of Heaven
• Velvet Leaf
• Wild Carrot
• Wild Chervil
• Yellow Archangel Management