Sorted by weed common name

Bindweed (Convolvulus sepium)
Bindweed/Morning Glory Weed Alert (199 Kb)

Bittersweet nightshade (Solanum dulcamara)
Bittersweet Nightshade Best Management Practices (256 Kb)
Bittersweet Nightshade Weed Alert (155 Kb)

Blackberry (Rubus spp.)
Blackberry Best Management Practices (228 Kb)
Blackberry Weed Alert (191 Kb)

Broom (Cytisus, Spartium)
Scotch Broom Best Management Practices (383 Kb)
Scotch Broom Weed Alert (233 Kb)
Rush Broom Best Management Practices 
Rush (Spanish) Broom Weed Alert (160 Kb)

Buffalobur (Solanum rostratum)
Buffalobur Weed Alert (601 Kb)

Buttercup (Ranunculus spp.)
Creeping Buttercup Weed Alert (183 Kb)

Butterfly bush (Buddleia davidii)
Butterfly Bush Weed Alert (233 Kb)
Butterfly Bush WSU Extension Bulletin (788 Kb)

Common holly (Ilex aquifolium)
Common Holly Best Management Practices (462 Kb)
Common Holly Weed Alert (220 Kb)

Common reed/Phragmites (Phragmites australis)
Common Reed (Phragmites) Best Management Practices (310 Kb)

Egeria (Egeria densa)
Egeria Best Management Practices (283 Kb)

English ivy (Hedera helix)
English Ivy Best Management Practices (984 Kb)
English Ivy Weed Alert (210 Kb)
English Ivy Alternatives Sheet (454 Kb)
English Ivy Bulletin (743 Kb)

Fragrant water lily (Nymphaea odorata)
Fragrant Water Lily Best Management Practices (198 Kb)
Fragrant Water Lily Weed Alert (226 Kb)

Garlic mustard (Alliaria petiolata)
Galic Mustard Best Management Practices (294 Kb)
Garlic Mustard Weed Alert (1.69 Mb)

Giant hogweed (Heracleum mantegazzianum)
Giant Hogweed Best Management Practices (285 Kb)
Giant Hogweed Weed Alert (253 Kb)
Giant hogweed folleto informativo (informacion sobre identificacion y control) (960 Kb)

Gorse (Ulex europaeus)
Gorse Best Management Practices (374 Kb)
Gorse Weed Alert (205 Kb)

Groundsel (Senecio vulgaris)
Common Groundsel (273 Kb)

Hairy willowherb (Epilobium hirsutum)
Hairy Willowherb Weed Alert (219 Kb)

Hawkweed (Hieracium spp.)
Orange and Yellow Hawkweed King County Noxious Weed Alert (1.77 MB)
Hawkweed Best Management Practices (263 Kb)
Common Hawkweed Weed Alert (1.05 Mb)
European Hawkweed (Hieracium sabaudum) Weed Alert (225 Kb)

Herb Robert (Geranium robertianum)
Herb Robert Best Management Practices (320 Kb)
Herb Robert Weed Alert (204 Kb)

Houndstongue (Cynoglossum officinale)
Houndstongue Weed Alert (943 Kb)

Knapweed (Centaurea spp.)
Bighead Knapweed Weed Alert (160 Kb)
Diffuse Knapweed Best Management Practices (204 Kb)
Knapweed ID Brochure (317 Kb)
Meadow Knapweed Best Management Practices (259 Kb)
Meadow Knapweed Weed Alert (166 Kb)
Spotted Knapweed Best Management Practices (187 Kb)
Spotted Knapweed Weed Alert (131 Kb)

Knotweed (Polygonum spp.)
Invasive Knotweed Brochure (2 Mb)
Himalayan Knotweed Fact Sheet (156 Kb)
Knotweed Best Management Practices (649 Kb)
Knotweed Weed Alert (215 Kb)
Knotweed Biology and Control Slide Show (Note: slide show, 3.12 Mb)
Knotweed (poligonaceas) folleto informativo de WSDA (214 Kb)

Loosestrife (Lysimachia, Lythrum)
Garden Loosestrife Best Management Practices (355 Kb)
Garden Loosestrife Weed Alert (232 Kb)
Purple Loosestrife Bet Management Practices (304 Kb)
Purple Loosestrife Weed Alert (257 Kb)
Purple loosestrife folleto informativo (informacion sobre identificacion y control) (965 Kb)

Milfoil (Myriophyllum sp.)
Milfoil Best Management Practices (407 Kb)

Old man's beard (Clematis vitalba)
Old Man's Beard Best Management Practices (334Kb)
Old Man's Beard Weed Alert (170 Kb)

Parrotfeather (Myriophyllum aquaticum)
Parrotfeather Best Management Practices (334Kb)

Perennial pepperweed (Lepidium latifolium)
Perennial Pepperweed Weed Alert (1.15 Mb)

Poison hemlock (Conium maculatum)
Poison Hemlock Weed Alert (2.3 Mb)
Cicuta (poison hemlock) folleto informativo (información sobre identificación y control) (1.62 Mb)

Policeman's helmet (Impatiens glandulifera)
Policeman's Helmet Best Management Practices (163 Kb)
Policeman's Helmet Weed Alert (2.8 Mb)

Reed canarygrass (Phalaris arundinacea)
Reed Canarygrass Weed Alert (300 Kb)
Reed Canarygrass Best Management Practices (407 Kb)

Reed sweetgrass(Glyceria maxima)
Reed Sweetgrass Weed Alert (1.57 Mb)

Shiny geranium (Geranium lucidum)
Shiny Geranium Weed Alert (664 Kb)

Sulfur cinquefoil (Potentilla recta)
Sulfur Cinquefoil Best Management Practices (224 Kb)
Sulfur Cinquefoil Weed Alert (203 Kb)

Tansy (Tanacetum vulgare)
Common Tansy Best Management Practices (199 Kb)

Tansy ragwort (Senecio jacobaea)
Tansy Ragwort Best Management Practices (186 Kb)
Tansy Ragwort Weed Alert (1.32 Mb)
Tansy ragwort folleto informativo (informacion sobre identificacion y control) (638 Kb)

Thistle (Cirsium, Silybum)
Bull Thistle Best Management Practices (234 Kb)
Bull Thistle Weed Alert (178 Kb)
Creeping Thistle Weed Alert (147 Kb)
Milk Thistle Best Management Practices (386 Kb)
Milk Thistle Weed Alert (190 Kb)

Toadflax (Linaria dalmatica ssp. dalmatica)
Dalmatian Toadflax Best Management Practices (269 Kb)
Dalmatian Toadflax Weed Alert (0.99 Mb)

Velvetleaf (Abutilon theophrasti)
Velvetleaf Weed Alert (198 Kb)

Wild chervil (Anthriscus sylvestris)
Wild Chervil Best Management Practices (1.09 Mb)

Yellow archangel (Lamiastrum galeobdolon)
Yellow Archangel Best Management Practices (405 Kb)
Yellow Archangel Weed Alert (204 Kb)

Yellow flag iris (Iris pseudacorus)
Yellow Flag Iris Best Management Practices (382 Kb)
Yellow Flag Iris Weed Alert (664 Kb)

Related information

• DNRP publications
• Agriculture in King County, Washington
• Northwest yard and garden
• Animals, plants and habitat

Related agencies

• Dept. of Natural Resources and Parks
• Water and Land Resources Division

Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333).