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Noxious Weeds By Certification Level

SILVER Level Weeds

^{Photo: Tualatin SWCD}

Blackberries (Himalayan & Evergreen)

^{Photo: Creative Commons}

Knotweeds

^{Photo: Tualatin SWCD}

Garlic Mustard

^{Photo: Tualatin SWCD}

Pokeweed

^{Photo: Tualatin SWCD}

Yellow Archangel

^{Photo: Nancy Loewenstein, Auburn University, Bugwood.org}
Yellow Flag Iris

^{Photo: Tualatin SWCD}

Spurge Laurel

^{Photo: Tualatin SWCD}

Purple Loosestrife

^{Photo: Tualatin SWCD}

Policeman’s Helmet

^{Photo: Tualatin SWCD}

Traveler’s Joy

^{Photo: Tualatin SWCD}

Knapweeds
(Diffuse, Meadow, & Spotted)

^{Photo: Tualatin SWCD}

Giant Hogweed

^{Photo: Creative Commons}

Ivy (all Hedera species)

^{Photo: Creative Commons}

Hawkweeds

^{Photo: Martin LaBar, Flickr}

Scotch Broom

GOLD Level Weeds

^{Photo: Forest and Kim Starr, Starr Environmental,Bugwood.org}

Butterfly Bush

^{Photo: Tualatin SWCD}

English Hawthorn (< 20 ft.)

^{Photo: Tualatin SWCD}

False-brome

^{Photo: Brian Sugerman, The Ohio State University, Bugwood.org}

Morning Glory

^{Photo: Rob Routledge, Sault College, Bugwood.org}

Herb Robert

^{Photo: Tualatin SWCD}

Italian Arum

^{Photo: Tualatin SWCD}

Japanese Butterbur

^{Photo: Tualatin SWCD}

Lesser Celandine

^{John Ruter, University of Georgia, Bugwood.org}

Jubata & Pampas Grass

^{Photo: Bruce Newhouse, Bugwood.org}

Shining Geranium

^{Photo: Tualatin SWCD}

English Holly (< 20 ft.)

^{Photo: Jan Samanek, Phytosanitary Administration, Bugwood.org}

Black Locust (< 20 ft.)

^{Photo: Richard Gardner, Bugwood.org}

Tree of Heaven (< 20 ft.)

^{Photo: Jan Samanek, Phytosanitary Administration, Bugwood.org}

Norway Maple (< 20 ft.)

PLATINUM Level Weeds

^{Photo: Creative Commons}

Creeping Jenny or Moneywort

^{Photo: Tualatin SWCD}

English Laurel

^{Photo: John Ruter, University of Georgia, Bugwood.org}

Portuguese Laurel

^{Photo: Dan Tenaglia, Missouriplants.com, Bugwood.org}

Vincas (Major & Minor)

^{Photo: Rob Routledge, Sault College, Bugwood.org}

Reed Canarygrass

^{Photo: Forest and Kim Starr, Starr Environmental, Bugwood.org}

Fennel

^{Photo: Creative Commons}

Black Locust (> 20 ft.)

^{Photo: Creative Commons}

English Hawthorn (> 20 ft.)

^{Photo: Creative Commons}

English Holly (> 20 ft.)

^{Photo: Creative Commons}

Tree of Heaven (> 20 ft.)

^{Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org}

Norway Maple (> 20 ft.)

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Backyard Habitats

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