Invasive Plants Poster

Oregon Noxious Weed Profiles

Portland Plant List (Native and Nuisance)

A detailed description of Portland's planting requirements in environmentally sensitive areas (as defined by code)

The Problem With Invasive Plants

Your Role in Invasive Plant Control

How you can help stop the spread of invasive plants

Invasive Plant Profiles

Eleven invasive weeds found in the Portland area

• Yellow Flag Iris
• Tree of Heaven
• Purple Loosestrife
• American Pokeweed
• Parrot Feather
• Japanese Knotweed
• Garlic Mustard
• Fennel
• English Ivy
• Clematis
• Butterfly Bush