Scappoose Bay Watershed Council

Share the Vision:

A healthy, vibrant watershed filled with native fish, wildlife and plants.

A community dedicated to the current and future health of the watershed.

A watershed where people can enjoy nature.

 

57420-2 Old Portland Road

Warren, Oregon 97053

Phone: 503-397-7904

Fax: 503-397-9101

 *Working toward healthy communities and creeks from headwaters to the bay*

 

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The following is a sample of invasive weeds that are particularly threatening to the creeks and natural areas of our watershed. More information about these weeds may be found at www.invasivespeciesinfo.gov/plants

 

-Garlic mustard (Alliaria petiolata)

-Japanese knotweed (Polygonum cuspidatum)

-Scotch broom (Cystisus scoparius)

-English ivy (Hedera helix)

-Himalayan blackberry (Rubus discolor)

-English hawthorn (Crataegus laevigata)

-Butterfly bush (Buddleia davidii)

-English holly (Ilex aquifolium)

-Purple loosestrife (Lythrum salicarium)

-Yellow-flag iris (Iris pseudacorus)

-Lunaria, annual honesty (Lunaria annua)

-Dame’s rocket (Hesperis matronalis)

 

Invasive weed species