Weed of the Month


The 11 weeds listed here represent species of particular concern in the 4-County area. Please feel free to print and share these profiles for education at home or in the classroom.

Click on the photos for full weed profiles:

English Ivy

English IvyPhoto: Nate Woodard

Butterfly Bush

Butterfly Bush Photo: Tom Forney, ODA

Fennel

FennelPhoto: Tom Forney, ODA

Yellow Flag Iris

Yellow Flag IrisPhoto: Ash Creek Images

Garlic Mustard

Garlic MustardPhoto: Glen Miller, ODA

Japanese Knotweed

KnotweedPhoto: WSSA and XID Serv. Inc.

Purple Loosestrife

Purple LoosestrifePhoto: Eric Coombs, ODA

Tree of Heaven

Tree of HeavenPhoto: Derek Markham

Old Man’s Beard

Old Man's BeardPhoto: City of Portland, BES

American Pokeweed

American PokeweedPhoto: Luc de Leeuw

Parrot Feather

Parrot FeatherPhoto: Elaine Stewart, Metro

For information about how these weeds were selected, please contact the CWMA Coordinator at info@4countycwma.org.