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MARION COUNTY

Click on a link below to access weed data maps for Marion County, Oregon. Data maps reflect data collected by federal, state, county and local weed control agencies; they do not always represent the entire distribution of the weed.

View maps by weed

B
Bull thistle
Cirsium vulgare
B
Butterfly bush
Buddleja davidii
B
Canada thistle
Cirsium arvense
B
Diffuse knapweed
Centaurea diffusa
B
English ivy
Hedera helix
B
False brome
Brachypodium sylvaticum
B
Field bindweed
Convolvulus arvensis
A,T
Giant hogweed
Heracleum mantegazzianum
B
Giant knotweed
Polygonum sachalinense
B, T
Gorse
Ulex europaeus
B
Himalayan blackberry
Rubus discolor (precerus)
B
Italian thistle
Carduus pycnocephalus
B
Japanese knotweed
Polygonum cuspidatum
B
Meadow knapweed
Centaurea pratensis
B
Milk thistle
Silybum marianum
B, T
Purple loosestrife
Lythrum salicaria
B
Puncturevine
Tribulus terrestris
B
Scotch broom
Cytisus scoparius
B, T
Spotted knapweed
Centaurea maculosa
B
St.Johnswort (Klamath weed)
Hypericum perforatum
B
Yellow toadflax
Linaria vulgaris
B, T
Tansy ragwort
Senecio jacobaea

 

 


Property of the WeedMapper Team, Dept. of Rangeland Ecology & Management, Oregon State University. Copyright 2004. All rights reserved. Design by STP.