COLUMBIA COUNTY
Click on a link below to access weed data maps for Columbia 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 |
Canada thistle |
|
Cirsium arvense |
|
B |
False brome |
|
Brachypodium sylvaticum |
|
B,T |
Garlic mustard |
|
Alliaria petiolata |
|
A,T |
Giant hogweed |
|
Heracleum mantegazzianum |
|
B |
Giant knotweed |
|
Polygonum sachalinense |
|
B, T |
Gorse |
|
Ulex europaeus |
|
B |
Himalayan blackberry |
|
Rubus discolor (precerus) |
|
B |
Himalayan knotweed |
|
Polygonum polystachyum |
|
B |
Japanese knotweed |
|
Polygonum cuspidatum |
|
B |
Meadow knapweed |
|
Centaurea pratensis |
|
B, T |
Purple loosestrife |
|
Lythrum salicaria |
|
B |
Scotch broom |
|
Cytisus scoparius |
|
B |
Small broomrape |
|
Orobanche minor |
|
B, T |
Tansy ragwort |
|
Senecio jacobaea |
|
B |
Yellow flag iris |
|
Iris pseudacorus |
|
