Giant Knotweed
Polygonum sachalinensis |
||
Family Name: |
Polygonaceae |
|
Class: | B | |
Other Names: | Sakhalin knotweed | |
Why is it a noxious weed? | It creates dense colonies that exclude native vegetation and greatly alter natural ecosystems. Established populations are extremely persistent and difficult to eradicate, even very small fragments can form new plants. |
More Information:
|
Visit Washington State Noxious Weed Control Board Here
|