Japanese knotweed Fallopia japonica Polygonum cuspidatum invasive plant Cape Breton Nova Scotia

Japanese Knotweed (Polygonum cuspidatum): Locally called "elephant ears," this is the most difficult to remove once it starts growing. Pulling after a rain and taking it to the ground after cutting any flower heads from the stem will keep it from spreading.  Britain has had a terrible time with this one.


Polygonum cuspidatum c. MB Whitcomb 2013

Fact sheets:
http://www.gov.im/lib/docs/daff/japaneseknotweedfactsheetjuly06.pdf

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