![Japanese knotweed (Photo by S. Kelly Kearns, Wisc. DNR)](https://hort.extension.wisc.edu/files/2014/11/Polygonum_cuspidatum3.jpg)
Brock Woods, UW-Extension
Revised: 11/2/2011
Item number: DNR PUB-ER-657
Japanese Knotweed, which is native to Asia, has become an invasive plant in Wisconsin. This brochure describes the plant and gives recommendations for control.
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