Dictionary

knotweed

noun knot·weed \ˈnät-ˌwēd\

Definition of KNOTWEED

:  any of several herbs (genus Polygonum) of the buckwheat family with leaves and bracts jointed and having a very short petiole; broadly :  polygonum
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First Known Use of KNOTWEED

1884

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6 ENTRIES FOUND:
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