knotweed

[ not-weed ]

noun
  1. any of several knotty-stemmed plants belonging to the genus Polygonum, of the buckwheat family.

Origin of knotweed

1
First recorded in 1570–80; knot1 + weed1

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How to use knotweed in a sentence

British Dictionary definitions for knotweed

knotweed

/ (ˈnɒtˌwiːd) /


noun
  1. any of several polygonaceous plants of the genus Polygonum, having small flowers and jointed stems

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