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

Words Nearby knotweed

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use knotweed in a sentence

  • There are many edible invasive plants and weeds out there, like knotweed and some species of pokeweed.

  • Japanese knotweed, for all its invasive attributes, was an ornamental plant for the Victorians.

    The Best of Brit Lit | Peter Stothard | December 17, 2010 | THE DAILY BEAST
  • It is Polygonum Virginicum, and so far without a common name, unless Virginia knotweed be satisfactory.

    Seed Dispersal | William J. Beal
  • Those of us who are gardeners will certainly agree that “unfortraedde” is the right name for knotweed.

    The Old English Herbals | Eleanour Sinclair Rohde
  • A common roadside flower is the Pink knotweed, with its branching stems and groups of bright pink flowers.

    Woodcraft | Alan Douglas

British Dictionary definitions for knotweed

knotweed

/ (ˈnɒtˌwiːd) /


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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012