knotweed

[ not-weed ]
/ ˈnɒtˌwid /

noun

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

Origin of knotweed

First recorded in 1570–80; knot1 + weed1

Words nearby knotweed

knotted, knotter, knotting, knotty, knotty rhatany, knotweed, knotwork, knout, know, know a thing or two, know all the answers

Example sentences from the Web for knotweed

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

    The Best of Brit Lit |Peter Stothard |December 17, 2010 |DAILY BEAST

  • Those of us who are gardeners will certainly agree that “unfortraedde” is the right name for knotweed.

    The Old English Herbals |Eleanour Sinclair Rohde

  • It is Polygonum Virginicum, and so far without a common name, unless Virginia knotweed be satisfactory.

    Seed Dispersal |William J. Beal

British Dictionary definitions for knotweed

knotweed
/ (ˈnɒtˌwiːd) /

noun

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