Polygonum – Identified

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Date Photo Taken: 05/13/2019
Location: Berlin, VT
Posted By: Erika Boyce


Found in May along dirt road near a pond in vemront


  1. Walter Reeves The Georgia Gardener says:

    BAD weed

    May 16th, 2019 at 12:12 pm
  2. Jim Unregistered says:

    But which species? Anyone?

    May 23rd, 2019 at 10:45 am
  3. laura735 Master Identifier says:

    Hi Jim, taxonomists are hard at work again. According to sources, the Japanese knotweed (Polygonum reynoutia/Polygonum cuspidatum), the accepted name now is Reynoutria japonica Sieb. & Zucc. Those former are now among other synonyms.

    Like Walter said: “BAD weed”.


    May 24th, 2019 at 8:37 am

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