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  • Japanese knotweed, 1 of 6
    Photo 1 of 6

    AnRo0002, no known copyright restrictions (public domain)

  • Japanese knotweed, 2 of 6
    Photo 2 of 6

    (c) Vanessa Pittevils, all rights reserved

  • Japanese knotweed, 3 of 6
    Photo 3 of 6

    (c) JODY HSIEH, some rights reserved (CC BY-NC)

  • Japanese knotweed, 4 of 6
    Photo 4 of 6

    (c) yell, some rights reserved (CC BY-NC)

  • Japanese knotweed, 5 of 6
    Photo 5 of 6

    (c) Douglas Goldman, some rights reserved (CC BY-SA)

  • Japanese knotweed, 6 of 6
    Photo 6 of 6

    (c) 空猫, some rights reserved (CC BY-NC)

1 of 6 photos

Japanese knotweed

Reynoutria japonica

Worldwide
100,204 observations
Group
Plants
iNaturalist Wikipedia

About

Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a large species of herbaceous perennial plant of the knotweed and buckwheat family Polygonaceae. It is commonly known as Asian knotweed or Japanese knotweed. It is native to East Asia in Japan, China and Korea. In North America and Europe, the species has successfully established itself in numerous habitats and is classified as an invasive species in several countries.

Summary from Wikipedia, CC BY-SA 4.0.

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