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  2. Reynoutria japonica - Wikipedia

    en.wikipedia.org/wiki/Reynoutria_japonica

    New leaves of Reynoutria japonica are dark red and 1 to 4 cm (1 ⁄ 2 to 1 + 1 ⁄ 2 in) long; young leaves are green and rolled back with dark red veins; leaves are green and shaped like a heart flattened at the base, or a shield, and are usually around 12 cm (5 in) long. Mature R. japonica forms 2-to-3-metre-tall (6 + 1 ⁄ 2 to 10 ft), dense ...

  3. Reynoutria - Wikipedia

    en.wikipedia.org/wiki/Reynoutria

    Reynoutria is a genus of flowering plants in the Polygonaceae, also known as the knotweed or buckwheat family. The genus is native to eastern China, Eastern Asia and the Russian Far East , although species have been introduced to Europe and North America. [ 1 ]

  4. Fallopia - Wikipedia

    en.wikipedia.org/wiki/Fallopia

    Fallopia is a genus of about 12 species of flowering plants in the buckwheat family, [2] often included in a wider treatment of the related genus Polygonum in the past, and previously including Reynoutria. [3]

  5. Bohemian knotweed - Wikipedia

    en.wikipedia.org/wiki/Bohemian_knotweed

    Bohemian knotweed is a nothospecies that is a cross between Japanese knotweed and giant knotweed.It has been documented as occurring in the wild in Japan. [1] The scientific name is accepted to be Reynoutria × bohemica, [2] but it may also be referred to as Fallopia × bohemica and Polygonum × bohemicum.

  6. Reynoutria sachalinensis - Wikipedia

    en.wikipedia.org/wiki/Reynoutria_sachalinensis

    Reynoutria sachalinensis is a herbaceous perennial plant growing to 2–4 m (79–157 in) tall, with strong, extensively spreading rhizomes forming large clonal colonies. The leaves are some of the largest in the family, up to 15–40 cm (6–15.5 in) long and 10–28 cm (4–11 in) broad, nearly heart-shaped, with a somewhat wavy, crenate margin.

  7. Aphalara itadori - Wikipedia

    en.wikipedia.org/wiki/Aphalara_itadori

    Aphalara itadori, the Japanese knotweed psyllid, is a species of psyllid from Japan which feeds on Japanese knotweed (Reynoutria japonica).. The UK Government licensed the use of this species as a biological control to counter the spread of Japanese knotweed in England; this was the first time that biological control of a weed was sanctioned in the European Union.

  8. Knotweed - Wikipedia

    en.wikipedia.org/wiki/Knotweed

    Reynoutria japonica or Japanese knotweed, a highly invasive species in Europe and North America Index of plants with the same common name This page is an index of articles on plant species (or higher taxonomic groups) with the same common name ( vernacular name).

  9. Ann Conolly - Wikipedia

    en.wikipedia.org/wiki/Ann_Conolly

    Japanese knotweed (Reynoutria japonica), native to Asia, is one of the most damaging invasive alien plants in the world. [3] It became her major research focus and led to publication of a groundbreaking analysis of the history and distribution of this invasive weed in 1977. [4]

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