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A variegated variety of Japanese knotweed, used as a landscape plant. Japanese knotweed flowers are valued by some beekeepers as an important source of nectar for honeybees, at a time of year when little else is flowering. Japanese knotweed yields a monofloral honey, usually called bamboo honey by northeastern U.S. beekeepers, like a mild ...
Japanese Knotweed. Not only can Japanese Knotweed wreak havoc on your garden, but it can also be extremely difficult to fully eradicate. “Japanese Knotweed is another invasive species that can ...
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.
In the UK, the plant was first introduced in 1839, at the same time as giant hogweed and Japanese knotweed. [20] [21] These plants were all promoted at the time as having the virtues of "herculean proportions" and "splendid invasiveness" which meant that ordinary people could buy them for the cost of a packet of seeds to rival the expensive ...
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]
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 .
Illustration from the Japanese agricultural encyclopedia Seikei Zusetsu (1804) Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae. Plants of the genus are known commonly as knotweeds [2]: 436 or smartweeds. [3] It has a cosmopolitan distribution, with species occurring nearly worldwide.
Date/Time Thumbnail Dimensions User Comment; current: 03:21, 10 September 2021: 3,264 × 2,448 (7.56 MB): Daniel Case {{Information |Description=Japanese knotweed growing on the shore of {{w|Esopus Creek}} near the former hamlet of Beechford, NY, USA, just north of Boiceville.
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