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Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. [1] [2] Common names include Japanese knotweed [2] and Asian knotweed. [3] It is native to East Asia in Japan, China and Korea.
Persicaria longiseta is a species of flowering plant in the knotweed family known by the common names Oriental lady's thumb, bristly lady's thumb, Asiatic smartweed, long-bristled smartweed, low smartweed, Asiatic waterpepper, bristled knotweed, bunchy knotweed, and tufted knotweed.
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]
Persicaria virginiana, also called jumpseed, [2] Virginia knotweed or woodland knotweed [3] is a North American species of smartweed within the buckwheat family. It is unusual as a shade-tolerant member of a mostly sun-loving genus. Jumpseed is a perennial, named for its seeds which can "jump" several feet when a ripe seedpod is disturbed.
Reynoutria sachalinensis, the giant knotweed or Sakhalin knotweed (syns. Polygonum sachalinense , Fallopia sachalinensis ) is a species of Fallopia native to northeastern Asia in northern Japan ( Hokkaidō , Honshū ) and the far east of Russia ( Sakhalin and the southern Kurile Islands ).
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. [3] [4] The genus was segregated from Polygonum. [5]
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs Alphita (c. 1400–1425), it was known as ars-smerte.
Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock.It is also called prostrate knotweed, birdweed, pigweed and lowgrass.It is an annual found in fields and wasteland, with white flowers from June to October.