''Persicaria filiformis'' is a species of flowering plant in the family Polygonaceae, native to the Kuril Islands, Japan (including the Ryukyu Islands), Korea, Myanmar, the Philippines and Vietnam. It was first described as ''Polygonum filiforme'' in 1784 by

Carl Thunberg Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg (11 November 1743 – 8 August 1828), was a Swedish naturalist and an "apostle" of Carl Linnaeus. After studying under Linnaeus at Uppsala Un ...

and transferred to the genus '' Persicaria'' in 1819 by

Takenoshin Nakai was a Japanese botanist. In 19191919. Notulae and Plantas Japoniae at Koreae X XI. The Botanical Magazine (Tokyo) 33(395): 193–194. and 19301930. Plantae Japonicae & Koreanae. The Botanical Magazine (Tokyo) 44(526): 508. he published papers on ...

. The species has been treated as the variety ''filiformis'' of ''

Persicaria virginiana ''Persicaria virginiana'', also called jumpseed, Virginia knotweed or woodland knotweed 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 p ...

'', a North American species. File:이삭여뀌 잎.JPG, Form with marked leaves

References

filiformis Flora of the Kuril Islands Flora of Japan Flora of the Ryukyu Islands Flora of Korea Flora of Myanmar Flora of the Philippines Flora of Vietnam Plants described in 1784 {{Polygonaceae-stub