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| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| February 2008 in Fukuoka Prefecture |
February 2008 in Fukuoka Prefecture |
October 2008 in Fukuoka Prefecture |
| Family | Polygonaceae | |
| Subfamily | Polygonoideae | |
| Scientific name | Persicaria chinensis (L.) H. Gross | |
| Synonyms | Ampelygonum chinense (L.) Lindley; Persicaria chinensis (L.) H. Gross var. siamensis H. Léveillé; Persicaria chinensis (L.) H. Gross var. thunbergiana (Meisner) Okuyama; Persicaria umbellata (Houttuyn) Nakai; Polygonum adenopodum Samuelsson; Polygonum brachiatum Poiret; Polygonum chinense L.; Polygonum chinense L. var. thunbergianum Meisner; Polygonum umbellatum (Houttuyn) Koidzumi; Polygonum sinense J. F. Gmelin; Rumex umbellatus Houttuyn | |
| Common name | (Japanese common name) tsuru-soba (ツルソバ, 蔓蕎麦 [meaning: creeping soba (soba = buckwheat)]) | |
| (English common name) Chinese knotweed | ||
| Distribution | (Japan) Honshu (Pacific Ocean side; west of Izu Peninslar), Shikoku, Kyushu | |
| (Other nations) Korea, China, Taiwan, Philippines, Thailand, Malaysia, Indonesia, Myanmar, Nepal, Bhutan, India, Sri Lanka | ||
| Habitat | Seaside | |
| Chromosomal number | 2n=32 | |
| Description | Plants creeping or electing ca. 100cm long. Leaves 5-10cm long, 3-6cm wide. Flowers pink or white perianths ca. 3-4mm long, flowering in May to November. Perennial plants. | |
| Reference | Persicaria chinensis (L.) H. Gross | |
| Polygonum chinense Linnaeus |
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|---|---|---|
| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| February 2008 in Fukuoka Prefecture |
February 2008 in Fukuoka Prefecture |
October 2008 in Fukuoka Prefecture |
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|---|---|
| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| October 2008 in Fukuoka Prefecture |
February 2008 in Fukuoka Prefecture |
