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| October 2007 at lowland swamp |
October 2006 at lowland swamp |
October 2006 at lowland swamp |
| Family | Polygonaceae |
| Subfamily | Polygonoideae |
| Scientific name | Persicaria thunbergii (Siebold & Zuccarini) H. Gross |
| Synonyms | Helxine arifolia Rafinesque; Persicaria sinica Migo; Polygonum arifolium Thunberg, non L.; Polygonum hastatotrilobum Meisner; Polygonum pteropus Hance; Polygonum sinicum (Migo) Fang & Zheng; Polygonum stellatotomentosum W. W. Smith & Romaswami; Polygonum thunbergii Siebold & Zuccarini; Tracaulon thunbergii (Siebold & Zuccarini) Greene; Truellum thunbergii (Siebold & Zuccarini) Soják |
| Common name | (Japanese common name) mizo- soba (ミゾソバ, 溝蕎麦 [meaning: swamp soba (soba = buckwheat)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Russia (Far East), Korea, China, Taiwan | |
| Habitat | Swamp |
| Chromosomal number | 2n=40 |
| Description | Plants 30-70cm tall. Leaves 4-10cm long. Flowers pink or pale purple perianths ca. 4-5mm long, flowering in July to October. Fruits ca. 3mm across. Annual plants. |
| Reference | Polygonum thunbergii Siebold & Zuccarini |
| Substituted phenyl (thiono)carbamates, herbicidal compositions containing the same as active ingredient and method of controlling weeds (US Patent 4491465/1985) | |
| Substituted phenyl carbamates, herbicidal compositions containing the same as active ingredient and method of controlling weeds (US Patent 4521242/1985) |
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|---|---|---|
| October 2007 at lowland swamp |
October 2006 at lowland swamp |
October 2006 at lowland swamp |
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|---|---|---|
| October 2007 at lowland swamp |
October 2007 at lowland swamp |
October 2007 at lowland swamp |
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|---|---|---|
| October 2007 at lowland swamp |
October 2007 at lowland swamp |
October 2006 at lowland swamp |
