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| May 2008 at Kyoto Botanical Garden |
May 2008 at Kyoto Botanical Garden |
May 2008 at Kyoto Botanical Garden |
| Family | Polygonaceae |
| Subfamily | Polygonoideae |
| Scientific name | Rumex nepalensis Splengel |
| Synonyms | Rumex andreaeanus Makino; Rumex daiwoo Makino var. andreaeanus (Makino) Makino; Rumex esquirolii H. Léveillé; Rumex nepalensis Sprengel subsp. andreaeanus (Makino) Yonekura; Rumex nepalensis Splengel var. andreaeanus (Makino) Kitamura; Rumex ramulosus Meisner |
| Common name | (Japanese common name) kibune-daiou (キブネダイオウ, 貴船大黄 [meaning: Kibune daiou (Kibune = a local area in Kyoto City, daiou = Rheum officinalis)]) |
| (English common name) Nepal dock | |
| Distribution | (Japan) Honshu (Kyoto Prefecture, Okayama Prefecture) |
| (Other nations) China, Vietnam, Indonesia, Myanmar, Nepal, Bhutan, India, Pakistan, Afghanistan, Tajikistan, Iran, Lebanon, Turkey, Albania, Greece, Italy | |
| Habitat | Riverside |
| Chromosomal number | 2n=120 |
| Description | Plants electing 50-150cm tall. Leaves 10-25cm long. Flowers green, flowering in April to May. Perennial plants. |
| Reference | Rumex nepalensis Spreng. |
| Rumex nepalensis Sprengel | |
| Rumex nepalensis Spreng. | |
| Chromosome numbers of 11 species in Japanese Rumex subg. Rumex(Polygonaceae) | |
| Present condition and hybridization of endangered plant Rumex nepalensis var. andreaeanus in Kibune River of Kyoto | |
| Process for producing a plant extract containing plant powder (US Patent 20040161524) | |
| Anthracenedione Compounds (US Patent 20070238784) | |
| Lipid metabolish-improving food (Japanese Patent JP2524067) | |
| Note | Native plant is very rare. Cultivated in many places for medical use. |
| Some authors have suggested that Rumex nepalensis occuring in Japan was introduced from China in ancient era and had been cultivated in very limmited area in Japan. | |
| Rumex nepalensis occuring in Japan is protected by some national and lical laws and regulations as a threatend plant. The legislation was based on a conception that the species has been a local variety of Rumex nepalensis and endemic to Japan. However, if the plant is not endemic to Japan then legal validity of such a legislation (especially penal provisions) may be in doubt. |
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| May 2008 at Kyoto Botanical Garden |
May 2008 at Kyoto Botanical Garden |
May 2008 at Kyoto Botanical Garden |
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| May 2008 at Kyoto Botanical Garden |
May 2008 at Kyoto Botanical Garden |
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| May 2008 at Kyoto Botanical Garden |
