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| May 2008 at Kochi Prefecture Makino Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
| Family | Nymphaeaeceae |
| Scientific name | Nuphar japonica de Candolle |
| Synonyms | Nuphar japonica de Candolle var. crenata Caspary; Nuphar japonica de Candolle forma rubrotinctum (Caspary) Kitamura; Nymphaea japonica (de Candolle) G. Lawson; Nuphar japonicum de Candolle; Nymphaea japonica Lawson; Nymphozanthus japonicus (de Candolle) Fernald |
| Common name | (Japanese common name) koh-hone (コウホネ, 河骨 [meaning: white bone]) |
| (English common name) yellow water lily | |
| Distribution | (Japan) Hokkaido (Southwestern region), Honshu, Shikoku, Kyushu |
| (Other nations) Korea | |
| Habitat | Pond, swamp |
| Chromosomal number | 2n=34 |
| Description | Leaves 20-30cm long. Flowers yellow or red (N. japonica forma rubrotinctum) 4-5cm, flowering in June to September. Water plants. Perennial plants. |
| Reference | Nuphar japonica DC. |
| Morphological Variation and Classification of Nuphar with Special Reference to Populations in Central to Western Japan | |
| Hair cosmetic composition (US Patent 5053222/1989) | |
| Detergent composition containing a quaternary ammonium cationic surfactant and a carboxylate anionic surfactant (US Patent 4919846/1990) | |
| Water purificant (US Patent 6254800/2001) | |
| Antidiabetic external skin application composition (US Patent 6174543/2001) | |
| Method and system for managing water system habitat environment (US Patent 6387265/2002) | |
| Water purificant methods (US Patent 6478985/2002) | |
| Hair treatment composition and hair cosmetic for damaged hair (US Patent 20060165636) | |
| Cosmetic composition and production thereof (US Patent 20060018867) | |
| Note | Nuphar subintegerrima (Caspary) Makino (syn. Nuphar japonica de Candolle var. subintegerrima Caspary) is not a synonym of Nuphar japonica de Candolle. |
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| May 2008 at Kochi Prefecture Makino Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
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| September 2007 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
July 2008 at the Imperial Palace |
