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| March 2008 at Koch Prefecture Makino Botanical Garden |
March 2008 at Koch Prefecture Makino Botanical Garden |
March 2008 at Koch Prefecture Makino Botanical Garden |
| Family | Hamamelidaceae |
| Scientific name | Corylopsis spicata Siebold & Zuccarini |
| Synonyms | none |
| Common name | (Japanese common name) tosa mizuki [Tosa water tree (Tosa = an old name of Kochi Prefecture)] |
| (English common name) spike winter hazel | |
| Distribution | (Japan) Shikoku (Kochi Prefecture) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants 2-4m. Leaves 5-10cm. Flowers 5 yellow petals each 7mm, flowering in March to April. Deciduous. Shrub. |
| Reference | Corylopsis spicata Siebold & Zucc. |
| Composition against cardiovascular diseases (WIPO Patent WO/2006/032115) | |
| Note | Native to Japan. Some authors have argued that Corylopsis spicata Siebold & Zuccarini is a same species as Corylopsis sinensis Hemsley. However Corylopsis spicata Siebold & Zuccarini is not a same species as Corylopsis sinensis Hemsley. Everyone who may visit at Koishikawa Botanical Garden (Tokyo, Japan) can know difference between Corylopsis spicata Siebold & Zuccarini and Corylopsis sinensis Hemsley. |
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| March 2008 at Koch Prefecture Makino Botanical Garden |
March 2008 at Koch Prefecture Makino Botanical Garden |
March 2008 at Koch Prefecture Makino Botanical Garden |
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| March 2008 at Koch Prefecture Makino Botanical Garden |
March 2008 at Koch Prefecture Makino Botanical Garden |
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| November 2007 at Ushiku Forest Park |
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| November 2007 at Ushiku Forest Park |
