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| February 2007 at Tsukuba Botanical Garden |
| Family | Hamamelidaceae |
| Scientific name | Hamamelis japonica Siebold et Zuccarini var. obtusata Matsumura |
| Synonyms | Hamamelis incarnata Makino; Hamamelis japonica Siebold et Zuccarini cv. Obtusata; Hamamelis obtusata (Matsumura) Makino |
| Common name | (Japanese common name) maruba mansaku [round leaved mansaku] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido (Southwest region), Honshu (mainly Japan Sea side) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Flowers yellow, flowering in February to March. Deciduous. Subarbor trees. |
| Reference | Skin preparation for external use (Japanese Patent JP3849269/2006) |
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| February 2007 at Tsukuba Botanical Garden |
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| March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
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| December 2007 at Ibaraki Prefecture Botanical Garden |
