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| February 2007 at Koishikawa Botanical Garden |
February 2007 at Koishikawa Botanical Garden |
February 2007 at Koishikawa Botanical Garden |
| Family | Hamamelidaceae |
| Scientific name | Hamamelis vernalis Sargent |
| Synonyms | Hamamelis vernalis var. tomentella (Rehder) E. J. Palmer |
| Common name | (Japanese common name) hayazaki mansaku [early flowering mansaku (mansaku = first spring flowring or much flowering)] |
| (English common name) Ozark witch-hazel, vernal witch-hazel | |
| Distribution | (Japan) garden plants |
| (Other nations) [native] USA | |
| Chromosomal number | 2n=24 |
| Description | Plants 2-4m. Leaves 7-13cm. Flowers red to orange (or yellow) petals each 7-10mm, flowering in December to March. Deciduous. Shrub. |
| Reference | Hamamelis vernalis Sarg. |
| Hamamelis vernalis Sargent | |
| Use of protoberberines as an active substance regulating the pilosebaceous unit (WIPO Patent WO/2007/029187) | |
| Oral delivery formulation (WIPO Patent WO/1999/030690) |
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| February 2007 at Koishikawa Botanical Garden |
February 2007 at Koishikawa Botanical Garden |
February 2007 at Koishikawa Botanical Garden |
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| January 2008 at Tsukuba Botanical Garden |
