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| September 2005 at Mt. Tsukuba |
September 2005 at Mt. Tsukuba |
September 2005 at Mt. Tsukuba |
| Family | Ranunculaceae |
| Subfamily | Ranunculoideae |
| Tribe | Delphinieae |
| Scientific name | Aconitum deflexum Nakai var. maritimum Tamura & Namba; Aconitum japonicum Thunberg subsp. maritimum (Tamura et Namba) Kadota |
| Synonyms | Aconitum tsukubense Nakai |
| Common name | (Japanese common name) tsukuba torikabuto (ツクバトリカブト, 筑波鳥兜 [meaning: Mt. Tsukuba aconite]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Pacific Ocean side of Tohoku region and Kanto region) |
| (Other nations) none | |
| Habitat | Mountane field |
| Chromosomal number | 2n=32 |
| Description | Plants electing 30-150cm tall. Leaves 2.5-9.5cm long, 2-12cm wide. Flowers blue 3.5-4cm, flowering in September to October. Perennial plants. |
| Reference | Aconitum japonicum Thunb. |
| Pharmaceutically active plant extract and composition thereof (US Patent 4352796/1982) | |
| Hair growth stimulant (US Patent 5401503/1995) | |
| Transdermal delivery system for alkaloids of aconitum species (US Patent 6896898/2005) | |
| Secondary metabolite production via manipulation of genome methylation (WIPO Patent WO/2006/113481) | |
| Note | Containing aconitine. |
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| September 2005 at Mt. Tsukuba |
September 2005 at Mt. Tsukuba |
September 2005 at Mt. Tsukuba |
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| October 2007 at lowland forest edge |
October 2007 at Ushiku Forest Park |
October 2007 at Ushiku Forest Park |
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| October 2007 at Ushiku Forest Park |
