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| April 2007 at my home |
April 2007 at my home |
October 2006 at my home |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Petasites japonicus (Siebold & Zuccarini) Maximovicz |
| Synonyms | Nardosmia japonica Siebold & Zuccarini; Petasites amplus Kitamura; Petasites liukiuensis Kitamura |
| Common name | (Japanese common name) fuki |
| (English common name) butterbur, Japanese butterbur, Japanese sweet coltsfoot | |
| Distribution | (Japan) Honshu (south of Iwate prefecture), Shikoku, Kyushu, Okinawa |
| (Other nations) Russia (Kurile Islands, Sakhalin), Korea, China | |
| Chromosomal number | 2n=58, 3n=87 |
| Description | Leaves 15-30cm width. Flowers female scapes 45cm, white corollas 7.5mm, flowering in April to May. Perennial plants. |
| Reference | Petasites japonicus (Siebold & Zucc.) Maxim. |
| 3-Isoxazolylurea derivatives (US Patent 4062861/1976) | |
| Herbicidal compositions containing 3-isoxazolylurea derivatives (US Patent 4111680/1978) | |
| High-molecular-weight substance having desmutagenic activity extracted from the root of burdock, and process for separating and purifying said substance (US Patent 4474771/1984) | |
| Deodorant and filter using same, as well as method of producing the deodorant (US Patent 4898727/1990) | |
| Deodorant and filter using same, as well as method of producing the deodorant (US Patent 5240699/1993) | |
| Method for controlling plant growth (US Patent 5953857/1999) | |
| Method and system for managing water system habitat environment (US Patent 6387265/2002) | |
| Composition containing pyrrolizidine-alkaloid-free petasites (US Patent 6551626/2003) | |
| Composition containing pyrrolizidine-alkaloid-free petasites (US Patent 7090871/2006) | |
| Extract of petasites japonicus having neuroprotective effect and antioxidant activity (US Patent 20060210652) | |
| Note | Many Japanese authors believe that Petasites japonicus (Siebold et Zuccarini) Maximovicz subsp. giganteus (F. Schmidt ex Trautvetter) Kitamura (syn. Petasites japonicus (Siebold et Zuccarini) Maximovicz var. giganteus (F. Schmidt ex Trautvetter) G. Nicholson) is not a synonym of Petasites japonicus (Siebold & Zuccarini) Maximovicz subsp. japonicus. However some authors describe that Petasites japonicus subsp. giganteus is a synonym of Petasites japonicus subsp. japonicus. |
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| April 2007 at my home |
April 2007 at my home |
October 2006 at my home |
