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| September 2007 at Koishikawa Botanical Garden |
September 2007 at Koishikawa Botanical Garden |
September 2007 at Koishikawa Botanical Garden |
| Family | Fabaceae (alt. Leguminosae) |
| Scientific name | Senna obtusifolia (L.) H. S. Irwin & Barneby |
| Synonyms | Cassia humilis (Persoon) Colladon; Cassia obtusifolia L.; Cassia tora auct., non L.; Cassia tora L. var. humilis Persoon; Cassia tora L. var. obtusifolia (Linnaeus) Haines; Cassia toroides Rafinesque; Diallobus falcatus Rafinesque; Diallobus uniflorus Rafinesque; Emelista tora Britton & Rose ex Britton & P. Wilson; Senna toroides Roxburgh |
| Common name | (Japanese common name) ebisu-gusa [oversea weed] |
| (English common name) coffee weed, Java-bean, sicklepod, sicklepod senna | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) [native] unknown (tropical America?) | |
| Chromosomal number | 2n=24, 26, 28 |
| Description | Plants 50-100cm. Leaves 3 pairs leaflets each 2-6cm length, 1-2.5cm width. Flowers yellow corollas 1.5-2.5cm, flowering in August to September. Annual plants (or perennial plants in tropical area). |
| Reference | Senna obtusifolia (L.) H. S. Irwin & Barneby |
| Senna obtusifolia (L.) H. S. Irwin & Barneby | |
| Herbicidal control of sicklepod and coffee senna with Colletotrichum gloeosporioides (US Patent 5529773/1996) | |
| Note | Naturalized plants (introduced as a medical plant from China in 1716-1736). |
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| September 2007 at Koishikawa Botanical Garden |
September 2007 at Koishikawa Botanical Garden |
September 2007 at Koishikawa Botanical Garden |
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| September 2007 at Koishikawa Botanical Garden |
