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| October 2007 at roadside |
October 2007 at roadside |
October 2007 at roadside |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Bidens biternata (Loureiro) Merrill and Sherff |
| Synonyms | Bidens chinensis Willdenow; Bidens cylindrica Sherff; Bidens paupercula Sherff; Bidens robertianifolia H. Léveillé & Vaniot; Coreopsis biternata Loureiro |
| Common name | (Japanese common name) sendan-gusa [sendan weed [sendan = Melia azedarach]] |
| (English common name) yellow flowered blackjack, beggar ticks, black jack, five leaved blackjack | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, Malaysia, Australia, India, Africa | |
| Chromosomal number | unknown |
| Description | Plants 30-150cm. Leaves 9-15cm length. Flowers yellow head 7-10mm, flowering in September to November. Annual plants. |
| Reference | Bidens biternata (Lour.) Merr. & Sherff |
| Bidens biternata (Lour.) Merr. & Sherff | |
| BIDENS: A Popular Remedy Escapes Notice of Western Practitioners | |
| Preparation of N-[(1-(thienyl)alkyl]amine derivative (US Patent 5117000/1992) |
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| October 2007 at roadside |
October 2007 at roadside |
October 2007 at roadside |
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| October 2007 at roadside |
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| October 2007 at roadside |
October 2007 at roadside |
