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| October 2007 at rice paddy |
October 2007 at rice paddy |
October 2007 at rice paddy |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Bidens frondosa L. |
| Synonyms | Bidens frondosa L. forma anomala (Porter ex Fernald) Fernald; Bidens frondosa L. var. anomala Porter ex Fernald; Bidens frondosa L. var. caudata Sherff; Bidens frondosa L. var. pallida (Wiegand) Wiegand; Bidens frondosa L. var. puberula Wiegand; Bidens frondosa L. var. stenodonta Fernald & H. St. John; Bidens melanocarpa Wiegand; Bidens melanocarpa Wiegand var. pallida Wiegand; Bidens puberula (Wiegand) Rydberg; Bidens vulgata Greene forma puberula (Wiegand) Fernald; Bidens vulgata Greene var. puberula (Wiegand) Greene |
| Common name | (Japanese common name) america sendan-gusa [American sendan weed (sendan = Melia azedarach)] |
| (English common name) beggarticks, devil's beggartick, stick-tight | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) [native] Canada, USA | |
| Chromosomal number | 2n=24, 48, 72 |
| Description | Plants 100-150cm. Leaves 8-15cm length. Flowers yellow head 1-2cm, flowering in September to October. Annual plants. |
| Reference | Bidens frondosa L. |
| Bidens frondosa L. | |
| Bidens frondosa Linnaeus | |
| Bidens frondosa L. | |
| Haloacetamide compounds, process for production thereof, and use thereof as herbicide (US Patent 4895587/1990) | |
| Imino[(3-halogenophenyl)amino]acetic acid derivatives and herbicides (US Patent 5006160/1991) | |
| Herbicidal composition exhibiting synergistic activity (US Patent 5482922/1996) | |
| Herbicidal composition (US Patent 6001774/1999) | |
| Note | Naturalized plants (first recorded as that introduced in 1920) |
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| October 2007 at rice paddy |
October 2007 at rice paddy |
October 2007 at rice paddy |
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| October 2007 at rice paddy |
October 2007 at rice paddy |
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| October 2007 at rice paddy |
October 2007 at rice paddy |
