Bidens frondosa




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)



October 2007
at rice paddy
October 2007
at rice paddy
October 2007
at rice paddy



October 2007
at rice paddy
October 2007
at rice paddy



October 2007
at rice paddy
October 2007
at rice paddy