Bidens frondosa

Basic information
Scientific name	Bidens frondosa	Click to magnify
Common names	Beggar’s Tick, Stickright, Devils Large Beggarticks
Higher taxon	Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range	North America.
Habitat	Rice field, canal, forest, pasture field, fruit garden, riverside, swamp, farm area, vacancy, roadside, etc.

Invasion information
Range in Japan	Almost entire Japan including Amami and Okinawa Islands.
Origin	Unknown.
Date	The first record was in ca. 1920, Biwako Lakeside. Recorded since 1940s in Amamioshima, Tokunoshima, and Okinawajima Is.
Route	Accidental: Details unknown.
Impact	Actually: Competition with native species and crops. Native organism(s) affected: Native grasses, crops, etc.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	South America, Europe, Asia, Oceania

Reference

Notes

DECO (ed) (2006) Dictionary of Alien Species. Tokyo-Shoseki, Tokyo (in Jpn)
Jpn Assoc Advanc Phyto-Regul & Inst Contr Agrochem, Minist Agr, China (2000) Chinese Colored Weed Illustrated Book. Zenkoku-Noson-Kyoiku-Kyokai, Tokyo
JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha, Tokyo (in Jpn)
Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn)
Shimizu (ed) (2003) Naturalized Plants of Japan. Heibonsha, Tokyo (in Jpn)
etc.