National Institute for Environmental Studies Invasive Species of Japan Japanese | English
  1. Invasive Species of Japan >
  2. Vascular plants >
  3. Bidens pilosa var. pilosa

Bidens pilosa var. pilosa

Basic information
Scientific name Bidens pilosa var. pilosa

Click to magnify

Common names Hairy beggar-ticks, Cobbler’s pegs, Railway beggarticks
Higher taxon Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range North America.
Habitat Farm area, fruit garden, pasture field, lawn field, roadside, vacancy, riverside, etc.
Invasion information
Range in Japan Middle Honshu and western regions. Range in Japan
Origin Unknown.
Date Middle 19C or earlier.
Route Accidental: Details unknown.
Impact Competition with native species and crops. Parasite (insects, fungi, viruses, nematodes).
Affected organism: Native grasses, crops, etc.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries South America, Africa, Asia, Oceania, Europe, Pacific Islands such asu Hawaii, Galapagos, etc.
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.