Senecio vulgaris

Basic information
Scientific name	Senecio vulgaris	Click to magnify
Common names	Common groundsel
Higher taxon	Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range	Europe.
Habitat	Farm area, fruit garden, roadside, vacancy, etc.

Invasion information
Range in Japan	Almost entire Japan
Origin	Unknown.
Date	The first record was in 1887.
Route	Accidental: Details unknown.
Impact	Actually: Competition against native species. Very noxious weed in humid crop fields. Potentially: Toxic to cattles. Parasites (insects, fungi, viruses, etc.) Native organism(s) affected: Native grasses, crops, etc.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	Worldwide. North and South America, Asia, Africa, and Oceania.

Reference

Notes

Jpn Assoc Advanc Phyto-Regul & Inst Contr Agrochem, Minist Agr, China (2000) Chinese Colored Weed Illustrated Book. Zenkoku-Noson-Kyoiku-Kyokai, Tokyo
Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn)
Satake et al. (1981) Wild Flowers of Japan, Herbaceous Plants [III]. Heibonsha, Tokyo (in Jpn)
Shimizu (ed) (2003) Naturalized Plants of Japan. Heibonsha, Tokyo (in Jpn)
etc.