Orychophragmus violaceus

Basic information
Scientific name	Orychophragmus violaceus	Click to magnify
Common names	Violet orychophragmus
Higher taxon	Brassicaceae, Capparales, Magnoliopsida, Magnoliophyta
Natural range	Continental China.
Habitat	Crop field, some kind of farm area, forest, urban area.

Invasion information
Range in Japan	Almost entire Japan
Origin	Zi Jin Shan, Nan Jing, Continental China
Date	The first record in Japan was in 1894. Current population originate from the introduction in 1939 from Nan Jing, continental China.
Route	Deliberate: For ornament, oil seed.
Impact	Competition with native species. Accerelate the spread of the butterfly Pieris melete. Native organism(s) affected: Native plants, Pieris melete
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	S Europe

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, Tokyo (in Jpn)
Satake et al. (1982) Wild Flowers of Japan, Herbaceous Plants [II]. Heibonsha, Tokyo (in Jpn)
Shimizu (ed) (2003) Naturalized Plants of Japan. Heibonsha, Tokyo (in Jpn)
etc.