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Orychophragmus violaceus

Basic information
Scientific name Orychophragmus violaceus

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ショカッサイ
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 Range in 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.
Affected organism: 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.