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Nasturtium officinale

Basic information
Scientific name Nasturtium officinale

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オランダガラシ
Common names Watercress
Higher taxon Brassicaceae, Capparales, Magnoliopsida, Magnoliophyta
Natural range Europe.
Habitat Various waterfront. Rice field, ditch, lakeside, etc.
Invasion information
Range in Japan Most of entire Japan Range in Japan
Origin Unknown.
Date 1870-1871
Route Deliberate: Cultivated by foreign people for food and medicine, and after escaped.
Impact Potentially: Competition with native species. Parasite (insects)
Affected organism: Water front plants.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries North and South America, Asia, Oceania
Reference Notes
  • Hotta et al. (1989) Useful Plants of the World. Heibonsha, 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 (in Chn and Eng)
  • Ministry of the Environment, Japan. The Invasive Alien Species Act (Accessed on 2011-1-11) http://www.env.go.jp/en/nature/as.html (in Jpn)
  • Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn)
  • etc.