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Conyza sumatrensis

Basic information
Scientific name Conyza sumatrensis

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オオアレチノギク
Common names Sumatran Fleabane, Tall Fleabane
Higher taxon Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range South America.
Habitat Farm area, vacancy, fruit garden pasture field, roadside, etc.
Invasion information
Range in Japan Honshu, Shikoku, and Kyushu Is. Range in Japan
Origin Unknown.
Date The first record in Japan was in 1920, at Tokyo.
Route Accidental: Details unknown.
Impact Competition with native species. Allelopathy. This species seems excluding another alien species C. banariensis.
Affected organism: Native grasses, etc.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries Africa, Asia, Oceania.
Reference Notes
  • DECO (ed) (2006) Dictionary of Alien Species. Tokyo-Shoseki, Tokyo (in Jpn)
  • Ecol Soc Jpn (ed) (2002) Handbook of Alien Species in Japan. Chijinshokan, Tokyo (in Jpn)
  • Hotta et al. (1989) Useful Plants of the World. Heibonsha, Tokyo (in Jpn)
  • JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha, Tokyo (in Jpn)
  • Ministry of the Environment, Japan. The Invasive Alien Species Act (Accessed on 2011-02-03) http://www.env.go.jp/en/nature/as.html (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.
100 of the Japan’s Worst Invasive Alien Species