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  3. Cirsium vulgare

Cirsium vulgare

Basic information
Scientific name Cirsium vulgare

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アメリカオニアザミ
Common names Bull thisytle, Spear thistle
Higher taxon Asteraceae, Asterales, Magnoliopsida, Magnoliophyta
Natural range Europe.
Habitat Farm area, fruit garden, pasture field, roadside, vacancy, etc.
Invasion information
Range in Japan Hokkaido, Honshu, and Shikoku Is. Especially spread in Hokkaido, including several small islands such as Rishiri, Rebun, Teuri, Yaghisiri, and Toshimaoshima Is. Range in Japan
Origin North America
Date The first redord was in 1960s, at Hokkaido.
Route Accidental: With grains or pasture.
Impact Actually: Competition with native species, crops, pasture, etc. Harmful for the spines on stems and leaves.
Potentially: Parasite (viruses, insects such as Colorado potato beetle Leptinotarsa decemlineata)
Affected organism: Native grasses, crops, pasture, etc.
Regulation in Japan Import of stems and leaves of genus Cirsius from the countries and regions with Colorado Potato beetle Leptinotarsa decemlineata to Japan is prohibited by the Plant Protection Law.
Introduced range in other countries Asia, Africa, North and South America, Oceania.
Reference Notes
  • DECO (ed) (2006) Dictionary of Alien Species. Tokyo-Shoseki, Tokyo (in Jpn)
  • Hokkaido (2010) Hokkaido Blue List (Accessed on 2011-2-03) http://bluelist.hokkaido-ies.go.jp/ (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 2011-2-03) http://www.env.go.jp/en/nature/as.html (in Jpn)
  • Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (in Jpn)
  • Shimizu (ed) (2003) Naturalized Plants of Japan. Heibonsha, Tokyo (in Jpn)
  • etc.