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  3. Hydrocotyle ranunculoides

Hydrocotyle ranunculoides

Basic information
Scientific name Hydrocotyle ranunculoides

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ブラジルチドメグサ
Common names Floating marshpennywort, Pennywort,water pennywort, floating pennywort
Higher taxon Apiaceae, Apiales, Magnoliopsida, Magnoliophyta
Natural range South America.
Habitat Stream, waterfront.
Invasion information
Range in Japan Okayama, Oita, Fukuoka, and Kumamoto Prefs. Range in Japan
Origin Unknown.
Date The first record in Japan was in 1998 on Kyushu Island.
Route Deliberate: As ornamental plant
Impact Explosively infest and prevent growth of native species.
Affected organism: Aquati plants.
Regulation in Japan Import, transport and keeping are prohibited in Japan by the Invasive Alien Species Act.
Introduced range in other countries Unknown.
Reference Notes
  • JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha. (in Jpn)
  • etc.