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  3. Triodanis perfoliata

Triodanis perfoliata

Basic information
Scientific name Triodanis perfoliata

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Major synonym Specularia perfoliata
Common names Common nenus’ Looking-glass
Higher taxon Campanulaceae, Campanulales, Magnoliopsida, Magnoliophyta
Natural range North America.
Habitat Roadside, lawn field, farm area, etc.
Invasion information
Range in Japan Middle to western Japan (Fukushima Pref. and southern part) Range in Japan
Origin Unknown.
Date There is a specimen of 1911 from Tokyo.
Route Deliberate: As ornamental plant.
Impact Potentially: Competition with native species, crops, lawn grass, etc.
Native organism(s) affected: Native plants, crops, lawn grasses, etc.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries Unknown.
Reference Notes
  • Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Osaka (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.