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  3. Veronica arvensis

Veronica arvensis

Basic information
Scientific name Veronica arvensis

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Common names Corn speedwell, wall speedweed
Higher taxon Scrophulariaceae, Scrophulariales, Magnoliopsida, Magnoliophyta
Natural range Europe and Africa
Habitat Roadside, farm area, pasture, vacancy, lawn field, etc.
Invasion information
Range in Japan Almost entire Japan Range in Japan
Origin Unknown.
Date The first record was in ca. 1870, at Tokyo
Route Accidental: Details unknown.
Impact Competition with native species, crops, pasture, lawn grass, etc. Parasite (fungi)
Affected organism: Native grasses, crops, etc.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries N Africa, Asia, Australia, North and South Amrica.
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.