National Institute for Environmental Studies Invasive Species of Japan Japanese | English
  1. Invasive Species of Japan >
  2. Vascular plants >
  3. Dactylis glomerata

Dactylis glomerata

Basic information
Scientific name Dactylis glomerata

Click to magnify

Common names Orchardgrass, Cocksfoot
Higher taxon Poaceae, Poales, Liliopsida, Magnoliophyta
Natural range Mediterranean coast to W Asia.
Habitat Crop field, some kind of farm area, grassland, urban area, vacancy, waterfront.
Invasion information
Range in Japan Hokkaido, Honshu, Shikoku, and Kyushu. Range in Japan
Date Imported in 1860s
Route Deliberate: As pasture grass
Impact Competition with native plants and some crops. Host of insects and fungi. Pollen is an allergen for hay fever.
Affected organism: Native plants and crop plants.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries Africa, Asia, North and Latin America, and Oceania.
Reference Notes
  • Osada (1976) Colored Illustrations of Naturalized Plants of Japan. Hoikusha, Tokyo (in Jpn)
  • Satake et al. (1982) Wild Flowers of Japan, Herbaceous Plants [I]. 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