Japanese |
English- Invasive Species of Japan >
- Vascular plants >
- Elytrigia repens
| Basic information | ||
| Scientific name | Elytrigia repens |
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| Major synonym | Agropyron repens | |
| Common names | Quackgrass, Couch grass, English twitch | |
| Higher taxon | Poaceae, Poales, Liliopsida, Magnoliophyta | |
| Natural range | Mediterranean coast. | |
| Habitat | Natural beach, crop field, some kind of farm area, grassland, stream, urban area, vacancy, waterfront. | |
| Invasion information | ||
| Range in Japan | Almost entire Japan |
|
| Origin | Unknown. | |
| Date | Middle to late 19C | |
| Route | Deliberate: as a pasture plant. | |
| Impact | Competition with native and crop species. Allelopathy. Host for insects, fungi, and nematodes. Native organism(s) affected: Native and crop plants. | |
| Regulation in Japan | Import of stems and leaves of Agropyron from the regions with Mayetiola destructor to Japan is prohibited by the Plant Protection Act. | |
| Introduced range in other countries | Asia, Oceania, North and Latin America. | |
| Reference | Notes |
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