Invasion information | ||
Range in Japan | Almost entire Japan |
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Origin | Unknown. | |
Date | The first record in Japan was in 1929, at Okayama Pref. | |
Route | Accidental: Details unknown. | |
Impact | Actually: Competition with native species, crops, pastures, etc. Allelopathy. Affected organism: Native grasses including native congeners, crops, pastures, etc. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | South America, Europe, Asia, Oceania |
Reference | Notes |
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100 of the Japan’s Worst Invasive Alien Species |