Invasion information | ||
Range in Japan | Almost entire Japan | |
Origin | Unknown. | |
Date | Recorded since late 1940s in Tokai District. | |
Route | Deliberate: For horticulture and greening | |
Impact | Competition with riverside vegetation Native organism(s) affected: Riverside vegetation, etc. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Unknown. |
Reference | Notes |
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