Invasion information | ||
Range in Japan | Almost entire Japan | |
Origin | Unknown. | |
Date | Middle 19C or earlier. There is a record in 1709. | |
Route | Deliberate: As green manure, pasture plant, nectar soruce, and landscape plant. | |
Impact | Competition with native plants. Accumulation of nitrogen in the soil. Native organism(s) affected: Native plants. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Unknown. |
Reference | Notes |
|