Invasion information |
Range in Japan |
Most of entire Japan |
|
Origin |
South Korea |
Date |
First introduction was in 1912. After W.W.II massively introduced from S Korea. |
Route |
Deliberate: For sand erosion control, slope protection, shore protection, wind shield, ornament, etc |
Impact |
Competition with native plants. Nutrient (soil nitrogen) enrichment. Native organism(s) affected: Native plants (for example those in subalpine belt of Kirigamine Highland and Mt. Hakusan) |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
Unknown. |