Invasion information | ||
Range in Japan | Almost entire Japan | |
Origin | North America | |
Date | Introduced since 1959 | |
Route | Deliberate: For sand erosion control | |
Impact | Competition with native species. Modification of environment by sand sedimentation along river side. Host for fungi. Native organism(s) affected: Native plants. | |
Regulation in Japan | Keeping of this species in Saga Pref. are controled by a prefectural ordinance. | |
Introduced range in other countries | North and Latin America, S Europe, Asia, and Oceania |
Reference | Notes |
|
100 of the Japan’s Worst Invasive Alien Species |