Invasion information | ||
Range in Japan | Almost entire Japan | |
Origin | Unknown. | |
Date | ca. 1865 | |
Route | Deliberate: As ornamental plant | |
Impact | Actually: Competition with native plants, crops, pasture, etc. Allelopathy, Parasite (insects, fungi, nematodes, viruses) Native organism(s) affected: Native grasses (Mt. Kiraigamine, Yatsugatake, Oze, Senjogahara, etc.), crops, pasture, etc. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Europe, Asia |
Reference | Notes |
|
100 of the Japan’s Worst Invasive Alien Species |