Invasion information | ||
Range in Japan | Tokyo, Saitama, Kanagawa, Shizuoka, Aichi, Mie, Toyama, kyoto, Osaka, Wakayama, Hyogo, Shimane, Yamaguchi, Tokushima, Saga, Kumamoto, and Kagawa Prefs. | |
Origin | Unknown. | |
Date | Begining of Showa Era (1920s) | |
Route | Deliberate: For horticulture. | |
Impact | Competition with native species. Native organism(s) affected: Native herbs. | |
Regulation in Japan | Release of this species in Aichi Prefecture is controled by a prefectural ordinance. | |
Introduced range in other countries | Asia, New Zealand, etc. |
Reference | Notes |
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