Invasion information | ||
Range in Japan | Introduced to Honshu, Shikoku, and Tsushima Is. from China and South Korea. | |
Origin | Continental China and South Korea | |
Date | 1990s. | |
Route | Deliberate: For slope protection | |
Impact | Competition, hybridization with native species. Native organism(s) affected: Native herbs, conspecific native population. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Unknown. |
Reference | Notes |
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This species is assigned as a near threatend species (NT) in the Japanese national red list, and as a vulnerable species in the red lists of Tokyo and Chiba Prefs. For slope protection in Japan, there are many cases using imported seeds from China and South Korea, as “native species,” as the case of this species. |