Invasion information |
Range in Japan |
The first record of establishment (1916) was in Hakone, Kanagawa Pref. Current distribution is urban area in Hokkaido to Kinki District. Not so abundant. |
|
Origin |
Unknown. |
Date |
Introduced in 1896. The first record of establishment was in 1916 at Hakone. |
Route |
Deliberate: As ornamental. |
Impact |
Potentially: Competiton with native species. In the USA, milk is contaminated with some harmful substance when cow eats this species. Native organism(s) affected: Native plants in urban to forest area. |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
South Korea. |