Invasion information | ||
Range in Japan | Hokkaido, Nagano Pref., etc. | |
Origin | Unknown. | |
Date | Introduced to Japan in 1961. Established since ca. 1980 | |
Route | Deliberate: As nectar source. At first introduced to Hokkaido, thereafter distributed to most regions. | |
Impact | Potentially: Competition with native species. Native organism(s) affected: Native grasses. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Unknown. |
Reference | Notes |
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