| Invasion information | ||
| Range in Japan | Most of entire Japan |   | 
| Origin | Unknown. | |
| Date | Cultured at least since 17 C. | |
| Route | Deliberate: For ornamental plant and as medicine. | |
| Impact | Potentially: Competition with other plants. Fungal parasite. Native organism(s) affected: Native plants, crops, etc. | |
| Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
| Introduced range in other countries | S America, Africa, Europe, Asia, Oceania | |
| Reference | Notes | 
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