Invasion information |
Range in Japan |
Miyagi, Fukushima, Kanto District to western Japan, Ryukyus. |
|
Origin |
Unknown. |
Date |
1923-1924 |
Route |
Deliberate: As ornamental plant. |
Impact |
Due to its aggressive growth, this species is believed to compete with native species with similar growing habitats (niches). It is known that the species can produce fertile offspring with closely related native species. Since the species harbours various plant viruses, such as Cucumber mosaic virus (CMV-Li), Tulip mosaic virus (TBV-L), and Lily virus X. There is a risk of these viruses spreading to native species. |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
Australia |