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Lilium formosanum

Basic information
Scientific name Lilium formosanum

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Common names Formosa lily
Higher taxon Liliaceae, Liliales, Liliopsida, Magnoliophyta
Natural range Taiwan
Habitat Urban area, vacancy, river side, etc.
Invasion information
Range in Japan Miyagi, Fukushima, Kanto District to western Japan, Ryukyus. Range in Japan
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
Reference Notes
The species is now spreading nationwide in Japan, and proper management is necessary to reduce the adverse effect on natural vegetation. However, its ecological impacts are still missing, and quantitative assessments are urgently needed.