Basic information | ||
Scientific name | Bidens pilosa var. radiata | (No picture) |
Common names | Romerillo | |
Higher taxon | Asteraceae, Asterales, Magnoliopsida, Magnoliophyta | |
Natural range | Tropical America | |
Habitat | Roadside, farm area, etc. |
Invasion information | ||
Range in Japan | Southern Kyushu Is., Okinawa, Sakishima, and Ogasawara (Bonin) Islands. |
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Origin | Unknown. | |
Date | Introduced in 1844-1848. The first record in the field was in 1963 at Kochi Pref. | |
Route | Deliberate: As ornamental plant. | |
Impact | Actually: Competition with native species. Noxious weed in cane land. Affected organism: Native grasses, cane, etc. | |
Regulation in Japan | No regulation in Japan | |
Introduced range in other countries | Worldwide |
Reference | Notes |
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100 of the Japan’s Worst Invasive Alien Species. |