| Country or region name |
Japan |
| Organism group |
plant |
| Order name |
Asterales |
| Family name |
Asteraceae |
| Species name |
Conyza sumatrensis |
| English common name |
fleabane, tall fleabane, broad-leaved fleabane, white horseweed,
Sumatran fleabane, Guernsey fleabane |
| Substantially same species (synonym) |
Conyza albida Willd. ex Spreng., Conyza altissima Bonnet, Conyza bonariensis var. microcephala (Cabrera) Cabrera, Erigeron bonariensis var. microcephala Cabrera, Erigeron sumatrensis Retz. |
| Year of invasion or detection |
1920 |
| Native region |
South America |
| Situation of establishment |
Category 1: Settled before 1950 |
| Taxonomic description |
| |
| Expansion of distribution area |
| |
| Environmental impact |
| |
| Economic damage |
| |
| Reproduction |
| |
| Growth |
| |
| Countermeasure |
| |
| Writer's name and affiliation |
| Mitsuo Horita, NIAES |
