| Country or region name |
Japan |
| Organism group |
plant |
| Order name |
Poales |
| Family name |
Poaceae |
| Species name |
Paspalum distichum |
| English common name |
knotgrass, jointgrass, water couch, seashore paspalum, couch paspalum,
eternity grass, gingergrass, Thompson grass, seaside millet, water finger-grass
|
| Substantially same species (synonym) |
Digitaria paspalodes Michx., Paspalum paspalodes (Michx.) Scribn. |
| Year of invasion or detection |
1924 |
| Native region |
North America |
| Situation of establishment |
Category 3: Settled before 1950, but not distributed all over the
country |
| Taxonomic description |
| |
| Expansion of distribution area |
| |
| Environmental impact |
| |
| Economic damage |
| |
| Reproduction |
| |
| Growth |
| |
| Countermeasure |
| |
| Writer's name and affiliation |
| Mitsuo Horita, NIAES |
