| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Polygonaceae | Reynoutria ×bohemica | Bohemian Knotweed, Hybrid Japanese Knotweed | Disturbed areas, sandbars. | Native of e. Asia. | |
| Polygonaceae | Reynoutria japonica var. japonica | Japanese Knotweed, Japanese Bamboo, Japanese Buckwheat | Roadsides, disturbed areas, river banks and sandbars, often forming dense thickets. | Native of e. Asia. |  |
| Polygonaceae | Reynoutria sachalinensis | Giant Knotweed, Sachaline | Disturbed areas, roadsides. | Native of e. Asia. |  |