| canada | new brunswick | reynoutria japonica | species | 1 | 0 |
| canada | quebec | reynoutria japonica | species | 4 | 0 |
| china | | reynoutria japonica | species | 5 | 0 |
| china | hubei | reynoutria japonica | species | 2 | 0 |
| china | sichuan | reynoutria japonica | species | 2 | 0 |
| japan | | reynoutria japonica | species | 1 | 0 |
| japan | | reynoutria japonica var. japonica | varietas | 1 | 0 |
| japan | kyoto prefecture | reynoutria japonica | species | 1 | 0 |
| japan | nagano prefecture | reynoutria japonica var. japonica | varietas | 2 | 0 |
| poland | mazovia province | reynoutria japonica | species | 46 | 0 |
| south korea | | reynoutria japonica | species | 1 | 0 |
| united kingdom | england | reynoutria japonica | species | 1 | 0 |
| united states | | reynoutria japonica | species | 1 | 0 |
| united states | connecticut | reynoutria japonica | species | 1 | 0 |
| united states | florida | reynoutria japonica | species | 1 | 0 |
| united states | maine | reynoutria japonica | species | 299 | 0 |
| united states | massachusetts | reynoutria japonica | species | 18 | 0 |
| united states | new york | reynoutria japonica | species | 1 | 0 |
| united states | rhode island | reynoutria japonica | species | 1 | 0 |
| united states | tennessee | reynoutria japonica | species | 3 | 0 |
| united states | vermont | reynoutria japonica | species | 1 | 0 |
| united states | virginia | reynoutria japonica | species | 1 | 0 |
| united states | washington | reynoutria japonica | species | 3 | 0 |
| united states | wisconsin | reynoutria japonica | species | 97 | 0 |