| china | | polygonum cuspidatum | species | 5 | 0 |
| japan | | polygonum cuspidatum | species | 2 | 0 |
| japan | aomori prefecture | polygonum cuspidatum var. uzenensis | varietas | 1 | 0 |
| japan | hokkaido prefecture | polygonum cuspidatum | species | 0 | 1 |
| japan | hyogo prefecture | polygonum cuspidatum | species | 1 | 0 |
| japan | nagano prefecture | polygonum cuspidatum | species | 3 | 0 |
| japan | nagano prefecture | polygonum cuspidatum var. uzenensis | varietas | 1 | 0 |
| japan | okayama prefecture | polygonum cuspidatum | species | 1 | 0 |
| japan | shizuoka prefecture | polygonum cuspidatum | species | 3 | 0 |
| japan | shizuoka prefecture | polygonum cuspidatum var. terminalis | varietas | 32 | 0 |
| japan | yamanashi prefecture | polygonum cuspidatum | species | 2 | 0 |
| united states | california | polygonum cuspidatum | species | 0 | 1 |
| united states | mississippi | polygonum cuspidatum | species | 0 | 1 |