| australia | | hovenia dulcis | species | 1 | 0 |
| brazil | | hovenia dulcis | species | 1 | 0 |
| china | | hovenia acerba | species | 3 | 0 |
| china | | hovenia dulcis | species | 1 | 0 |
| china | | hovenia trichocarpa | species | 3 | 0 |
| china | beijing | hovenia acerba | species | 3 | 0 |
| china | guangdong | hovenia acerba | species | 8 | 0 |
| egypt | cairo governorate | hovenia dulcis | species | 2 | 0 |
| japan | | hovenia trichocarpa var. robusta | varietas | 1 | 0 |
| japan | aichi prefecture | hovenia dulcis | species | 2 | 0 |
| japan | ehime prefecture | hovenia trichocarpa var. robusta | varietas | 2 | 0 |
| japan | gifu prefecture | hovenia dulcis | species | 4 | 0 |
| japan | gifu prefecture | hovenia trichocarpa var. robusta | varietas | 4 | 0 |
| japan | iwate prefecture | hovenia trichocarpa var. robusta | varietas | 1 | 0 |
| japan | kochi prefecture | hovenia trichocarpa var. robusta | varietas | 2 | 0 |
| japan | niigata prefecture | hovenia dulcis | species | 2 | 0 |
| japan | shiga prefecture | hovenia trichocarpa var. robusta | varietas | 2 | 0 |
| japan | shizuoka prefecture | hovenia trichocarpa var. robusta | varietas | 1 | 0 |
| japan | wakayama prefecture | hovenia trichocarpa var. robusta | varietas | 2 | 0 |
| south korea | | hovenia dulcis | species | 2 | 0 |
| united states | | hovenia dulcis | species | 1 | 0 |