| brazil | | hamamelis sp. rp-2014 | species | 39 | 0 |
| canada | ontario | hamamelis virginiana | species | 5 | 0 |
| canada | quebec | hamamelis virginiana | species | 2 | 0 |
| china | | hamamelis mollis | species | 96 | 0 |
| china | beijing | hamamelis mollis | species | 19 | 0 |
| japan | | hamamelis japonica f. obtusata | forma | 1 | 0 |
| japan | aichi prefecture | hamamelis japonica | species | 12 | 0 |
| japan | akita prefecture | hamamelis japonica f. obtusata | forma | 4 | 0 |
| japan | aomori prefecture | hamamelis japonica | species | 3 | 0 |
| japan | fukushima prefecture | hamamelis japonica f. obtusata | forma | 1 | 0 |
| japan | gifu prefecture | hamamelis japonica | species | 6 | 0 |
| japan | gifu prefecture | hamamelis japonica f. obtusata | forma | 2 | 0 |
| japan | iwate prefecture | hamamelis japonica f. obtusata | forma | 3 | 0 |
| japan | niigata prefecture | hamamelis japonica f. obtusata | forma | 2 | 0 |
| japan | shiga prefecture | hamamelis japonica f. obtusata | forma | 4 | 0 |
| japan | shizuoka prefecture | hamamelis japonica | species | 2 | 0 |
| japan | yamagata prefecture | hamamelis japonica f. obtusata | forma | 1 | 0 |
| mexico | | hamamelis mexicana | species | 1 | 0 |
| united states | arkansas | hamamelis vernalis | species | 1 | 0 |
| united states | florida | hamamelis virginiana | species | 1 | 0 |
| united states | georgia | hamamelis virginiana | species | 1 | 0 |
| united states | new jersey | hamamelis x intermedia | species | 6 | 0 |
| united states | new york | hamamelis x intermedia | species | 1 | 0 |
| united states | virginia | hamamelis virginiana | species | 1 | 0 |
| united states | wisconsin | hamamelis virginiana | species | 6 | 0 |