| japan | gifu prefecture | alnus hirsuta var. sibirica | varietas | 1 | 0 |
| japan | hiroshima prefecture | alnus hirsuta var. sibirica | varietas | 2 | 0 |
| japan | niigata prefecture | alnus hirsuta var. sibirica | varietas | 1 | 0 |
| japan | yamagata prefecture | alnus hirsuta var. sibirica | varietas | 1 | 0 |
| united states | maryland | alnus hirsuta var. sibirica | varietas | 4 | 0 |