| germany | | lactuca sativa var. capitata | varietas | 2 | 0 |
| greece | | lactuca sativa var. capitata | varietas | 1 | 0 |
| japan | fukuoka prefecture | lactuca sativa var. capitata | varietas | 1 | 0 |
| netherlands | | lactuca sativa var. capitata | varietas | 1 | 0 |
| norway | more og romsdal county | lactuca sativa var. capitata | varietas | 0 | 1 |
| turkey | ankara province | lactuca sativa var. capitata | varietas | 0 | 2 |
| united states | | lactuca sativa var. capitata | varietas | 1 | 0 |
| united states | colorado | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | delaware | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | iowa | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | nebraska | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | new jersey | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | new york | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | pennsylvania | lactuca sativa var. capitata | varietas | 0 | 1 |
| united states | texas | lactuca sativa var. capitata | varietas | 0 | 1 |