| Plant tribe | Plant genus | Plant species | Part of plant | Region | Literature | Source |
| Carduoideae | Centaurea | sp. | Flowerhead | Merz (1994) | Citation for foreign breed | |
| Anthemideae | Achillea | millefolium | Flowerhead | Merz (1994) | Citation for foreign breed | |
| Cichorieae | Lactuca | sativa | Flowerhead | Merz (1994) | Citation for foreign breed | |
| serriola | Flowerhead | Switzerland | Merz (1994) | Breeding - Switzerland | ||
| Leontodon | autumnalis | Flowerhead | Merz (1994) | Citation for foreign breed | ||
| Picris | hieracioides | Flowerhead | Merz (1994) | Citation for foreign breed | ||
| asper | Flowerhead | Merz (1994) | Citation for foreign breed | |||
| oleraceus | Flowerhead | Merz (1994) | Citation for foreign breed | |||
| Sonchus | arvensis | Flowerhead | Merz (1994) | Citation for foreign breed |