| Plant tribe | Plant genus | Plant species | Part of plant | Region | Literature | Source |
| Carduoideae | Arctium | lappa | Flowerhead | England | Merz (1994) | Citation for foreign breed |
| minus | Flowerhead | Switzerland | Merz (1994) | Breeding - Switzerland | ||
| nemorosum | Flowerhead | Switzerland | Merz (1994) | Breeding - Switzerland | ||
| tomentosum | Flowerhead | Switzerland | Merz (1994) | Breeding - Switzerland |