onopordum acanthium, verbascum dentifolium, bromus diandrus, carduus carpetanus, chondrilla juncea, cirsium arvense, cirsium vulgare, echium vulgare, marrubium vulgare, sisymbrium officinale, arctium minus, artemisia vulgaris, ballota nigra, bromus sterilis, centaurea cyanus, cladanthus mixtus, euphorbia oxyphylla, holcus lanatus, hordeum murinum, jacobaea vulgaris, lactuca serriola, lapsana communis, malva sylvestris, papaver dubium, pteridium aquilinum, sonchus asper, sonchus oleraceus, urtica dioica