cirsium vulgare, cirsium arvense, amaranthus retroflexus, atriplex tatarica, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, crepis setosa, cynoglossum officinale, echinochloa crus-galli, echium vulgare, erigeron canadensis, inula britannica, lepidium draba, oxybasis glauca, potentilla reptans, reseda lutea, sambucus ebulus, solanum nigrum, trifolium fragiferum, urtica dioica, verbena officinalis, xanthium spinosum