scleranthus annuus, trifolium arvense, agrostemma githago, anthemis cotula, bunium bulbocastanum, capsella bursa-pastoris, centaurea cyanus, fallopia convolvulus, galium aparine, papaver rhoeas, polygonum aviculare, roemeria argemone, scandix pecten-veneris, senecio vulgaris, vicia sativa, viola tricolor