centaurea cyanus, papaver rhoeas, veronica persica, viola arvensis, anthemis arvensis, lolium perenne, capsella bursa-pastoris, tripleurospermum inodorum, agrostemma githago, bromus arvensis, convolvulus arvensis, mentha spicata, stellaria media, polygonum aviculare, artemisia vulgaris, galium aparine, lamium amplexicaule, trifolium arvense