chenopodium album, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, elymus repens, lipandra polysperma, lolium pratense, lysimachia arvensis, mentha arvensis, saponaria officinalis, sonchus asper, thlaspi arvense, veronica persica, vicia villosa, viola arvensis, trifolium campestre, veronica serpyllifolia