text: euphorbia helioscopia, capsella bursa-pastoris, chenopodium album, cirsium arvense, elymus repens, galium aparine, lamium purpureum, lipandra polysperma, poa annua, poa trivialis, polypogon viridis, ranunculus repens, sonchus arvensis, stellaria media, trifolium repens, veronica persica, viola arvensis, daucus carota, lysimachia vulgaris, papaver rhoeas, persicaria maculosa, plantago major, sonchus asper, trifolium pratense