text: stellaria media, senecio vulgaris, allium cepa, allium sativum, avena fatua, capsella bursa-pastoris, cirsium arvense, euphorbia helioscopia, phleum pratense, poa annua, sonchus arvensis, sonchus oleraceus, veronica persica, lactuca serriola, trifolium dubium, tripleurospermum inodorum