rumex crispus, elymus repens, carduus acanthoides, cirsium arvense, sisymbrium loeselii, arctium lappa, artemisia vulgaris, avena fatua, cichorium intybus, crepis biennis, erigeron canadensis, lactuca serriola, lolium perenne, melilotus officinalis, silene latifolia, sonchus oleraceus, tripleurospermum inodorum, tussilago farfara