text: xanthium orientale, melilotus albus, artemisia santonicum, bromus tectorum, galium humifusum, leymus racemosus, salsola tragus, centaurea diffusa, lactuca saligna, lactuca tatarica, medicago falcata, melilotus officinalis, polygonum arenarium, secale sylvestre, plantago lanceolata, sisymbrium loeselii