text: chenopodium album, echinochloa crus-galli, galinsoga parviflora, persicaria maculosa, setaria pumila, stellaria media, amaranthus graecizans, amaranthus retroflexus, bidens tripartita, capsella bursa-pastoris, equisetum arvense, raphanus sativus, verbena officinalis, xanthium strumarium