chenopodium album, amaranthus blitoides, carduus tenuiflorus, erigeron bonariensis, hordeum murinum, stellaria media, poa annua, amaranthus deflexus, amaranthus muricatus, avena sterilis, bromus diandrus, ecballium elaterium, lolium rigidum, rostraria cristata, sisymbrium irio, symphyotrichum squamatum, xanthium spinosum