puccinellia distans, plantago major, amaranthus retroflexus, capsella bursa-pastoris, dactylis glomerata, galinsoga parviflora, tripleurospermum inodorum, erysimum cheiranthoides, poa annua, matricaria chamomilla, polygonum aviculare, rorippa sylvestris, sisymbrium loeselii, stellaria media, urtica urens, matricaria discoidea, carex hirta, echinochloa crus-galli