portulaca oleracea, polygonum aviculare, amaranthus retroflexus, ambrosia artemisiifolia, berteroa incana, capsella bursa-pastoris, cynodon dactylon, echinochloa crus-galli, geranium pusillum, lotus corniculatus, medicago lupulina, plantago lanceolata, plantago media, poa annua, setaria viridis, xanthium spinosum