chenopodium album, eragrostis minor, setaria viridis, amaranthus retroflexus, capsella bursa-pastoris, crepis tectorum, digitaria ischaemum, persicaria lapathifolia, polygonum aviculare, setaria pumila, artemisia campestris, atriplex calotheca, berteroa incana, convolvulus arvensis, erigeron canadensis, lactuca serriola, solanum nigrum, artemisia absinthium, descurainia sophia