digitaria sanguinalis, setaria pumila, cannabis sativa, capsella bursa-pastoris, chenopodium album, crepis setosa, eragrostis minor, erigeron canadensis, poa annua, rumex acetosella, setaria viridis, silene latifolia, solanum nigrum, trifolium arvense, crepis tectorum, cynodon dactylon, scabiosa ochroleuca, sedum sexangulare