text: zea mays, cucurbita pepo, galinsoga parviflora, agrostis gigantea, chenopodium album, convolvulus arvensis, digitaria ischaemum, lipandra polysperma, ranunculus repens, setaria pumila, aphanes arvensis, arenaria serpyllifolia, capsella bursa-pastoris, carex hirta, cirsium arvense, echinochloa crus-galli, erigeron canadensis, fallopia convolvulus, lamium purpureum, legousia speculum-veneris, mentha arvensis, persicaria lapathifolia, rorippa sylvestris, rumex acetosella, setaria viridis, sonchus arvensis, stellaria media, veronica persica, veronica polita, vicia sativa