text: chenopodium album, elymus repens, digitaria ischaemum, echinochloa crus-galli, equisetum arvense, fallopia convolvulus, ornithopus perpusillus, rumex acetosella, setaria viridis, spergula arvensis, viola arvensis, capsella bursa-pastoris, erigeron canadensis, persicaria lapathifolia, stellaria media, tripleurospermum inodorum