erigeron canadensis, funaria hygrometrica, arenaria serpyllifolia, chenopodium album, echinochloa crus-galli, equisetum arvense, erigeron annuus, lipandra polysperma, medicago lupulina, persicaria minor, setaria pumila, tussilago farfara, capsella bursa-pastoris, cirsium arvense, galeopsis pubescens, persicaria lapathifolia, plantago major, tripleurospermum inodorum