echinochloa crus-galli, bidens tripartita, persicaria hydropiper, capsella bursa-pastoris, chenopodium album, lipandra polysperma, mentha longifolia, persicaria lapathifolia, plantago major, poa palustris, poa trivialis, potentilla incana, ranunculus repens, rorippa sylvestris, sonchus oleraceus, stellaria aquatica, stellaria media, tripleurospermum inodorum, aegopodium podagraria