text: persicaria hydropiper, cerastium holosteoides, fallopia convolvulus, galeopsis bifida, galium aparine, gnaphalium uliginosum, myosotis arvensis, persicaria lapathifolia, poa annua, poa trivialis, sagina procumbens, sinapis arvensis, stellaria media, pohlia nutans, polygonum aviculare, viola arvensis, aphanes arvensis, rumex crispus, sonchus arvensis