hypochaeris glabra, anthemis arvensis, raphanus raphanistrum, rumex acetosella, spergula arvensis, centaurea cyanus, crepis tectorum, fallopia convolvulus, poa annua, scleranthus annuus, veronica hederifolia, viola arvensis, capsella bursa-pastoris, cerastium semidecandrum, chenopodium album, roemeria argemone