text: poa annua, apera spica-venti, arabidopsis thaliana, poa trivialis, scleranthus annuus, spergula arvensis, stellaria media, vicia hirsuta, viola arvensis, elymus repens, fallopia convolvulus, galeopsis tetrahit, equisetum arvense, gnaphalium uliginosum, odontites vulgaris, persicaria hydropiper, polygonum aviculare, rumex acetosella, vicia sativa, centaurea cyanus, lysimachia arvensis, raphanus raphanistrum, rumex crispus, sagina procumbens, tripleurospermum inodorum, anthemis arvensis, myosotis stricta, persicaria lapathifolia, veronica sublobata