text: chenopodium album, spergula arvensis, arabidopsis thaliana, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, elymus repens, equisetum arvense, fallopia convolvulus, gnaphalium uliginosum, lycopsis arvensis, lysimachia arvensis, plantago uliginosa, raphanus raphanistrum, setaria viridis, sinapis arvensis, sonchus arvensis, stellaria media, thlaspi arvense, tripleurospermum inodorum, tussilago farfara, veronica persica, artemisia vulgaris, convolvulus arvensis, jacobaea vulgaris, myosotis arvensis, veronica arvensis