text: chenopodium album, arabidopsis thaliana, capsella bursa-pastoris, fallopia convolvulus, juncus bufonius, lapsana communis, mentha arvensis, persicaria hydropiper, plantago uliginosa, poa annua, spergula arvensis, stachys palustris, stellaria media, tripleurospermum inodorum, veronica arvensis, veronica persica, vicia hirsuta, viola arvensis, centaurea cyanus, euphorbia helioscopia, myosotis arvensis, persicaria maculosa, rumex crispus, sonchus arvensis, sonchus asper, sonchus oleraceus, trifolium pratense