text: echinochloa crus-galli, mercurialis annua, sonchus oleraceus, stellaria media, veronica persica, arabidopsis thaliana, atriplex patula, capsella bursa-pastoris, cerastium glomeratum, chenopodium album, cirsium arvense, convolvulus arvensis, gnaphalium uliginosum, lipandra polysperma, lysimachia arvensis, myosotis arvensis, persicaria lapathifolia, plantago major, ranunculus repens, raphanus raphanistrum, rumex crispus, senecio vulgaris, sinapis arvensis, sonchus asper, vicia hirsuta, euphorbia helioscopia, euphorbia peplus, matricaria chamomilla