stellaria media, arabidopsis thaliana, chenopodium album, gnaphalium uliginosum, atriplex patula, capsella bursa-pastoris, erodium cicutarium, fallopia convolvulus, matricaria chamomilla, myosotis arvensis, plantago uliginosa, spergula arvensis, apera spica-venti, cirsium arvense, elymus repens, persicaria maculosa, polygonum aviculare, sonchus asper