viola arvensis, stellaria media, apera spica-venti, descurainia sophia, elymus repens, arabidopsis thaliana, capsella bursa-pastoris, chenopodium album, crepis tectorum, fallopia convolvulus, myosotis arvensis, setaria viridis, tripleurospermum inodorum, scleranthus annuus, silene latifolia, sisymbrium officinale, urtica dioica