centaurea cyanus, anthemis arvensis, convolvulus arvensis, lolium perenne, scleranthus annuus, tripleurospermum inodorum, viola arvensis, apera spica-venti, arabidopsis thaliana, cerastium glomeratum, myosotis stricta, aphanes arvensis, bromus japonicus, capsella bursa-pastoris, cerastium pumilum, draba verna, elymus repens, galium aparine, papaver rhoeas, ranunculus sardous, rumex acetosella, stellaria graminea, stellaria media, trifolium repens, veronica arvensis