text: hordeum distichon, anthemis arvensis, aphanes arvensis, arenaria serpyllifolia, legousia speculum-veneris, scleranthus annuus, apera spica-venti, arabidopsis thaliana, convolvulus arvensis, valerianella locusta, agrostemma githago, centaurea cyanus, cirsium arvense, mentha arvensis, myosotis arvensis, papaver rhoeas, ranunculus repens, rorippa sylvestris, rumex acetosella, vicia hirsuta, vicia villosa, viola arvensis