arabidopsis thaliana, centaurea cyanus, digitaria ischaemum, elymus repens, equisetum arvense, fallopia convolvulus, ornithopus perpusillus, rumex acetosella, scleranthus annuus, setaria viridis, spergula arvensis, stellaria media, vicia sativa, viola arvensis, galinsoga parviflora, lamium purpureum, persicaria hydropiper