viola arvensis, arenaria serpyllifolia, bromus hordeaceus, centaurea cyanus, scleranthus annuus, veronica arvensis, arabidopsis thaliana, spergularia rubra, capsella bursa-pastoris, cerastium holosteoides, erodium cicutarium, myosotis arvensis, tripleurospermum inodorum, crepis tectorum, equisetum arvense, matricaria discoidea, silene latifolia, stellaria media