viola arvensis, lamium purpureum, myosotis arvensis, thlaspi arvense, brassica napus, elymus repens, galium aparine, geranium pusillum, lamium amplexicaule, poa annua, stellaria media, tripleurospermum inodorum, veronica persica, veronica sublobata, achillea millefolium, arabidopsis thaliana, cirsium arvense, lapsana communis, lolium perenne