hordeum distichon, matricaria discoidea, arabidopsis thaliana, stellaria media, capsella bursa-pastoris, elymus repens, lapsana communis, myosotis arvensis, thlaspi arvense, tripleurospermum inodorum, veronica arvensis, viola arvensis, anthemis arvensis, cerastium holosteoides, cirsium arvense, erysimum cheiranthoides, lamium purpureum, poa pratensis, vicia sativa