centaurea cyanus, equisetum arvense, legousia speculum-veneris, aethusa cynapium, convolvulus arvensis, lysimachia arvensis, papaver rhoeas, ranunculus arvensis, medicago lupulina, polypogon viridis, achillea virescens, euphorbia stricta, setaria pumila, trifolium patens, trifolium pratense, vicia sativa