iberis amara, cirsium arvense, convolvulus arvensis, lolium rigidum, poa compressa, anthemis arvensis, bromus tectorum, centaurea scabiosa, lepidium campestre, lysimachia foemina, medicago sativa, muscari comosum, onobrychis supina, ononis spinosa, papaver rhoeas, phleum pratense, polygonum patulum, potentilla reptans, ranunculus arvensis, silene vulgaris, vicia lutea, vicia peregrina, vicia sativa, vicia tenuifolia