carduus hamulosus, medicago lupulina, artemisia absinthium, berteroa incana, cirsium arvense, cirsium vulgare, convolvulus arvensis, cynodon dactylon, cynoglossum officinale, daucus carota, echium vulgare, erigeron canadensis, lotus corniculatus, plantago media, reseda lutea, sonchus arvensis, trifolium pratense, tripleurospermum inodorum