melilotus officinalis, ceratodon purpureus, echium vulgare, pilosella officinarum, achillea millefolium, artemisia vulgaris, centaurea diffusa, lactuca serriola, lepidium ruderale, linaria vulgaris, lolium perenne, matricaria chamomilla, medicago falcata, melilotus albus, oenothera biennis, polygonum aviculare, potentilla erecta, sinapis arvensis, streblotrichum convolutum, tussilago farfara