cirsium arvense, convolvulus arvensis, elymus repens, rubus caesius, arctium lappa, arrhenatherum elatius, artemisia vulgaris, cerastium arvense, cirsium vulgare, equisetum arvense, erigeron annuus, lolium perenne, poa angustifolia, poa compressa, tripleurospermum inodorum, urtica dioica, chelidonium majus