ambrosia artemisiifolia, medicago lupulina, elymus repens, picris hieracioides, trifolium pratense, artemisia vulgaris, daucus carota, erigeron canadensis, lactuca serriola, poa compressa, artemisia absinthium, hypericum perforatum, poa trivialis, tripleurospermum inodorum, bromus hordeaceus, echium vulgare, plantago major, silene latifolia