lactuca serriola, erigeron canadensis, achillea millefolium, cirsium arvense, oxalis stricta, tripleurospermum inodorum, artemisia vulgaris, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, descurainia sophia, papaver rhoeas, picris hieracioides, plantago major, salsola tragus, sambucus ebulus, verbena officinalis