text: cirsium arvense, amaranthus retroflexus, ambrosia artemisiifolia, anthemis arvensis, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, datura stramonium, elymus repens, lolium perenne, medicago sativa, poa pratensis, polygonum aviculare, rorippa prolifera, rumex obtusifolius, setaria viridis, sinapis arvensis, solanum nigrum, trifolium pratense, xanthium strumarium, fallopia convolvulus, plantago lanceolata, plantago major, verbena officinalis, erigeron annuus, oxalis stricta, artemisia vulgaris, asclepias syriaca, persicaria lapathifolia