text: aristolochia clematitis, amaranthus powellii, amaranthus retroflexus, atriplex tatarica, bromus sterilis, bromus tectorum, carduus acanthoides, carduus crispus, cirsium arvense, convolvulus arvensis, daucus carota, descurainia sophia, echinochloa crus-galli, elymus repens, erigeron canadensis, lactuca serriola, lepidium draba, linaria vulgaris, lolium perenne, polygonum aviculare, rumex obtusifolius, setaria viridis, solanum nigrum, sonchus arvensis, stellaria media, tanacetum vulgare, veronica polita