text: amaranthus retroflexus, mercurialis annua, chenopodium album, setaria verticillata, aethusa cynapium, amaranthus powellii, artemisia vulgaris, atriplex patula, chaenorhinum minus, convolvulus arvensis, glechoma hederacea, lathyrus tuberosus, lysimachia arvensis, medicago lupulina, myosotis arvensis, plantago uliginosa, setaria pumila, sherardia arvensis, sinapis arvensis, solanum nigrum, sonchus oleraceus, stellaria media, veronica persica, viola arvensis, galinsoga parviflora, panicum miliaceum, veronica polita