herniaria hirsuta, euphorbia maculata, lolium perenne, plantago major, polygonum aviculare, taraxacum minimum, trifolium repens, achillea collina, artemisia annua, eragrostis minor, erigeron canadensis, medicago lupulina, poa annua, setaria verticillata, setaria viridis, solanum nigrum, sonchus oleraceus