lolium perenne, artemisia vulgaris, setaria pumila, trifolium repens, agrostis stolonifera, echinochloa crus-galli, erigeron canadensis, galinsoga quadriradiata, poa annua, polygonum aviculare, scorzoneroides autumnalis, tripleurospermum inodorum, viola arvensis, achillea millefolium, matricaria discoidea, plantago lanceolata, plantago major