polygonum aviculare, erigeron canadensis, capsella bursa-pastoris, galinsoga parviflora, plantago major, poa annua, atriplex patula, bassia scoparia, chenopodium album, digitaria sanguinalis, echinochloa crus-galli, galinsoga quadriradiata, lipandra polysperma, lolium perenne, matricaria discoidea