eragrostis minor, carex spicata, chenopodium album, cirsium arvense, convolvulus arvensis, cynodon dactylon, erigeron canadensis, lolium perenne, medicago lupulina, plantago lanceolata, polygonum aviculare, rorippa sylvestris, setaria verticillata, setaria viridis, silene latifolia, silene vulgaris