rumex acetosella, agrostis stolonifera, digitaria ischaemum, ornithopus perpusillus, scleranthus annuus, setaria viridis, spergula arvensis, chenopodium album, equisetum arvense, fallopia convolvulus, viola arvensis, capsella bursa-pastoris, polygonum aviculare, tripleurospermum inodorum, anthemis arvensis, arnoseris minima, erigeron canadensis