corispermum intermedium, corynephorus canescens, rumex acetosella, trifolium arvense, apera spica-venti, carex arenaria, erigeron canadensis, lepidium densiflorum, achillea millefolium, artemisia vulgaris, capsella bursa-pastoris, chenopodium album, fallopia convolvulus, hypochaeris radicata, viola arvensis, arenaria serpyllifolia, lolium perenne, sisymbrium altissimum