centaurea cyanus, chenopodium album, arenaria serpyllifolia, capsella bursa-pastoris, fallopia convolvulus, lolium perenne, polygonum aviculare, veronica hederifolia, viola arvensis, anthemis arvensis, buglossoides arvensis, descurainia sophia, equisetum arvense, galium spurium, rhinanthus alectorolophus, roemeria argemone, trifolium arvense, trifolium repens, achillea millefolium, lapsana communis