secale cereale, elymus repens, apera spica-venti, centaurea cyanus, polycnemum arvense, capsella bursa-pastoris, digitaria ischaemum, equisetum arvense, erigeron canadensis, herniaria hirsuta, polygonum aviculare, scleranthus annuus, setaria pumila, spergula arvensis, agrostemma githago, chenopodium album