centaurea cyanus, chenopodium album, convolvulus arvensis, vicia hirsuta, vicia sativa, apera spica-venti, crepis tectorum, elymus repens, equisetum arvense, fallopia convolvulus, roemeria argemone, scleranthus annuus, spergula arvensis, trifolium arvense, tripleurospermum inodorum, veronica arvensis, viola arvensis, achillea millefolium, polygonum aviculare, rhinanthus serotinus, rumex acetosella