allium vineale, secale cereale, scleranthus annuus, apera spica-venti, centaurea cyanus, chenopodium album, draba verna, elymus repens, equisetum arvense, erigeron canadensis, fallopia convolvulus, gagea pratensis, raphanus raphanistrum, roemeria argemone, rumex acetosella, stellaria media, veronica hederifolia, veronica triphyllos, viola arvensis