secale cereale, agrostis gigantea, apera spica-venti, arnoseris minima, scleranthus annuus, teesdalia nudicaulis, viola tricolor, anthemis arvensis, centaurea cyanus, chenopodium album, digitaria ischaemum, equisetum arvense, erigeron canadensis, lupinus luteus, raphanus raphanistrum, rhinanthus serotinus, rumex acetosella, veronica dillenii, viola arvensis