ceratodon purpureus, scleranthus annuus, apera spica-venti, centaurea cyanus, fallopia convolvulus, polygonum aviculare, rumex acetosella, achillea millefolium, anthemis arvensis, arnoseris minima, bromus secalinus, elymus repens, festuca rubra, geranium rotundifolium, myosotis arvensis, ornithopus sativus, phleum pratense, viola arvensis