text: apera spica-venti, convolvulus arvensis, draba verna, elymus repens, equisetum arvense, myosotis arvensis, myosotis sicula, secale cereale, agrostemma githago, arabidopsis thaliana, bromus secalinus, cirsium arvense, vicia hirsuta, vicia sativa, achillea millefolium, artemisia vulgaris, centaurea cyanus, chenopodium album, delphinium consolida, fallopia convolvulus, mentha arvensis, polygonum aviculare, raphanus raphanistrum, rumex acetosella, scleranthus annuus, silene latifolia, spergula arvensis, veronica arvensis, veronica dillenii, viola arvensis