text: apera spica-venti, scleranthus annuus, centaurea cyanus, fallopia convolvulus, rumex acetosella, erodium cicutarium, polygonum aviculare, spergula arvensis, viola arvensis, achillea millefolium, arabidopsis thaliana, bromus hordeaceus, capsella bursa-pastoris, chenopodium album, elymus repens, holcus lanatus, poa annua, raphanus raphanistrum, senecio vulgaris, stellaria media, veronica arvensis, vicia sativa, viola tricolor