text: apera spica-venti, centaurea cyanus, anthemis arvensis, capsella bursa-pastoris, galeopsis tetrahit, poa annua, polygonum aviculare, spergula arvensis, fallopia convolvulus, persicaria amphibia, plantago major, raphanus raphanistrum, rumex acetosella, scleranthus annuus, senecio vulgaris, stellaria media, trifolium repens, tripleurospermum maritimum, veronica arvensis, veronica hederifolia, vicia hirsuta, vicia sativa, viola arvensis, viola tricolor