text: triticum aestivum, anthemis cotula, apera spica-venti, elymus repens, stellaria media, vicia hirsuta, aphanes arvensis, centaurea cyanus, cirsium arvense, equisetum arvense, scleranthus annuus, vicia tetrasperma, capsella bursa-pastoris, convolvulus arvensis, fallopia convolvulus, viola arvensis