chenopodium album, equisetum arvense, centaurea cyanus, convolvulus arvensis, fallopia convolvulus, persicaria amphibia, stellaria media, capsella bursa-pastoris, cirsium arvense, scleranthus annuus, apera spica-venti, arenaria serpyllifolia, crepis tectorum, lysimachia arvensis, spergula arvensis, vicia sativa, viola arvensis