brassica napus, anthemis arvensis, capsella bursa-pastoris, fallopia convolvulus, galeopsis tetrahit, matricaria chamomilla, scleranthus annuus, apera spica-venti, arenaria serpyllifolia, centaurea cyanus, chenopodium album, persicaria maculosa, polygonum aviculare, spergula arvensis, thlaspi arvense, viola arvensis