viola arvensis, descurainia sophia, rhinanthus alectorolophus, thlaspi arvense, arenaria serpyllifolia, buglossoides arvensis, bunium bulbocastanum, chenopodium album, cirsium arvense, convolvulus arvensis, equisetum arvense, lapsana communis, lysimachia vulgaris, arabidopsis thaliana, capsella bursa-pastoris, centaurea cyanus, vicia cracca