viola arvensis, agrostemma githago, arenaria serpyllifolia, convolvulus arvensis, fallopia convolvulus, galeopsis tetrahit, galium spurium, medicago lupulina, trifolium repens, anthemis arvensis, capsella bursa-pastoris, centaurea cyanus, euphorbia cyparissias, lapsana communis, polygonum aviculare, thlaspi arvense, vicia sepium