triticum aestivum, galium verrucosum, scandix pecten-veneris, fumaria officinalis, veronica cymbalaria, calendula arvensis, convolvulus arvensis, euphorbia helioscopia, fumaria agraria, lolium rigidum, papaver dubium, rumex pulcher, sherardia arvensis, silene vulgaris, smyrnium olusatrum, sonchus oleraceus, veronica arvensis, vicia lutea, scolymus hispanicus