papaver rhoeas, ranunculus arvensis, avena fatua, centaurea cyanus, legousia speculum-veneris, viola arvensis, aphanes arvensis, artemisia vulgaris, lysimachia arvensis, arenaria serpyllifolia, buglossoides arvensis, cirsium arvense, convolvulus arvensis, delphinium consolida, euphorbia falcata, fallopia convolvulus, galium aparine, lysimachia foemina, polygonum aviculare, scandix pecten-veneris, sorghum halepense, stachys annua, chaenorhinum minus, oxalis stricta, reseda phyteuma