aphanes arvensis, papaver rhoeas, apera spica-venti, arenaria serpyllifolia, centaurea cyanus, cirsium arvense, convolvulus arvensis, equisetum arvense, matricaria chamomilla, ranunculus arvensis, scandix pecten-veneris, tripleurospermum maritimum, veronica arvensis, vicia hirsuta, vicia sativa, capsella bursa-pastoris, draba verna, myosotis arvensis, polygonum aviculare, roemeria argemone, rumex acetosella, sagina apetala, stellaria media, vicia tetrasperma