text: chenopodium album, sinapis arvensis, centaurea cyanus, fallopia convolvulus, avena barbata, conringia orientalis, falcaria vulgaris, fumaria officinalis, papaver rhoeas, cirsium arvense, convolvulus arvensis, galium aparine, gypsophila vaccaria, hordeum murinum, lactuca virosa, picris hieracioides, ranunculus arvensis