text: chenopodium album, veronica persica, euphorbia helioscopia, fallopia convolvulus, galinsoga parviflora, persicaria maculosa, sinapis arvensis, sonchus arvensis, sonchus oleraceus, stellaria media, argentina anserina, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, convolvulus arvensis, equisetum arvense, fumaria officinalis, geranium pusillum, lysimachia arvensis, senecio vulgaris, silene noctiflora, sisymbrium officinale, viola arvensis