text: echinochloa crus-galli, amaranthus blitum, convolvulus arvensis, galinsoga parviflora, galinsoga quadriradiata, argentina anserina, capsella bursa-pastoris, euphorbia helioscopia, stellaria media, veronica persica, veronica polita, anethum graveolens, brassica oleracea, cirsium arvense, plantago major, sonchus arvensis, sonchus asper