text: echinochloa crus-galli, amaranthus retroflexus, lipandra polysperma, symphytum officinale, convolvulus arvensis, equisetum arvense, galinsoga quadriradiata, sonchus arvensis, veronica persica, setaria pumila, stachys palustris, erysimum cheiranthoides, euphorbia helioscopia, lysimachia arvensis, veronica opaca