text: senecio vulgaris, mercurialis annua, convolvulus arvensis, veronica persica, amaranthus retroflexus, calystegia sepium, chenopodium album, cynodon dactylon, echinochloa crus-galli, elymus repens, lamium purpureum, persicaria maculosa, polygonum aviculare, sonchus oleraceus, stellaria media