text: chenopodium album, echinochloa crus-galli, elymus repens, galeopsis tetrahit, lamium purpureum, sonchus arvensis, equisetum arvense, heracleum sphondylium, solanum nigrum, stellaria media, fallopia convolvulus, lamium amplexicaule, matricaria discoidea, persicaria maculosa, polygonum aviculare, viola arvensis, rumex obtusifolius, senecio vulgaris