text: cynodon dactylon, portulaca oleracea, trifolium repens, amaranthus retroflexus, chenopodium album, convolvulus arvensis, echinochloa crus-galli, lolium perenne, lysimachia arvensis, lysimachia foemina, malva sylvestris, medicago lupulina, persicaria lapathifolia, setaria viridis, solanum nigrum, heliotropium europaeum, rumex crispus