text: chenopodium album, digitaria sanguinalis, setaria pumila, calystegia sepium, cynodon dactylon, datura stramonium, euphorbia helioscopia, galinsoga parviflora, mentha spicata, mercurialis annua, persicaria maculosa, rumex obtusifolius, senecio vulgaris, solanum nigrum, sorghum halepense, echinochloa crus-galli