text: amaranthus blitum, cirsium arvense, convolvulus arvensis, cynodon dactylon, digitaria sanguinalis, echinochloa crus-galli, galinsoga parviflora, lipandra polysperma, persicaria lapathifolia, polygonum aviculare, scrophularia nodosa, setaria pumila, solanum nigrum, sonchus arvensis, sorghum halepense