text: amaranthus blitum, amaranthus retroflexus, chenopodium album, cynodon dactylon, digitaria sanguinalis, portulaca oleracea, cerastium glomeratum, diplotaxis tenuifolia, echinochloa crus-galli, heliotropium europaeum, papaver dubium, papaver rhoeas, polygonum aviculare, setaria viridis, vicia sativa, xanthium orientale