chenopodium album, dysphania ambrosioides, erigeron bonariensis, cynodon dactylon, amaranthus muricatus, amaranthus retroflexus, convolvulus arvensis, heliotropium europaeum, solanum nigrum, chenopodiastrum murale, chenopodium opulifolium, hypericum triquetrifolium, piptatherum miliaceum, sonchus oleraceus, symphyotrichum squamatum