helminthotheca echioides, cirsium vulgare, cynodon dactylon, daucus carota, dittrichia viscosa, echium rosulatum, erigeron sumatrensis, symphyotrichum squamatum, trifolium repens, ammi majus, calystegia sepium, cyperus eragrostis, dactylis glomerata, holcus lanatus, lotus pedunculatus, melilotus albus, oenothera rosea, paspalum dilatatum, piptatherum miliaceum, rubus ulmifolius, rumex conglomeratus, verbena officinalis