This work reports on the green synthesis of Au/Pd bimetallic nanoparticles by using Euphorbia condylocarpa M. bieb root extract and their application as separable catalysts for ligand-free Suzuki and Heck coupling reactions in water. The catalyst was characterized using powder XRD, SEM and EDS. This method has the advantages of high yields, simple methodology and easy work up. Catalytic efficiency remains unaltered even after several repeated cycles.