sentence: it is also reportedly naturalized in austria , portugal , spain , azores , canary islands , cape verde , madeira , most of tropical africa , ascension island , st. helena , madagascar , china , japan , taiwan , the bonin islands , india , assam , nepal , sri lanka , the andaman islands , cambodia , laos , thailand , vietnam , burma , java , malaysia , the philippines , christmas island , the bismarck archipelago , norfolk island , new south wales , queensland , fiji , tonga , vanuatu , kiribati , the cook islands , the society islands , the caroline islands and hawaii .