Elaeocarpus ganitrus roxb is the scientific name for the famous rudraksha tree. The rudraksha trees have many sub species which look nearly similar to rudraksha tree. But they have difference in their color, type, property etc. These sub species are distributed in different parts of world. It may be possible that - Hindu people have made this trees available in different parts of the world. But because of the environmental conditions the trees have come with different property and feature.
Please click on the link to read the full details about Tree of rudraksha. There are medicinal powers of rudraksha tree parts.