Reference book of fruit trees The free application "Reference book of fruit trees" is very friendly, it has a beautiful and simple interface. The best choice for a pocket dictionary that is always at hand. From which you can learn a lot of new and interesting things, for example, that: Salak Salak is a species of palm tree native to Java and Sumatra in Indonesia. It is cultivated in other regions of Indonesia as a food crop, and reportedly naturalized in Bali, Lombok, Timor, Maluku, and Sulaw