The Durian is the fruit of several tree species belonging to the genus Durio. There are 30 recognized Durio species, at least nine of which produce edible fruit. There are over 100 named varieties in Indonesia, 300 in Thailand and 100 in Malaysia. Local Durian varieties are officially registered with the government of each country.
Over the centuries, numerous Durian cultivars, propagated by clones, have arisen in Southeast Asia. A Durian cultivar is essentially a specific variety of Durian that has been deliberately selected for desirable characteristics such as fruit shape, size, smell, colour, texture, taste and tree characteristics. A durian clone is a descendant of a selected Durian cultivar, and is produced by vegetative reproduction, usually bud-grafting or inarching. Most cultivars have a common name and a code number starting with “D”.
Some key common United Tropical Fruit varieties in Malaysia and Thailand are indicated below.