Mandarins have their origin in China, native to the countries of South East Asia and the Philippines. The fruit spread through Asia and eventually in the 19th century to the Western world.
Limes were first cultivated more than 2,000 years BCE in tropical and subtropical regions of South East Asia and northern India, spreading west at the time of Alexander the Great.
Thought to be a hybrid of the citron and pomelo, the lemon tree has its origins in North East Asia.
Clementines were once referred to as the crown jewels of the mandarin family.