Kaffir lime

Citrus fruit native to tropical Southeast Asia

Citrus hystrix, called the kaffir lime, Thai lime or makrut lime, (US: , UK:) is a citrus fruit native to tropical Southeast Asia. Its fruit and leaves are used in Southeast Asian cuisine, and its essential oil is used in perfumery. Its rind and crushed leaves emit an intense citrus fragrance.

From Wikipedia, under CC BY-SA. More on occurri.