Kaffi r lime is a member of the genus Citrus, family Rutaceae and order Sapindales.
This genus comprises about 16 species of evergreen trees and shrubs that have
perfumed fl owers and characteristic aromatic fruits (Bown, 2002). The scientifi c
name of kaffi r lime is Citrus hystrix DC. A few other common names are ‘kieffer
lime’, ‘leech lime’ and ‘makrut’ (Thai).