The curry tree (Murraya koenigii or Bergera koenigii) is a tropical to sub-tropical tree in the family Rutaceae (the rue or citrus family) and is closely related to grapefruit, kumquat, lemon, lime, mandarin and orange. The Curry tree is native to India and Sri Lanka.
Don’t confuse Curry Leaves with curry powder, of which there are hundreds of variations. Curry powders are made with many different combinations of spices and Curry Leaves may be an ingredient in some curry powder versions. Don’t expect that adding Curry Leaves to a dish by itself will provide enough curry flavor.
In English usage, curry has a wide meaning encompassing both spicy foods of various kinds and also Indian spice mixtures ("curry powder"). The word curry is of Indian origin, in Tamil, the most predominate language in South India and Sri Lanka, the word “kari” translates to "soup" or "sauce". The Tamil name for Curry Leaves is kariveppilai which contains “ilai” which means "leaf".