The curry tree (murraya koenigii) is a small tree, growing to 20 feet.  The aromatic leaves are pinnate, with 11-21 leaflets. The plant produces small white flowers which can self-pollinate to produce small shiny-black berries containing a single, large viable seed. 
Cambodians dry roast fresh curry leaves and put them in soups for their aroma and flavor.  Other uses of curry leaves include topical treatments for skin & hair, herbal tea and flavored cooking oils.