The leaves are a little strange, two leaves per leaf stem and small warty fruit (often much more warty than the one in the picture). The fruits are highly aromatic but a bit dry so not good for squeezing.

Kaffir lime is an essential ingredient in Thai cooking with no satisfactory substitute. It's rather inconveneient to get though, if you don't have your own tree. The leaves are used in endless dishes while the fruit rinds are used in curry pastes. Ya just can't do Thai without 'em.

[image|http://www.clovegarden.com/ingred/img/ci_kafir03d.jpg||||]