Although the origin of lime isn’t very clear, it is considered to have originated in the Indonesian archipelago or the Asian mainland. It is most likely that Arabian traders took limes and lemons from India to the eastern Mediterranean countries and Africa. 

The fruit of the lime tree is small, ovular, or spherical, small, and more often than not green in color. It is a citric fruit and is very sour in taste, even when it ripens.

Image by Jason Leung