The one thing people are sure of is that the history of finger limes is that their origin is from Northern New South Wales and Queensland. This is known for the unusual citrus, also known as Citrus australasica, which is native. For thousands of years, indigenous Australian communities, including the Bundjalung, Gumbainggir, Wakka Wakka, and Barunggam nations, have used the finger lime as bush food. They have eaten the fruit raw, added its acidic pearls to seafood, and used parts of the plant as medicine.