Laraha (Citrus aurantium currassuviencis) is a citrus tree that grows on the island of Curaçao, and the fruits of this tree. A relative of the orange, the fruit of the Laraha is even more bitter than their other citrus cousins and generally considered inedible.
History and use 
Valencia orange trees transplanted on Curaçao from Spain in 1527 did not take the arid climate and soil of the Southern Caribbean island. As the trees were then abandoned, the fruit evolved from a bright orange color and sweet taste into a green and inedible bitter produce. The dried peels of the Laraha, however, were discovered to be quite pleasantly fragranced, and experimentation with the extracts of these peels led to the creation of Curaçao liqueur.