Carambola is a tropical fruit believed to have originated in Sri Lanka and the Moluccas. The fruit can be described as resembling a star or having five "fingers". This crisp, juicy fruit ranges in color from light green to yellow, and can be sour to mildly sweet in taste.
When you slice carambola, the individual slices form perfect stars, which is why it is often used to garnish.
3-4 inches long, greenish yellow with a waxy skin. Five deep ridges along the sides come up to form the points of the star when sliced.