Glossy, yellow and translucent, unique star fruit's thin waxy skin has five deep lateral ridges that form charming star shapes when sliced. Easy to recognize, it is about two to five inches in length. Pleasantly citric, the complex taste of this attractive fruit has been described as combining plum, pineapple, apple, lemon and grape when it ripens to yellow. Its crisp texture offers a sweet-tart juice. Narrow ribbed fruits generally have a more tart flavor; thick fleshy ribs are usually sweet.