Rambutan are closely related to the lychee, the tropical Rambutan, pronounced ram-BYU-tn, varies in type and quality. The fruit may be greenish-yellow, orange or crimson, are oval-shaped and usually 1 - 2 inches long. The soft, flexible exterior shell is covered in stiff, hair-like bristles. While the exterior makes it seem larger than the lychee, the inner fruit is actually smaller. Rambutan flesh is juicy, milky- white, translucent in color, with a grape-like, gelatinous texture surrounding a central seed with and almond-like taste. The flavor of a Rambutan is more acidic than the lychee, sweet and very aromatic.