When it comes to fruits, citrus is often associated with oranges, lemons, and limes. But there are some variations on citrus. For example, pomelos are citrus fruits, but are not actually oranges. — They are actually a relative of lychee and longan. They have a thick bitter membrane surrounding the pulp, but their juicy flesh is bright pink. They also contain few seeds, making them great for eating raw or making into juice.