Tropical avocados are a large, pear-shaped fruit with skin that remains green even when ripe. Because of this characteristic they are also known as green-skin avocados. The fruit is very heavy, weighing up to a pound or more, and can reach a foot in length. The creamy-yellow flesh is more fibrous than that of other avocados, with high water content and a mild flavor. These avocados also have a significantly lower fat content and 1/3 the calories of non-tropical varieties. Tropical avocados are also sometimes known as Florida avocados, and more than 50 varieties, including the reed, are grown in the state.