Mexican Lime, also known as Key Lime, is a small, round citrus fruit with a thin, greenish-yellow skin. It is known for its tart flavor and aromatic zest, making it a popular ingredient in various dishes and beverages. The fruit is typically smaller than the more common Persian Lime and has a higher acidity level, which contributes to its distinctive taste. This lime variety thrives in warm climates, particularly in regions like Mexico and Florida. It is often used in desserts, such as Key Lime Pie, and cocktails, including the classic Margarita. The juice and zest of Mexican limes are also used to enhance the flavor of marinades and dressings.