Homonym: Citrus × aurantiifolia (Lime)
Citrus × aurantiifolia, commonly known as the key lime, is a small, round citrus fruit that is typically green when ripe. It is native to Southeast Asia and is widely cultivated in tropical and subtropical regions. The fruit is known for its tart flavor and is often used in desserts, beverages, and marinades.
The key lime tree is a small shrub that can grow up to 13 feet tall. It has glossy, dark green leaves and produces fragrant white flowers. Key limes are a key ingredient in the famous key lime pie, a popular dessert in the Florida Keys.