Citrus aurantifolia

Citrus aurantifolia, commonly known as the Key lime, is a citrus species native to Southeast Asia. It is best known for its small, round fruit, which is both tart and aromatic. The Key lime is smaller, seedier, has a higher acidity, a stronger aroma, and a thinner rind than that of the Persian lime (Citrus x latifolia).

Taxonomy

The Citrus aurantifolia is a member of the Rutaceae family, which includes other citrus fruits such as lemons, oranges, and grapefruits. The species is further classified in the Citrus genus. The scientific name Citrus aurantifolia is derived from the Latin words 'citrus', meaning 'citron', and 'aurantifolia', meaning 'golden-leaved'.

Description

The Citrus aurantifolia tree typically grows between 6.6 to 13 feet (2 to 4 meters) in height. The leaves are ovate and the citrus tree's wood is hard and compact. The tree's flowers are white and give off a strong, pleasant fragrance. The fruit of the Citrus aurantifolia is round, green in color, and measures about 1.2 to 2 inches (3 to 5 cm) in diameter.

Cultivation

Citrus aurantifolia is cultivated in tropical and subtropical regions around the world. The tree thrives in well-drained, sandy soils and requires full sun exposure. It is highly sensitive to cold and can be damaged by temperatures below 32°F (0°C).

Uses

The fruit of the Citrus aurantifolia is valued for its unique flavor and aroma, and is used in a variety of culinary applications. It is a key ingredient in Key lime pie, a popular dessert in the United States, particularly in the state of Florida. The juice of the fruit is also used in beverages, such as the margarita, and in marinades for fish and other meats.

Health Benefits

Citrus aurantifolia is rich in vitamin C and other antioxidants, which can help boost the immune system and protect the body against free radicals. The fruit's high acidity also makes it a natural preservative.

See Also

• Citrus
• Lime (fruit)
• Key lime pie
• Vitamin C