Citrus depressa

Citrus depressa, also known as Shekwasha, Hirami lemon, Taiwan tangerine, or Flat lemon, is a small, green citrus fruit native to Okinawa, Japan and Taiwan. It is a member of the Rutaceae family and is known for its high Vitamin C content and distinctive sour taste.

Description

Citrus depressa is a small tree or shrub that grows up to 4 meters in height. The leaves are evergreen, glossy, and have a strong citrus aroma. The fruit is small, typically 4-6 cm in diameter, and has a flat shape, hence the name "Flat lemon". The skin is thin and green, turning yellow when fully ripe. The pulp is extremely sour, even more so than a lemon or lime, and contains numerous small seeds.

Cultivation and Uses

Citrus depressa is primarily grown in Okinawa and Taiwan. It thrives in subtropical climates and prefers well-drained soil. The fruit is typically harvested in the fall.

The fruit is used in a variety of culinary applications. It is often used as a flavoring in beverages, desserts, and sauces. In Okinawa, it is a key ingredient in Awamori, a traditional rice liquor. The juice is also used as a natural cleaning agent due to its high acidity.

In addition to its culinary uses, Citrus depressa is also used in traditional medicine. It is believed to have antioxidant properties and is used to treat a variety of ailments, including colds, flu, and digestive issues.

Health Benefits

Citrus depressa is rich in Vitamin C, a powerful antioxidant that helps protect the body against free radicals. It also contains other beneficial compounds, such as flavonoids, which have been shown to have anti-inflammatory and anti-cancer properties.

See Also

• Citrus
• Rutaceae
• Vitamin C
• Awamori

References

• Citrus depressa in Flora of China @ efloras.org
• Citrus depressa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service.

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• Citrus depressa
  Citrus depressa
• Citrus depressa var. kugani
  Citrus depressa var. kugani
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  Diallyldisulfid formation