Citrus limetta is a species of citrus. Common names for varieties of this species include sweet limetta, Mediterranean sweet lemon, sweet lemon, and sweet lime. In Iran it is called Limu Shirin لیمو شیرین (in Persian: Limu = Lemon and Shirin = Sweet). In India, it is commonly called as Moosambi (Kannada,Malayalam), sathukudi (in Tamil), mousambi, mosambi, or musambi. (in Hindi/Urdu) and Bathaya Kaayalu (in Telugu). The Tamil name derived from the name of a village "sattukkudi' (சாத்துக்குடி) where this fruit was cultivated first in Tamil Nadu.
It is a small tree which may reach 8 m in height. The sweet lemon has irregular branches, and relatively smooth, brownish-grey bark. It possesses numerous thorns which may grow to anywhere from 1.5 to 7.5 cm long. The petioles of the sweet lemon are narrowly but distinctly winged, and are 8 to 29 mm long. It has leaflets rather than leaves, which are obovate and 5.5 to 17 cm long, 2.8 to 8 cm wide. The apex of the leaflet is acuminate, and the base of the leaflet is rounded. Flowers are white in bud and in bloom, ranging from 2 to 3 cm wide. The petals soon fall away, leaving the fruit to grow. The skin of the fruit is light yellow at maturity; the rind is white and about 5 mm thick.
The pulp is greenish and the juice is sweet rather than acidic. It is also referred as orange in some places of the world. Mosambi (sweet lime) juice is the most common available citrus juice in India, Pakistan and Bangladesh. Despite its name sweet lime it is more similar to a greenish orange (in appearance). To the Westerner's palate, the fruit may appear a bit 'bland' in comparison with western style oranges. Sweet lime is almost exclusively served as juice. Sweet lime juice is commonly sold at mobile road stalls, where it is freshly pressed, sometimes served with a salty chat masala or Kala Namak, unless the vendor is told not to add it. The fruit of the sweet lemon is edible, nutritious and its peel contains essential oils. The tree is used for ornamental purposes as well as for graft stock. In Iran, it is particularly used to treat flu and cold. Despite having little acidity, the fruit has high levels of Vitamin C. The juice is used by all, especially those who are sick. It is sold all year round.
Nutrition facts 
Serving Size 1 fruit (100g) Calories 43% Daily Values* Total Fat 0.2g- 0% Saturated Fat - 0% Cholesterol - 0% Sodium - 0% Total Carbohydrate 11g 4% Dietary Fiber 3g 12% Sugars 1.7g Protein 0.7g
- Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.