- Botanical Name: Citrus limon (Linn.) Osbeck
- Family: Rutaceae
- Synonyms: Jambira, Nimbuka, Nimbu, Kagaji Nimbu
- Vernacular Name: Commonly known as “Lemon” in English, “Nimbu” in Hindi, and “Elumichai” in Tamil.
- Classification: A small evergreen tree or shrub belonging to the Rutaceae family.
- Habitat: Widely cultivated in tropical and subtropical regions, including India, for its fruits. It thrives in well-drained loamy or alluvial soils.
- Morphology: A small tree, 3-6 meters tall, with angular branches and sharp spines. The leaves are shiny, evergreen, and alternate. The flowers are small, white, and fragrant. The fruit is a yellow, ovoid berry with a nipple-shaped apex.
- Useful Parts: Fruits (juice and peel), leaves, and seeds.
- Chemical Composition: Contains citric acid, ascorbic acid (Vitamin C), flavonoids, limonin, hesperidin, and essential oils.
- Pharmacological Action: Known for its digestive, carminative, antiemetic, antiscorbutic, and antimicrobial properties. It is also used as a cardiotonic and in treating anorexia, indigestion, and dehydration.
- Formulation: Used in Ayurvedic preparations like Madiphala Rasayana, Nimbuka Taila, and herbal tonics for digestive health.
Rasa: Amla ,
Guna: Guru, Tikshan
Virya: Ushna
Vipaka: Amla