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Trachyspermum ammi - Carom, Ajwain, Ajamoda

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Ajwain, Trachyspermum ammi
Ajwain, Avanika, bishop's weed

Trachyspermum ammi is an annual herb in the family Apiaceae. It originated in India and Pakistan. Both the leaves and the fruit of the plant are consumed by humans. Ajamoda consists of dried, aromatic fruits of Apium leptophyllum. It is an annual herb cultivated in Andhra Pradesh, Gujarat, Madhya Pradesh and Karnataka. It is collected by thrashing plants on a mat and dried in shade or in drying sheds.


Parts Used

Chemical Composition

The essential oil (2.5 to 5% in the dried fruits) is dominated by thymol (2-isopropyl-5-methylphenol, 35 to 60%); furthermore, α-pinene, p-cymene, limonene and γ-terpinene have been found.[2]

Common names

Language Common name
Kannada Oma, Ajavana, Omakki
Hindi Ajmuda, Ajmod
Malayalam Ayamodakum, Omam
Tamil Omam
Telugu omaan, Naranji vamu
Marathi NA
Gujarathi NA
Punjabi NA
Kashmiri NA
Sanskrit Ajamoda
English Ajwain



Reference: Dravya - Substance, Rasa - Taste, Guna - Qualities, Veerya - Potency, Vipaka - Post-digesion effect, Karma - Pharmacological activity, Prabhava - Therepeutics.



Tikta (Bitter), Kashaya (Astringent)


Laghu (Light), Ruksha (Dry), Tikshna (Sharp)


Ushna (Hot)


Katu (Pungent)


Kapha, Vata





Kind Shape Feature
Simple The leaves are rather distant, 2-3-pinnately divided in narrow linear segments



Type Size Color and composition Stamen More information
Unisexual 2-4cm long White and small 5-20 Flowers are borne in terminal or seemingly-lateral stalked. Flowering season is February - September


Type Size Mass Appearance Seeds More information
Ovoid 7–10 mm The fruits are ovoid, aromatic, greyish brown The mericarps, which are the components of the fruit, are compressed Many Fruiting season is February - September

Other features

List of Ayurvedic medicine in which the herb is used

Where to get the saplings

Mode of Propagation

How to plant/cultivate

Requires a moist soil in a sunny position. This species is not frost tolerant, but it might be possible to grow it outdoors in Britain as a spring sown annual.[5]

Commonly seen growing in areas

Photo Gallery


  1. 1.0 1.1 1.2 ”Karnataka Medicinal Plants Volume - 2” by Dr.M. R. Gurudeva, Page No.25 and 33, Published by Divyachandra Prakashana, #45, Paapannana Tota, 1st Main road, Basaveshwara Nagara, Bengaluru.
  2. Chemical constituents
  3. The Flowers of India
  4. Plant description
  5. Cultivation details

External Links