Scientific Name: Trachyspermum ammi (Linn) Sprague
Nepali Name: Jwano
Sanskrit Name: Yawani
English Name: Ajowan
It is a small erect, annual shrub, with soft fine hairs. It has many branched leafy stems, feather like leaves 2.5 cm long, about 12 ray flowerheads, each bearing 6 to 12 flowers. The fruits are minute, egg-shaped and greyish.
Parts used: Fruit
Steam distillation of crushed seeds yields an essential oil called Ajowan oil which is valued condiderably in medicine on account of the presence of thymol.
Medicinal properties and uses:
The seeds are stimulant and are useful in counteraction spasmodic disorders. The oil of this plant is almost colourless to brownish liquid with characteristic odour and a sharp hot taste. If the liquid is allowed to remain undisturbed, a part of the thymol may separate from the crystals. It is much valued in medicine as it has nearly all the properties ascribed to the Jwano/ Bishop's seed.
It has long been used in indigenous medicine for the treatment of diarrhoea, dysentery, atonic dyspepsia, cholera, colic, flatulence and indigestion. For relieving flatulence, dyspepsia and spasmodic disorders, the seeds may be eaten with betel leaves. A teaspoon of these seeds with a little rock-salt is a household remedy for indigestion.
Powder: 1-3 gm
Oil: 1-3 Drops
Extract: 30-120 ml
Yawanikadi Kwath, Yawanikadi Churna, Yawanishadab, Yawanyarka