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Oryza sativa L.

Oryza glutinosa Lour.
Oryza sativa var. affinis Korn.
Oryza sativa var. erythroceros Korn.
Oryza sativa subsp. indica Kato
Oryza sativa cv. italica Alef.
Oryza sativa L. var. fatua Prain

Group: Monocot
Family: Poaceae - Grass family
Duration: Annual
Growth Habit: Graminoid

Bangla/Vernacular Name: Dhan.

Tribal Name: Cho (Khumi), Mi (Murang), Dhan (Rakhaing).

English Name: Rice.

Description of the Plant:

An annual crop, 60 cm to 120 cm tall. Leaf blade linear, 30-70 cm long, 6-20 mm wide, flat, striate, scaberulous; ligule pointed, often prominently exerted. Panicle partially included in upper leaf sheath or more usually exerted, erect in flower, nodding in fruit.

Chemical Constituents:

The husked rice contains carbohydrates (78.1%), some protein, minerals (sodium, potassium, magnesium, calcium, iron, sulphur and chlorine) and fat. It also contains vitamins- thiamine and nicotinic acid and a number of trace elements including zinc, aluminium, nickel, iodine, floride. The rice bran contains up to 25% fatty oil (Anon, 1966). Glucotricin have been isolated from leaves. Plant also contains two diterpene lactone growth inhibitors - momilactone A and momilactone-B (Rastogi and Mehrotra, 1993).

Oryza sativa L.

Oryza sativa L.

Mode of Uses:

  • Grains are used as rice. Boiled rice is the ingredients of Muli (Bangla beer) (Khumi).
  • Boiled rice is used as poultice (Murang).
  • First cooked rice is packed by a cloth and burn into fire then put the burned rice in cold water. This water with rice is taken as patient can, until cured to treat diarrhea (Rakhaing).


Cultivated widely throughout the country.

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