It is an erect, herb, cultivated for its oily seeds. Leaves narrow and entire. Flowers are large, blue or bluish violet and entire. Flowers are large, blue or bluish violet and pentamerous in terminal panicles. Stamens 5 and alternating with staminodes. Fruits capsular, with five cells, each containing 2 seeds. Seeds are yellowish or blackish brown, small, flattened, oval, with smooth and shining seed coat and small albumen. It is cultivated throughout India.
It is used internally in habitual constipation, functional disorders of the colon resulting from the misuse of laxatives and irritable colon, as a demulcent preparation in gastritis and enteritis. Externally, the powdered seeds or the press-cake are used as an emollient, in poultices for boils, carbuncles and other skin afflictions.