Scientific Name Oroxylum indicum Vent Family Bignoniaceae Used Part Bark Distribution Area Found throughout the greater part of India up to an altitude of 1,200 m. Common Uses . The root bark is a well known drug in Ayurvedic system and is prescribed fresh. The root bark is tonic and astringent and useful in diarrhoea and dysentery; it is diaphoretic and is used in rheumatism. Boiled in sesamum oil, it has been recommended for otorrhoea. Tender fruits are refreshing and stomachic and the seeds purgative. In Malaya, a decoction of the leaves is given in stomach ache and rheumatism; the leaves are used externally or enlarged spleen, headache and ulcers.