The rhizome of kali haldi has a bitter, sharp, hot taste, and a pleasant odour. It has anti bacterial and anti-fungal properties, and is laxative. It is used as a tonic for the brain and the heart. Rhizomes are useful in treating leucoderma, piles, bronchitis, asthma, tumors, and tuberculous glands of the neck, enlargement of the spleen, epileptic seizures, inflammations, and allergic eruptions. Black turmeric is native to Northeastern and Central India where it has been part of cultural ceremonies and medicinal remedies. Black turmeric is used by many tribal communities in the state of Madhya Pradesh, Maharashtra. The herb is sold fresh or dried in markets across India and Southeast Asia. As of 2016, Black turmeric has been listed as an endangered species by the Indian Agricultural Department. Efforts are being made to protect and conserve Black turmeric in Odisha, on the central eastern coast, along the Bay of Bengal. Dried rhizomes of Curcuma caesia are reported to contain 1.6% essential oil containing 76.6% d-camphor; 8.2% camphene and bornylene; and 10.5% sesquiterpenes, curcumine, ionone, and turmerone.