Jangli Almond is a tree in the Achariaceae family. Hydnocarpus wightiana seed oil has been widely used in Indian traditional medicine  and Chinese traditional medicine for the treatment of leprosy. It entered early Western medicine in the nineteenth century before the era of sulfonamides and other antibiotics for the treatment of several skin diseases and leprosy. The oil was prescribed for leprosy as a mixture suspended in gum or as an emulsion.

Jangli Almond is a tree up to 10 m tall. Bark is brownish, fissured; blaze pinkish. Branchlets are round, minutely velvet-hairy. Leaves are simple, alternate, carried on 0.7-2.2 cm long stalks. Leaves are 8-23 x 3.5-10 cm, usually oblong to elliptic-oblong, tip long-pointed, often falling off, base narrow, margin toothed, papery, hairless. Midrib is raised above, secondary nerves 5-7 pairs. Flowers are borne in short cymes or solitary, in leaf axils. Petals are white. Berry is woody, round, 6-10 cm across usually brown tomentose, black when young; seeds numerous. Jangli Almond is endemic to the Western_Ghats- very common in South and Central Sahyadris.

The oil from the seed is alterative, antibacterial and stimulant. It is often used, both internally and externally, in the treatment of lepromatous leprosy, and is effective in early cases in decreasing the size of nodules, anaesthetic patches and skin lesions. The oil has also been recommended as a topical application to treat rheumatism, sprains and bruises, sciatica and chest complaints, and for dressing wounds. The seed oil is used in the treatment of leprosy, rheumatic arthritis, worms, diabetes, body swellings and other skin diseases. It is used in Ayurveda, Sidha and Folk systems of medicine in India.