[3][4] It is endemic to south-east Asian region including Bangladesh, Bhutan, China, India, Myanmar, Nepal, Taiwan, Thailand and Vietnam.

In India it is found only in the eastern region such as Arunachal Pradesh, Assam, Meghalaya, Manipur, Mizoram, Nagaland, Sikkim, Tripura and West Bengal.

[11][12] The crushed concoction of D. taiwaniana leaves are used by some native tribals of north-east India, and the root bark is also directly eaten for treating intestinal infection.

[13] A 5% water suspension of the seeds is as effective as 0.1 % benzene hexachloride spray when used against the ten-spotted grape leaf-beetle, Oides decempunctata; and also more potent than phenothiazine against the fifth-instar small white butterfly, Pieris rapae.

[19] Several chemical analyses have yielded a number of novel prenylated isoflavones including erysenegalensein E, euchrenone b10, isoerysenegalensein E, 6,8-diprenylorobol, furowanin A and B, millewanins F, G and H, warangalone, and auriculasin from the leaves.

[22] In addition, terpenoids such as epifriedinol[clarification needed] and friedelin, and steroids (phytosterols) such as campesterol, β-sitosterol and stigmasterol are also identified from the stem and leaf.