See text Coptis (goldthread or canker root) is a genus of between 10 and 15 species of flowering plants in the family Ranunculaceae, native to Asia and North America.

Coptis teeta is used as a medicinal herb in China and the Eastern Himalayan regions of India particularly in Mishmi Hills of Arunachal Pradesh where it is used as a bitter tonic for treating malarial fever[1][2] and dyspepsia.

[6] The dried roots (goldthread) were commercially marketed in Canada until the 1950s or early 60s, to be steeped into a "tea" and swabbed onto areas affected by thrush (candidiasis) infection.

[2] It is occasionally seen growing under bamboo thickets around Mayodia region of Dibang Valley district in the Mishmi Hills of Arunachal Pradesh in India.

teeta and it is geographically distinct and inhabits broad leaf forests in Delai Valley of Lohit district in Arunachal Pradesh, India.