Coptis quinquesecta

Coptis quinquesecta is a species of goldthread native to Jinping County, Yunnan, China and locally in northern Vietnam. China has it as a national key thread species in order to conserve it. Its chloroplasts have 79 protein coding genes, 30 RNA transferring genes, as well as four ribosomal RNA genes adding up to a total of 113 genes.

Coptis quinquesecta is used as a medicinal herb in folk medicine. It contains berberine and coptisine, which purportedly treats bacterial infections, the effects of diabetes, and high blood pressure.