Gentiana macrophylla Identity & Plant Part
The botanical entity is Gentiana macrophylla Pall., a perennial of the Gentianaceae with long lance-shaped basal leaves and blue flowers. The part used is the root, and the aerial parts are not included. Qin jiao is a pharmacopoeial drug name that covers several related gentians, so material identified only by the common name can come from a different species. The yellow gentian of European trade, Gentiana lutea, is another plant altogether. The root of Gentiana macrophylla is strongly bitter, and iridoid and secoiridoid glycosides are its characteristic constituent family, named here without figures.












