From Teapedia- Da Hong Pao is a prestigious Wuyi oolong tea. It is a premium variety of the Wuyi Yancha (武夷岩茶, Wuyi Rock Tea) group of oolong. According to legend, the mother of a Ming Dynasty emperor was cured of an illness by a certain tea, and that emperor sent great red robes to clothe the four bushes from which that tea originated. Three of these original bushes, growing on a rock on Mount Wuyi and reportedly dates back to the Song Dynasty, still survive today and are highly venerated.
Due to its high quality, Da Hong Pao tea is usually reserved for honored guests in China.