Range. China, Cambodia, Laos, Malaysia, Myanmar, Thailand, and Vietnam. In Myanmar, found in Bago, Chin, Kachin, Kayin, Mandalay, and Shan. 
Use
Flower: Used as blood purifier. 
DeFilipps, Robert A.; Krupnick, Gary A. / PhytoKeys, v. 102. - - p. 1 - 314, 2018.