Astilbe rivularis Buch.-Ham. ex D. Don, ( Saxifragaceae) Used Part is Flower It is met with in temperate Himalayas from Kashmir to Bhutan up to altitudes of 1,500-2,700 m and in Khasi hills. Root paste is mixed with honey and taken to control post- partum diarrhoea and dysentery. The rhizome is reported to contain bergenin and three triterpenoid acids, viz. astilbic acid (C30H48O4, m p 219- 23°), ß-peltoboykinolic acid (C30H48O3, m p 227-29°), and acetyl ß- peltoboykinolic acid (C32H50O4, m p 226-28°)