Rehmannia glutinosa

Rehmannia glutinosa is one of the 50 fundamental herbs used in traditional Chinese medicine, where it has the name "shēng dì huáng" (). It is often sold as "gān dì huáng" (), "gān" meaning "dried".
Chemical constituents.
A number of chemical constituents including iridoids, phenethyl alcohol, glycosides, cyclopentanoid monoterpenes, and norcarotenoids, have been reported from the fresh or processed roots of "R. glutinosa"".