Rehmannia Extract (Shu Di Huang) Liquid, 4 oz, Herb PharmHerb Pharm Rehmannia Extract (Shu Di Huang) Botanical Name: Rehmannia glutinosa Plant Part Extracted: Dried traditionally processed root 3 Other Ingredients: certified organic grain alcohol & distilled water. Description: We prepare our Rehmannia Extract from the root of Rehmannia glutinosa plants that have been grown, harvested and processed according to traditional Chinese methods 3. To assure optimal quality Rehmannia, we directly purchase from