Rheum
Synonyms
Chinese Rhubarb
Da Huang
Huang, Da
Rheum officinale
Rheum rhaponticum
Rheum tanguticum
Rhubarb
Rhubarb, Chinese
A plant genus of the family POLYGONACEAE. Members contain chrysophanic acid, rhein, EMODIN, and other ANTHRAQUINONES. The roots were formerly used as PURGATIVES.