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.