Sargentodoxa cuneata Identity & Plant Part
The botanical entity is Sargentodoxa cuneata (Oliv.) Rehder & E.H.Wilson, a deciduous climbing vine of the Lardizabalaceae from central and southern China. The part used is the stem. Leaves, fruit and roots are not part of this ingredient, and the cut stem shows a characteristic radial pattern of red-brown wood.
The red vine name causes confusion in trade lists. Spatholobus suberectus, sold as ji xue teng, is a different climbing legume with a red sap, and it is not interchangeable with Sargentodoxa. Sargentodoxa cuneata stem carries phenolic acids, lignans, anthraquinones, triterpenes and tannins, named as families only.












