Steviol glycoside
（重定向自Rebaudioside）
![Molecular structure of stevioside.](/Images/godic/202502/06/Stevioside.svg4223.png")
![Molecular structure of steviol, showing the substituted hydrogens on the carboxyl group (bottom) and the hydroxyl group (top)](/Images/godic/202502/06/Steviol_structure.svg4223.png")
Steviol glycosides are the chemical compounds responsible for the sweet taste of the leaves of the South American plant Stevia rebaudiana (Asteraceae), and the main ingredients (or precursors) of many sweeteners marketed under the generic name stevia and several trade names. They also occur in the related species Stevia phlebophylla (but in no other species of Stevia) and in the plant Rubus chingii (Rosaceae).