Siraitia grosvenorii??is an??herbaceous??perennial??vine??of the??Cucurbitaceae??(gourd) family, native to southern??China??and northern??Thailand. The plant is cultivated for its??fruit, whose extract is nearly 300 times??sweeter??than sugar and has been used in China as a natural low-calorie??sweetener??for cooling drinks, and in??traditional Chinese medicine??to treat??diabetes??and??obesity.