Stevia rebaudiana yog ib tsob nroj herbaceous perennial ntawm tsev neeg Compositae thiab Stevia genus, haiv neeg rau cov nyom alpine ntawm Paraguay thiab Brazil hauv South America.Txij li xyoo 1977, Beijing, Hebei, Shaanxi, Jiangsu, Anhui, Fujian, Hunan, Yunnan thiab lwm qhov chaw. nyob rau hauv Suav teb tau qhia thiab cog....
Nyeem ntxiv