Dr Sallallah Md Amu
Astragalus is herb found mainly in temperate climate of Northern China, Korea, North-eastern Russia, and Japan and Northern part of USA. This is a perennial herb & shrub its length about 2-3 feet. When it become four year old then root part of this plant used, many hundred species of this plant cultivated but only few used as a drug. There are three chemical compounds found in its roots, Saponin, Flavonoids and polysaccharides.