Astragalus membranaceus, as one of the important âQi tonifyingâ adaptogenic herbs in Trational Chinese Medicine(TCM), has been used in China for thousand years. Astragalus Membranaceus is a perennial member of the flowering legume (pea) family. It is indigenous to the northern and eastern parts of China and Mongolia where the astragalus root has been used for several thousand years in a variety of herbal mixtures to treat everything from diseases of the heart, liver and kidneys, to viral infections, cancer and immune disorders. Chinese Medicine considers astragalus herb to be one of the most important herbal tonics and as such it is valued for its ability to strengthen the primary energy of the body which we know as the immune system, as well as the metabolic, respiratory and eliminative functions. This fact is being increasingly substantiated by western research.