Astragalus membranceus (A. mongholicus, Huang Chi, Milk Vetch, Mongolian Milkvetch)

Astragalus membranceus (A. mongholicus, Huang Chi, Milk Vetch, Mongolian Milkvetch) is a perennial flowering plant in the legume family (Fabaceae), native to northern China, Mongolia, and Korea.  

Key characteristics  

Growth habit: Upright, clump-forming perennial, typically 16–36 inches (40–90 cm) tall  Leaves: Pinnate, with 12–18 pairs of small, oval leaflets that give the plant a soft, feathery appearance  

Flowers: Pale yellow, pea-like blossoms borne in dense clusters during late spring to early summer  

Roots: Thick, fibrous, and yellowish inside—this is the most valued part of the plant  Soil & climate: Prefers well-drained soils and full sun; tolerant of cold and drought once established  Cultural and historical significance

Astragalus membranaceus has been used for over 2,000 years in traditional Chinese medicine. The dried root is traditionally regarded as a tonic herb, associated with supporting vitality and resilience.  

Modern interest Today, it is widely studied and cultivated for its polysaccharides, flavonoids, and saponins, which have made it a subject of research in immune health, inflammation, and stress response.  Garden and agricultural notes  Fixes nitrogen in the soil, benefiting nearby plants  

Long-lived perennial when grown in suitable conditions  Primarily cultivated for its root, which is typically harvested after 3–5 years