Sixty images of Astragalus, Huang-qi, Astragalus membranaceus in flower or fruit, including photographs with morning dew or morining ice. Astragalus is a member of the Pea Family (Fabaceae or Leguminosae) is native to Northeast Asia, cultivated elsewhere. The root is used, and is a famous tonic in traditional Chinese medicine, valued in the West as an immunostimulant.