Reishi, Ling Zhi: ‘Mushrooms of Immortality’

The iconic mushroom commonly known as Reishi (in Japanese) or Ling Zhi (靈芝 in Chinese) is probably the most respected medicinal mushroom in Asia. The earliest mention of Ling Zhi was in the era of the first emperor of China, Shinghuang of the Ch’in Dynasty 221-207 B.C.E. Once reserved for royalty to extend life and improve health, this polypore mushroom is strikingly beautiful. Deep reddish brown and saucer-shaped, often emerging from a branch-like stem, its smooth upper surface looks lacquered when wet. Because of this glossy appearance, Western mycologists called them “varnished conks” for many years (conks are mushrooms that have pores instead of gills on their undersides, such as maitake and turkey tails). While reishi mushrooms have historically been prepared as teas or infusions, other modern preparations include capsules, tinctures, and fractionated extracts of mushrooms, mycelium, and spores. Reishi is also added to chocolate bars, candies, energy drinks, and even coffee blends!