Ganoderma lucidum is a large-scale higher basidiomycete fungus and a natural taxon. Ganoderma belongs to Kingdom Fungi, Basidiomycota, Basidiomycetes, Aphyllophorales, Ganodermaceae, and Ganoderma. In ancient times, Ganoderma lucidum was called "auspicious grass" and "immortal grass" and was regarded as an auspicious thing because Ganoderma lucidum can improve human immunity and has good health care effects. Ganoderma lucidum is not a grass in the true sense, because grass in the ordinary sense is a higher plant with chloroplasts and can perform photosynthesis, while Ganoderma lucidum is a higher fungus and cannot perform photosynthesis. It has been used in the history of Chinese medicine for more than 2,000 years. my country's oldest medical book "Shen Nong's Materia Medica" lists Ganoderma lucidum first in the "Ranking of 360 Chinese Herbal Medicines", ahead of ginseng. It can prevent and cure diseases for a long time. Take "top medicine" that has no side effects. Ganoderma lucidum also has a common name: "Huanyangcao".