The ascus of Pleurotus eryngii extends to one side, and the opposite side splits to the base, which is spike-shaped, 3-5 cm high and 2-3 cm wide, and gradually tapers down to form a stalk-shaped base. After drying, the surface is light yellowish brown, the seed layer is light pink gray, and the stem is milky white. Ascomycetes are cylindrical.

Morphological characteristics: Ascomycetes extend to one side and split to the base on the opposite side, which is spike-shaped, 3-5cm high and 2-3cm wide, and gradually tapers down to form a stalk-like base. After drying, the appearance is light yellowish brown, the seed layer is light pink gray, and the stem is milky white. Ascomycetes are cylindrical,150-200μ m×10-12μ m. Spores are arranged in a single row, oval, smooth and colorless, and contain two oil droplets,12-15 μ m× 6-8 μ m.

Ecological habits: In summer and autumn, it is clustered or nearly clustered in coniferous forests or broad-leaved forests.

Auricularia auricula, the dried fruiting body of Auricularia auricula, a fungus of Auricularia auricula. Auricularia auricula is sweet and flat, and belongs to the stomach and large intestine; Has the effects of invigorating qi, moistening lung, strengthening brain and building body. Indications: diarrhea, gum pain, proctoptosis, bloody stool and other symptoms caused by qi deficiency or blood heat.

The main components of auricularia auricula are auricularia auricula polysaccharide, provitamin, ergosterol, echinocandin and so on. Among them, auricularia auricula polysaccharide is the main component.