Cloud ear fungus

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iCloud ear fungus

Scientific classification

Kingdom:	Fungi
Division:	Basidiomycota
Class:	Heterobasidiomycetes
Order:	Auriculariales
Family:	Auriculariaceae
Genus:	Auricularia
Species:	A. polytricha

Binomial name

Auricularia polytricha
(Mont.) Sacc.

Auricularia polytricha mycological characteristics:	?
Image:Smooth icon.png smooth hymenium
Image:No cap icon.png no distinct cap
Image:No gills icon.png hymenium attachment is not applicable
Image:NA stipe icon.png lacks a stipe
Image:White spore print icon.png spore print is white
Image:Saprophytic ecology icon.png ecology is saprophytic
Image:Edible toxicity icon.png edibility: edible

Cloud ear fungus (Auricularia polytricha, syn. Hirneola polytricha) is an edible jelly fungus. It is gray-brown in color and often used in Asian cooking. In Chinese, it is known as 云耳 (pinyin: yún ěr, lit. "cloud ear"), 毛木耳 (pinyin: máo mù ěr, lit. "hairy wood ear"), or 木耳 (pinyin: mù ěr, lit. "wood ear" or "tree ear"), and in Japanese it is called kikurage (キクラゲ, lit. "tree jellyfish"). It is also known as black fungus, black Chinese fungus, wood fungus, ear fungus, or tree ear fungus, an allusion to its rubbery ear-shaped growth.

The fungus grows in frilly masses on dead wood. It is a dark brown color but somewhat translucent. It is usually sold dried and needs to be soaked before use. While almost tasteless, it is prized for its slightly crunchy texture and supposed medicinal properties, including its newly discovered anticoagulant properties. Of note, the slight crunchiness persists despite most cooking processes.

Auricularia auricula-judae, a closely related species, is also used in Asian cooking.

Snow fungus, another edible fungus which is white in color, is a separate species, Tremella fuciformis.