Tremella

Where it grows

Tremella fuciformis grows naturally on dead hardwood branches across the tropics and subtropics, though always parasitically — it does not decay wood itself but feeds on the mycelium of another decay fungus. Almost all the tremella sold worldwide comes from cultivation on hardwood logs or supplemented sawdust in subtropical China.

How to recognise it

A gelatinous, frilly mass of pale yellow or off-white wavy ribbons clustered like a small open lettuce. The texture is rubbery and translucent when fresh; the cultivated form is usually sold dried and brittle, expanding dramatically on soaking.

Edibility & cautions

Edible and considered medicinal in Chinese tradition. Both fresh and rehydrated forms are bland; the appeal lies in the soft slippery texture. Tremella’s polysaccharides are valued in skincare for moisture retention.

Culinary and medicinal use

Soaked and simmered in sweet soups with goji berries, rock sugar, and red dates; served warm in winter and chilled in summer. Tremella tablets and creams are marketed for skin hydration, with modest supporting evidence.