Tuberous Polypore

Polyporus tuberaster

Family: Polyporaceae

Also called: Tuberous Polypore, Stone Fungus, Pietra fungaia

Tuberous Polypore (Polyporus tuberaster)
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Overview

Pale tan scaly cap on a central stem, fruiting from a hard buried sclerotium (the 'stone fungus' once sold as a re-fruiting curiosity in Italian markets). Spring to early summer in European hardwood woods. Tender when young.

Edibility
Edible
Rarity
uncommon
Trophic mode
saprotrophic
Typical peak
Jun

Season

May–Sep — typical fruiting months: Apr, May, Jun, Jul, Aug, Sep.

Host trees & substrate

  • Dead / buried hardwood

Where it grows

See live fruiting predictions for Tuberous Polypore on the forecast home page, or browse the full field guide.

Always confirm wild-mushroom identification with multiple sources and a knowledgeable local expert before consuming. Read the foraging safety guide.