Wood polypore (Pseudoinonotus dryadeus) photo and description

Wood polypore (Pseudoinonotus dryadeus)

  • Department: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Incertae sedis (undefined)
  • Order: Hymenochaetales
  • Family: Hymenochaetaceae (Hymenochetes)
  • Genus: Pseudoinonotus (Pseudoinonotus)
  • Species: Pseudoinonotus dryadeus (Woodpecker)
    Other names for the mushroom:
  • Tinder fungus
  • Inonotus woody


  • Oak polypore;

  • Inonotus woody;

  • Inonotus dryadeus;

  • Boletus dryadeus;

  • Polyporus dryadeus.

Wood polypore (Inonotus dryadeus)

The tree polypore (Pseudoinonotus dryadeus) is a fungus from the Hymenochaetaceae family, belongs to the genus Pseudoinonotus.

External description

The tree polypore (Inonotus dryadeus) has an irregularly shaped fruiting body. Outwardly, it resembles a large sponge. Its surface is covered with velvet fibers. On it you can often see the emerging yellow liquid in the form of droplets.

The mushroom pulp is woody and very tough. The fruit bodies of the tree tinder fungus are large and have a characteristic shape. Many of them show a large number of pits. These are traces that appear as a result of the removal of water from the fungus.

The thickness of the fruiting body of the arboreal tinder fungus in some specimens reaches 12 cm, and the height does not exceed 0.5 m. The shape of this species of fungi varies from half sessile to cushion. Many specimens are characterized by a slight bulge, a rounded and thick edge (sometimes wavy), and a narrower base. Mushrooms grow singly, sometimes in small tiled groups.

The surface of the fruit body is completely dull, not divided into separate areas, characterized by a yellowish, peach, yellowish-rusty, tobacco color. Often there are bumps, bumps on it, and a crust appears on top of older specimens.

Fungal spores are brown, the hymenophore is tubular, brownish-rusty in color. In mature mushrooms, the fruit body is covered from above with a transparent and light film of mycelium.

Season and habitat of the fungus

The woody polypore (Inonotus dryadeus) prefers to grow at the base of a living oak, near the root collar. Rarely, this species can be found near deciduous trees (chestnuts, beeches, maples, elms). Fruiting throughout the year.


The woody polypore (Inonotus dryadeus) is inedible.

Similar types and differences from them

Not found.

Other information about the mushroom

The tree polypore (Inonotus dryadeus) is easily recognizable due to its substrate and characteristic external features.