Fauna
Fungus

Ganoderma resinaceum

Ganoderma resinaceum

Also known as Resinous Bracket, Resin Bracket, Yellow Resin Conk

This impressive bracket fungus grows at the base or on roots of broadleaf trees, particularly oak and beech, where it causes a white butt rot. Young fruiting bodies often exude clear to yellowish resinous droplets along their thick, rounded edges. Over time, the cap develops a dark red-brown, lacquered crust that melts easily when exposed to a flame.

Bracket FungusWood-DecayerLacquered Cap
Ganoderma resinaceum reference1 / 7
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Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Key facts
Diet & preySaprotrophic and parasitic on hardwoods
Predators
  • Fungus Beetles
  • Fungus Gnats
  • Mites
ThreatsRemoval of host trees and forest management
HabitatsDeciduous woodlands, parklands, and urban tree bases
Life spanPerennial fruiting body, persisting for years
Classification
  1. FamilyPolyporaceae
  2. SpeciesGanoderma resinaceum
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Many wild mushrooms have toxic look-alikes; never eat wild fungi based on app identification alone.
Responsible observation
  • Observe Cap Texture: Look for the yellowish resin oozing from young growing margins.
  • Examine Attachment: Note how the bracket sits broadly attached to the base of living or dead host trees.
  • Check Underside Pores: Inspect the fine white to pale cream pores on the lower surface.
Related species
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