Fir, larch, pine, spruce.
Found growing at locations along the entire above-ground scaffold structure of the host tree. Persists on dead trees – often in great abundance.
Annual. Soft and fleshy when young and becoming tough and woody. Bracket rimmed off-white. Upper surface emerges an orange-brown and blackens in maturity – can create a zoned appearance to growing brackets. Exudes reddish-brown water droplets. Pore surface white and ageing to a light beige-brown. Pores visible and irregular. Sometimes slotted. Found singularly or in abundance – small to relatively large (~15-20cm across).
No research has been undertaken on the pathogenicity of this fungus. Attributed to a white rot of the wood. Presence indicative of localised dysfunction, on living trees. Where targets exist, hollowness investigations may be necessary. Presence along a stem in various places might indicate a coalesced decay column.