Species details

Smoky polypore

Bjerkandera adusta

Inedible
Smoky polypore – Bjerkandera adusta

Photo: Penelope Noel Gillette · CC BY 4.0 · Photo source · License

Description

A thin bracket fungus with a strong contrast between pale flesh and a grey to blackish pore surface.

Identification features

Caps are thin, fan- to semicircular and often overlap. The upper surface is grey-brown; the greyish pores beneath darken strongly with age or handling.

Identification checklist

In section, look for a sharp contrast between pale cap flesh and the darker grey-black tube layer. Pores darken further when bruised.

Detailed features

Hymenophore
The upper surface is grey-brown; the greyish pores beneath darken strongly with age or handling.

Habitat

Grows on dead hardwood, especially beech, and sometimes on damaged living wood, throughout the year.

Fruiting period

January, February, March, April, May, June, July, August, September, October, November, December

Ecology

Host trees
Beech (Fagus)
Substrate
Dead wood, Living wood
Notes
Grows on dead hardwood, especially beech, and sometimes on damaged living wood, throughout the year.

How to separate similar species

Bjerkandera fumosa shows a different relationship between pale flesh and pore layer and often a distinct dark separating line. A section is therefore useful.

Similar species

Extended-description sources