Species details

Beefsteak fungus

Fistulina hepatica

Extra caution required
Beefsteak fungus – Fistulina hepatica

Photo: Strobilomyces · CC BY-SA 4.0 · Photo source · License

Description

A fleshy reddish-brown bracket resembling raw liver in appearance and section.

Identification features

It exudes reddish droplets; the short separate tubes are whitish to pink below.

Identification checklist

Check the entire fruitbody for identification. A fleshy reddish-brown bracket resembling raw liver in appearance and section. It exudes reddish droplets; the short separate tubes are whitish to pink below. Typical habitat: On old oak and sweet chestnut, at the base, in cracks, or on stumps.

Detailed features

Cap
5–20 cm wide and 2–6 cm thick, fan- to shell-shaped, blood- to flesh-red and often gelatinously moist.
Hymenophore
Pores start pale pink and become reddish-brown; the tubes are separate from one another.
Stem
Stem absent or very short, thick, and lateral.
Flesh
Dark red, juicy and fibrous; may exude red juice when cut.
Smell
Sourish to indistinct.
Spore print
Pinkish-yellowish.

Habitat

On old oak and sweet chestnut, at the base, in cracks, or on stumps.

Fruiting period

July, August, September, October

Ecology

Trophic mode
Parasitic
Host trees
Oak (Quercus), Sweet chestnut (Castanea)
Substrate
Living wood, Dead hardwood
Notes
Most often on oak and sweet chestnut, especially damaged or weakened wood.

How to separate similar species

Compare especially with these similar species: Pseudoinonotus dryadeus, Laetiporus sulphureus. Check the combination of cap shape and colour, spore-bearing surface, stem, flesh changes and habitat. A single feature or photograph is not enough; if the key characters do not match the description, do not treat the identification as confirmed.

Similar species

  • Pseudoinonotus dryadeus

    Is more ochre to brown, harder, and lacks the characteristic blood-red juicy flesh.

  • Chicken of the woods (Laetiporus sulphureus)

    Is sulphur-yellow to orange and lacks liver-red flesh and separate tubes.

Conservation

Red list
R – rare species
Notes
On the Slovenian Red List: R – rare species.

Extended-description sources