Grzybolog today

Mushroom forecast for today

Boletes (pores under the cap)

Brown birch bolete

Leccinum scabrum · also known as: Birch bolete, Rough-stemmed bolete, Scaber stalk

EdibleApproved for sale

A good edible mushroom. Pick young, firm fruit bodies – old ones have a watery cap and a woody stem. The flesh turns black during cooking.

Brown birch bolete (Leccinum scabrum) – fruiting bodies in their natural habitat
Photo: Jerzy Opioła / Wikimedia Commons, CC BY-SA 4.0

How to recognise it: brown birch bolete

  1. 1

    White stem with black scales

  2. 2

    Grows only with birches

  3. 3

    Brown cap

  4. 4

    Flesh does not change colour

Description

Cap
3–20 cm across, light to dark brown, hazelnut or grey-brown; slightly slimy when wet.
Tubes and pores
Tubes and pores whitish, then grey-brown; do not change colour when damaged.
Stem
Slender, whitish, densely covered with dark brown to black scales (scabers).
Flesh
White, firm in young specimens, watery in old ones; does not change colour when cut (at most slightly).
Smell and taste
Smell and taste pleasant, faint.

Where and when it grows

Always near birches (mycorrhizal) – in broadleaf and mixed forests, also outside forests; more often in dry or moderately moist places.

Most often with: birch

Season in Poland (June–October)

June, July, August, September, October

Where are conditions good today?

Look-alikes: what it can be mistaken for

  • Bitter bolete Inedible medium risk

    The bitter bolete has no black scales on the stem, only a dark network; its pores turn pink with age and its taste is extremely bitter.

  • Hazel bolete Edible low risk

    The hazel bolete grows under hornbeams/hazel, has a wrinkled cap that cracks in dry weather, and its flesh turns pink when cut, then black. Edible.

  • Red aspen bolete Edible low risk

    The brown birch bolete has a brown cap and black scales on the stem, and grows under birch. Edible. Not in this atlas: Leccinum versipelle (orange birch bolete; under birches, scales black from youth) – edible.

In the kitchen

Frying, stewing, soups, drying, preserving. Stems of older fruit bodies are tough – discard them. Darkens during cooking.

Protection and sale

  • Species protection: the species is not protected.
  • Sale: the species is on the list of mushrooms approved for sale (it may be sold only with a mushroom inspector’s certificate).

Where you may pick mushrooms →

Brown birch bolete: common questions

Is the brown birch bolete edible?

Edible. A good edible mushroom. Pick young, firm fruit bodies – old ones have a watery cap and a woody stem. The flesh turns black during cooking.

When does the brown birch bolete grow?

In Poland the fruiting bodies usually appear in: June, July, August, September, October. Habitat: Always near birches (mycorrhizal) – in broadleaf and mixed forests, also outside forests; more often in dry or moderately moist places.

What can the brown birch bolete be mistaken for?

Bitter bolete (inedible): The bitter bolete has no black scales on the stem, only a dark network; its pores turn pink with age and its taste is extremely bitter. Hazel bolete (edible): The hazel bolete grows under hornbeams/hazel, has a wrinkled cap that cracks in dry weather, and its flesh turns pink when cut, then black. Edible. Red aspen bolete (edible): The brown birch bolete has a brown cap and black scales on the stem, and grows under birch. Edible. Not in this atlas: Leccinum versipelle (orange birch bolete; under birches, scales black from youth) – edible.

Sources

  1. Wikipedia (pl): Koźlarz babka
  2. Atlas grzybów Polski – grzyby.pl (M. Snowarski)
  3. First Nature – fungi

Last checked: 9 November 2026. Spotted a mistake? Write to us.

Similar mushrooms in the atlas

Full atlas
esc

↑↓ move · enter open