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Waldschatzfinder

Satan's bolete

Rubroboletus satanas · Boletes (Boletaceae)

Poisonous
Satan's bolete
📷 davidepuddu, CC BY 4.0 (Wikimedia Commons)
Poisonous. Causes violent gastrointestinal poisoning, raw or cooked.

Recognise it safely – what matters

  1. Pale, chalky grey cap – from above like a porcini
  2. Red pores and red, netted stem
  3. Chalky soil, warm broadleaf forests

Features

Cap
8–25 cm, whitish to olive grey, as if dusted with chalk.
Underside
Pores: blood red to orange-red.
Stem
Thick, bulbous; yellow at the top, red further down with a red network.
Flesh
Yellowish, only weakly blues when cut.
Smell
Unpleasant, carrion-like when older.
Spore print
Olive brown

Season

Habitat

Warm broadleaf forests on chalky soil, under beech and oak. Rare and protected in many regions.

Bøg, Eg

Risk of confusion

Netstokket indigo-rørhat Edible species The lurid bolete also has red pores, but an olive to leather-brown cap, and it blues strongly as soon as it is cut. Spiselig rørhat Edible species Only similar from above: porcini have white to olive-yellow tubes, never red ones.

If someone has eaten it

Violent vomiting, diarrhoea and stomach cramps; in children and older people the loss of fluids can become dangerous. First symptoms: usually 1–4 hours after eating.

Act immediately – even without symptoms:

  • Emergency number 112 if someone feels unwell.
  • Poison centre: Germany – area code of the nearest city with a poison centre + 19240 (e.g. Berlin 030 19240, Munich 089 19240) · Austria +43 1 406 43 43 · Switzerland 145.
  • Keep leftovers, trimmings or vomit – it helps with identification.

Never identify mushrooms by pictures or an app alone. When in doubt, ask a mushroom expert – and only pick what you know for sure.

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