Xerocomus lookalikes and how to spot them

Xerocomus boletes are among the mushrooms people rarely get wrong: they have no deadly poisonous lookalikes. Still, a few similar mushrooms are worth knowing, because they can ruin a dish or throw a beginner off.

Let's look at what you might confuse a Xerocomus bolete with, which lookalike is the most annoying, and how to confidently tell the real thing from its look-alike neighbors.

The peppery bolete, the main lookalike

The best-known lookalike of Xerocomus boletes is the peppery bolete (Chalciporus piperatus). It's small, has tubes, and really does resemble a young Xerocomus bolete.

But there are some clear differences:

• Pores in the peppery bolete are rusty red or reddish brown, not yellow.
• Stem slender, often yellow at the base.
• Taste sharp and fiery-peppery, the key feature.

The peppery bolete is not poisonous and doesn't cause serious poisoning. But because of its fiery taste, even a single one will ruin a whole dish. Some foragers even use it dried as a hot seasoning, but for an ordinary basket it's best left alone.

Bitter bolete

Sometimes people confuse Xerocomus boletes or their close relatives with the bitter bolete, also called the bile bolete (Tylopilus felleus).

It's bigger than a Xerocomus bolete and looks more like a porcini or a birch bolete, but a beginner can still mix them up. It gives itself away with pinkish tubes, a dark net on the stem and an unbearably bitter taste. It contains no poison, but the bitterness makes a dish inedible.

The rule is simple: if a mushroom tastes bitter or fiery, it's not an edible Xerocomus bolete. Touching a tiny piece to the tip of your tongue (without swallowing) is the most reliable way to check.

Other similar mushrooms

Xerocomus boletes are easy to confuse with one another, but all of these mix-ups are harmless.

• The red cracking bolete, the suede bolete and the ruby bolete look alike, but all of them are edible.
• The bay bolete also resembles a large Xerocomus bolete, but it's even more prized.
• Young boletes in general can look alike, so it's important to check the pores and the taste.

So the only truly unwelcome mushrooms here are the bitter bolete and the fiery peppery bolete. The other lookalikes are either edible or even tastier than Xerocomus boletes.

Simple safety rules

To keep picking Xerocomus boletes pleasant and safe, stick to a few habits.

1. Check the pores. Yellow or greenish is good; bright red or orange is a reason to pass.
2. Check the taste. Bitterness or a burning taste will give a lookalike away immediately.
3. Don't be scared of bluing. It's harmless and typical of Xerocomus boletes.
4. If in doubt, leave it out. A single mistake isn't worth a ruined dish.

Xerocomus boletes forgive beginners a lot, but caution with mushrooms never hurts. And to head into the forest right when they start fruiting, use our mushroom radar: it shows when moisture and warmth line up just right for mushrooms to appear.

Sources

• “Identification Guide to the Fungi of Ukraine” (Kyiv, Naukova Dumka publishers).
• Chalciporus piperatus on GBIF, the global biodiversity database.
• Chalciporus on MycoBank, the international fungal nomenclature database.
• Chalciporus piperatus on Wikipedia.