What common mushroom is known as the king bolete or porcini?

What common mushroom is known as the king bolete or porcini? Boletus edulis is the mushroom commonly called porcini or king bolete.

Boletus edulis is a prized edible basidiomycete known by many regional names, including cep, penny bun, and porcino. It forms mycorrhizal partnerships with trees, exchanging nutrients with host roots, and is widely distributed across the Northern Hemisphere. Its stout stem, brown cap, and pale-to-yellow pores are characteristic features.

The species has been valued in European cuisine for centuries. Fresh porcini appear seasonally, while dried specimens are traded internationally because drying intensifies their aroma and flavor. They are especially associated with soups, pasta, sauces, and Italian risotto. Despite their commercial importance, porcini remain difficult to cultivate reliably.

Several related species were once treated as varieties of B. edulis but have been separated through molecular studies. Wild collectors must also distinguish porcini from bitter or poisonous look-alikes, including Tylopilus felleus and Rubroboletus satanas. Common names can cover multiple related species, so expert identification is essential.