About this fungus
Butter Bolete is a fungus in the Boletaceae family. Its habitat and field characteristics are summarised below.
A substantial European bolete with a dry brown to yellow-brown cap, bright yellow pores and a stout yellow stem, often with a fine network near the top.
What to check
Check yellow pores, pale yellow flesh and fine reticulation on the upper stem. Bruising and cut flesh often turn blue, but the reaction can vary in speed and strength. There is no ring or volva.
Lookalikes
Butyriboletus subappendiculatus is associated with conifers and usually does not blue. B. regius normally has a pinker cap.
Habitat and range
Mycorrhizal on the ground with broadleaf trees, especially oak and beech, mainly in Europe. Warm broadleaf woodland is the typical setting.
Food safety
Choice edible.
Never munch on a hunch
Use this profile to learn what to examine and compare, not as proof that a mushroom is safe to eat. Check the whole specimen and every important lookalike before reaching an identification.
Use this profile to learn what to examine and compare, not as proof that a mushroom is safe to eat. Check the whole specimen and every important lookalike before reaching an identification.