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Sepia Bolete

Edible Edible
Autumn Autumn
Summer Summer

A rather unspectacular Bolete that can be difficult to identify to species, particularly as it ages. Although edible, this mushroom is rather tasteless and has a very spongy texture.

Mushroom Type
Common Names Sepia Bolete (EN),, Cap Tyllog Llwydfrown (CY), Suchogrzybek Obciętozarodnikowy (PL), Csapottsprórás Tinóru (HU)
Scientific Name Boletus / Xerocomellus porosporus
Synonyms Xerocomus porosporus, Boletus porosporus
Season Start Aug
Season End Nov
Average Mushroom height (CM) 6-10
Average Cap width (CM) 5-9
Please note that each and every mushroom you come across may vary in appearance to these photos.


5-9 cm. Starts olive brown and covered in tiny velvet like hairs, becoming paler and cracking, revealing cream to pale yellow flesh.


The pores are angular and start lemon yellow but darken with age and can then bruise blue. Xerocomoid Boletes have pore tubes that will generally split in half if the cap is torn apart, other Boletes pore tubes will normally separate and remain whole leaving them unbroken.


6-10 cm long, 1-2.5 cm diameter. The top of the stem is bright yellow with a red zone surrounding the stem near the apex becoming brown/grey lower down, as the mushroom ages it looses these features with the stem becoming grey/brown with a slightly lighter apex.


White/yellow in the cap and top of the stem, becoming red/brown towards the base. Can stain blue when cut, especially in the cap.


In mixed deciduous woods and hedgerows, more often with Oak.

Possible Confusion

Red Cracking Bolete (Xerocomellus chrysenteron), pictured, can look very similar but it usually has a mainly red stem and pink to red flesh between the cracks in the cap.

Spore Print

Olive/brown. Subfusiform.


Fairly Common.

Other Facts

Although edible, it is not a tasty mushroom and we don’t recommend eating them.


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