Caloboletus firmus is a robust mushroom notable for its thick, yellow stem and the vibrant yellow to olive hues on its cap. It features a unique pore surface that bruises blue when damaged. This species typically grows in coniferous forests, forming associations with the roots of trees to mutually benefit each other. It is found mostly during the summer to early fall.
In This Article
Attributes
Similar Species
Tips for Finding
Clean and Preserve
Common Questions
General Info About Caloboletus firmus
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Attributes of Caloboletus firmus
Height
6 - 13 cm
Cap
convex,the surface smooth to finely velvety,and whitish to grayish or pinkish buff,bruising brown
Stem
The stem is yellowish at the top,sometimes with a fine reddish,raised network,and pink below,bruising brown
Flesh
The flesh is pale yellow,turning slightly blue when cut
