Rose red cap that is sometimes yellowish toward the margin; underside with tiny yellow pores; stalk reddish yellow; all parts slowly bruise blue. Grows singly or in groups of up to several, on the ground under oaks. June–October. Cap convex, becoming flat; rose red to pinkish, sometimes yellowish toward the margin; texture dry, not shiny; flesh is thick, pale yellow, slowly bruising blue when damaged. Pores tiny, angular; yellow, paler with age, slowly bruising blue. Stalk sometimes club-shaped; pinkish yellow with reddish tint toward the bottom; texture dry, dull, smooth; flesh yellow, slowly bruising blue. Spore print dull olive brown. Spores magnified are smooth, elliptical.
Lookalikes: Other Boletus species, some of which may be poisonous. Avoid eating boletes with orange to red pores, and those that bruise blue: “Bruising blue is not for you.”