A number of inedible boletes are superficially similar in appearance but lack one or more of the key characteristics. The edible
Boletus fibrillosus differs in that the cap is matted with dark fibers and it grows in coastal forests. The edible
Butyriboletus regius differs in that the cap is pink to rose red, the stem is bright yellow, the pores slowly and inconsistently discolor to blue when bruised, and it occurs in coastal forests.
See also
Boletus edulis.