The inedibly bitter
Caloboletus rubripes differs in that the cap is lighter brown, the cap surface develops cracks and fissures when old, and the stem is not uniformly red, particularly on the upper part. A number of other similar-looking species are edible (or probably edible), but do not match all the key characteristics of this species. For example,
X. dryophilus and
X. truncatus differ in that the cap is lighter brown, the cap surface develops cracks and fissures when old, and the stem is not uniformly red, particularly on the upper part.