A number of poisonous and/or acrid species of Lactarius
are similar in appearance but differ in that the cut flesh exudes a white rather than orange milk and the flesh does not eventually discolor to greenish. The edible and similar-looking L. deterrimus
differs in that the cut flesh exudes an orange milk that stains the surface purplish, then dull, dark green; it is sometimes considered a variety of L. deliciosus
. The edible and similar-looking L. thyinos
exudes an orange milk but differs in that the flesh does not discolor greenish.