Lactifluus piperatus

Lactifluus piperatus (synonym Lactarius piperatus), commonly known as the blancaccio, is a basidiomycete fungus of the genus Lactifluus. It was the original type species of the genus Lactarius, before being moved to Lactifluus.

The fruiting body is a creamy-white mushroom which is funnel-shaped when mature, with exceptionally crowded gills. It bleeds a whitish peppery-tasting milk when cut. Widely distributed across Europe and eastern North America, L. piperatus has been accidentally introduced to Australia. Mycorrhizal, it forms a symbiotic relationship with various species of deciduous tree, including beech, and hazel, and fruiting bodies are found on the forest floor in deciduous woodland.

Despite often being considered edible, it reportedly contains toxins and has a poor flavor, but can be used as a seasoning when dried.