Entoloma Lividum is a species of mushroom commonly known as the "lilac toughshank". It belongs to the Entolomataceae family and can be found in Europe, Asia, and North America. There are many synonyms for Entoloma Lividum, as it has been described and classified under different names throughout history. Some of its synonyms include Rhodophyllus lividus, Nolanea lilacina, and Entoloma sinuatum. The lilac toughshank has a distinctive lilac or lilac-grey cap and a tough stem. It is not edible and can cause gastrointestinal problems if ingested. Despite this, it is a popular mushroom for foraging enthusiasts and is often used in photography and nature studies.