Genus Silybum is a type of plant that belongs to the family Asteraceae. It is commonly known as milk thistle or Saint Mary's thistle. This plant has been known for its medicinal properties for centuries, and is mainly used for liver disorders and as a Galactagogue to improve milk supply in lactating mothers. Some other synonyms for Genus Silybum include Carduus marianus, Marian thistle, Scotch thistle, and Mediterranean milk thistle. This plant is believed to have originated in the Mediterranean region, but is now found all over the world, growing mainly in dry areas. Its unique purple flowers and spiny leaves make it a popular ornamental plant as well.