Polygonum fagopyrum is commonly known as buckwheat, which is a plant that belongs to the family Polygonaceae. The word Polygonum Fagopyrum is derived from the Latin words "polygonum" which means many angles or corners and "fagopyrum" which means beech wheat. Buckwheat is a versatile plant that has been used for centuries in various ways. It is often used as a healthy food alternative for people with gluten sensitivity or celiac disease. Some other synonyms for Polygonum Fagopyrum include beech wheat, black wheat, common buckwheat, and Japanese buckwheat. Buckwheat is a unique and nutritious food that is beloved by many cultures around the world.