Family Polygonaceae refers to a group of diverse plants, commonly known as the knotweed family. This group includes various vegetation such as rhubarb, buckwheat, and sorrel. The family Polygonaceae is also known by several other synonyms, including buckwheat family, dock family, smartweed family, and knotweed family. The term "smartweed" refers to the plants' ability to induce a burning sensation when consumed. Besides their culinary uses, these plants are also medicinal, and supplements made from these plants have been used to treat several illnesses. The family Polygonaceae is an essential group of plants that are often overlooked but are vital to our existence.