Dioscorea is a genus of flowering plants in the family Dioscoreaceae, commonly known for its tuberous roots. These plants are often referred to as yams, although true yams are primarily found in Africa and the Caribbean. They are cultivated for their edible tubers, which are rich in carbohydrates and can be used in various culinary dishes. There are over 600 species of Dioscorea, with some of the most well-known being Dioscorea rotundata and Dioscorea alata. These plants thrive in tropical and subtropical regions and are important food sources in many cultures. Additionally, some species have medicinal properties and are used in traditional medicine.