Sweet potato
Sweet potato is a tropical perennial plant, Ipomoea batatas, cultivated for its enlarged edible storage roots, which range in color and sweetness.
Ipomoea batatas: The botanical species cultivated as sweet potato, with edible storage roots and trailing stems. This is the plant species that produces the crop.
Sweet potato cultivation: The propagation and farming of sweet potato for food and other uses. Farmers commonly establish crops from vine cuttings or sprouts rather than true seed.
Domestication of plants: The process by which people cultivate and alter wild plants across generations. Sweet potato became a crop through long-term human cultivation and selection.
Potato: A starchy crop plant, Solanum tuberosum, whose edible organs are underground stems called tubers. Despite the shared name and culinary uses, potato is a distant botanical relative.
Storage root: An enlarged root that stores carbohydrates and other reserves for a plant. The edible part is a storage root, not a tuber.
Sweet potato vine: The trailing stems and leaves of Ipomoea batatas, used for propagation and sometimes as food. Vine cuttings are a common way to plant sweet potato fields.
Tropical America: The tropical regions of the Americas, spanning parts of Central and South America and the Caribbean. Archaeological and genetic evidence places sweet potato’s domestication in this broad region.
Yam: An edible tuber from species of the genus Dioscorea, grown in tropical regions. Yams are botanically distinct, although the name is sometimes applied to sweet potatoes in the United States.
Starch: A plant-produced carbohydrate made of glucose units and used for energy storage. Starch supplies much of the root’s energy and contributes to its cooked texture.
Baking: A cooking method that uses sustained dry heat, usually in an oven. Baking softens the root and can intensify its sweetness.