A leafy plant (Solanum tuberosum) which produces a starchy edible tuber. Native to the Lake Titicaca area of the southern Peruvian Andes. Domesticated by c.8000 bc in some areas (late Pre‐Ceramic stage), but not until c. ad 500 in northern coastal Peru. Introduced into Europe in the 16th century ad and into Britain by Sir Walter Raleigh about ad 1585. Over a thousand different varieties of potatoes are known.