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Cultivation of potatoes in South America may go back 10,000 years, [3] but tubers do not preserve well in the archaeological record, making identification difficult. The earliest archaeologically verified potato tuber remains have been found at the coastal site of Ancón (central Peru), dating to 2500 BC. [4]
The tubers are small when compared to familiar varieties of S. tuberosum. [ 4 ] Escalante Valley in Utah boasts the oldest archaeologically documented cultivation sites of the Four Corners potato, dating back over 7,000 years, and the plant is so prevalent there that a former name for the area was "Potato Valley". [ 5 ]
The fifth phase is the maturation of the tubers: the leaves and stems senesce and the tuber skins harden. [61] [62] New tubers may start growing at the surface of the soil. Since exposure to light leads to an undesirable greening of the skins and the development of solanine as a protection from the sun's rays, growers cover surface tubers ...
Mignonette vine (Anredera cordifolia) produces aerial stem tubers on 3.5-to-7.5-metre-tall (12 to 25 ft) vines; the tubers fall to the ground and grow. Plectranthus esculentus , of the mint family Lamiaceae , produces tuberous underground organs from the base of the stem, weighing up to 1.8 kg (3 lb 15 oz) per tuber, forming from axillary buds ...
Native to Amazon. Domesticated and cultivated in South America, Central America and Caribbean. Indian Potato - roots of two native species- Apios americana and Apios priceana; Jerusalem artichoke - specific species of sunflower with large, edible root. Lily Bulbs- several species in Lilium family
The vine of American groundnut can grow to 1–6 metres (3 + 1 ⁄ 2 – 19 + 1 ⁄ 2 feet) long. It has pinnate leaves 8–15 centimetres (3–6 inches) long with 5–7 leaflets. [ 3 ] The flowers are usually pink, purple, or red-brown, and are produced in dense racemes 7.5–13 cm (3–5 in) in length. [ 3 ]
Illustrations and representations of ulluco on wooden vessels (keros), ceramic urns and sculptures have been used to date the presence and importance of these tubers back to 2250 BC. [ 9 ] Although it lost some importance due to the influx of European vegetables following the Spanish conquest in 1531, Ulluco still remains a staple crop in the ...
Yam plants can grow up to 15 metres (49 feet) in length and 7.6 to 15.2 centimetres (3 to 6 inches) high. [1] The tuber may grow into the soil up to 1.5 m (5 ft) deep. [1] The plant disperses by seed. [1] The edible tuber has a rough skin that is difficult to peel but readily softened by cooking. The skins vary in color from dark brown to light ...