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Ulluco is one of the most widely grown and economically important root crops in the Andean region of South America, second only to the potato.[3] The tuber is the primary edible part, but the leaf is also used and is similar to spinach.[4] They are known to contain high levels of protein, calcium, and carotene. Ulluco was used by the Incas prior to the arrival of Europeans in South America.[5] The scrambling herbaceous plant grows up to 500mm high and forms starchy tubers below ground. These tubers are typically smooth and can be spherical or elongated. Generally they are a similar in size to the potato; however, they have been known to grow up to 15 cm long. Due to the brightly coloured waxy skin in a variety of yellows, pinks and purples, ullucu tubers are regarded as one of the most striking foods in the Andean markets.[6] Ullucus tuberosus has a subspecies, Ullucus tuberosus subsp. aborigineus, which is considered a wild type. While the domesticated varieties are generally erect and have a diploid genome, the subspecies is generally a trailing vine and has a triploid genome