The plant is not known in the wild, but populations of wild Oxalis species that bear smaller tubers are known from four areas of the central Andean region. Oca was introduced to Europe in 1830 as a competitor to the potato, and to New Zealand as early as 1860.
https://en.wikipedia.org/wiki/Oxalis_tuberosa
Print All Open All Close All. The OCA2 gene (formerly called the P gene) provides instructions for making a protein called the P protein. This protein is located in melanocytes, which are specialized cells that produce a pigment called melanin. Melanin is the substance that gives skin, hair, and eyes their color. Melanin is also found in the light-sensitive tissue at the back of the eye (the retina), where it plays a role in normal vision. Although the exact function of the P protein is unknown, it is essential for normal pigmentation and is likely involved in the production of melanin.
https://ghr.nlm.nih.gov/gene/OCA2
Oca, Oxalis Tuberosa or New Zealand Yam, ranges in colour from a dark plum to cream. A food staple of the ancient Incas, it has been grown for thousands of years. Oca grows approximately 30 cm high and has attractive clover shaped leaves. Autumn frosts will cause foliage die back, signalling time to harvest.
http://yelwekfarmoca.com/our-oca/what-is-oca-4/
This oca is a tuberous root, of an oval shape and pale red colour, but white inside. Popular Adventure Tales Mayne Reid. The oca (Oxalis tuberosa) is an oval-shaped root; the skin pale red, and the inside white.
http://www.dictionary.com/browse/oca
Oca is very disease resistant, though it doesn’t like boggy ground. Just save a few of the biggest and best Oca harvested to replant next spring. Store tubers that you want to plant next year in peat moss, sawdust or dry sand in a dark place. A small pea sized tuber can yield tubers up to 10 to 12 cms in length. The first year we grew Oca we purchased approximately 5 pea sized tubers and obtained a generous 8kg yield. Oca is a real contributor to self-sustainability. Tuber sizes ranged from pea size to 10 to 12 cms.
http://yelwekfarmoca.com/our-oca/what-is-oca-4/
The basins of these two rivers are separated by the oca or Idubeda mountains, which cross the centre of the province. This oca is a tuberous root, of an oval shape and pale red colour, but white inside. The oca (Oxalis tuberosa) is an oval-shaped root; the skin pale red, and the inside white. Travels in Peru, on the Coast, in the Sierra, Across the Cordilleras and the Andes, into the Primeval Forests J. J. von Tschudi. On February 10, a dove (the male) was observed building a nest in a large banyan tree at oca Point.
http://www.dictionary.com/browse/oca
In New Zealand, oca has become a popular table vegetable and is simply called yam or New Zealand yam (although not a true yam). It is now available in a range of colours, including yellow, orange, pink, apricot, and the traditional red.
https://en.wikipedia.org/wiki/Oxalis_tuberosa
From Wikipedia, the free encyclopedia. Oxalis tuberosa (Oxalidaceae) is a perennial herbaceous plant that overwinters as underground stem tubers. These tubers are known as uqa in Quechua, Hispanicized oca, as New Zealand yam and a number of other alternative names. The plant was brought into cultivation in the central and southern Andes for its tubers, which are used as a root vegetable.
https://en.wikipedia.org/wiki/Oxalis_tuberosa
Oca can be used as a potato substitute. The skins of Oca are thin, like new potatoes, and do not need to be removed to cook. Oca can be used in cooking similarly to the potato, but is sweeter. The Oca tubers become sweeter when exposed to sunlight for a few days after harvest (protect from frost). There is no danger of Oca ‘going green’, as Oca is unrelated to the potato.
http://yelwekfarmoca.com/our-oca/what-is-oca-4/
This oca is a tuberous root, of an oval shape and pale red colour, but white inside. The oca (Oxalis tuberosa) is an oval-shaped root; the skin pale red, and the inside white. On February 10, a dove (the male) was observed building a nest in a large banyan tree at oca Point. He received his surname from the Via del oca, which contained the residence of his obscure parents.
http://www.dictionary.com/browse/oca
what is oca#
Oca is a tuberous root, of an oval shape and pale red colour, but white inside. The Oracle Certified Associate is a tuberous root and of an oval shape and pale red colour but white inside.