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Dioscorea polystachya or Chinese yam (simplified Chinese: 山药; traditional Chinese: 山藥), also called cinnamon-vine, [2] is a species of flowering plant in the yam family. It is sometimes called Chinese potato or by its Korean name ma. [3] [2] It is also called huaishan in Mandarin and wàaih sāan in Cantonese.
Flowers Tubers, with a ruler for scale. Coleus rotundifolius, synonyms Plectranthus rotundifolius and Solenostemon rotundifolius, [1] commonly known as native potato or country potato in Africa and called Chinese potato in India, is a perennial herbaceous plant of the mint family (Lamiaceae) native to tropical Africa.
The total production of potatoes in China was over 70,000,000 tonnes (77,000,000 tons), or more than 22 percent of the global potato production, [5] making China the largest potato producer in the world. [1] [11] [12] However, the average yield of potatoes in China was 14.35 tons/ha, compared to the global mean of 16.74 tons/ha. [5]
Aerial or potato yams (D. bulbifera) have antinutritional factors. In Asia, detoxification methods, involving water extraction, fermentation, and roasting of the grated tuber, are used for bitter cultivars of this yam. The bitter compounds in yams also known locally as air potato include diosbulbin and possibly saponins, such as diosgenin. [31]
These potatoes also have coloured skin, but many varieties with pink or red skin have white or yellow flesh, as do the vast majority of cultivated potatoes. The yellow colour, more or less marked, is due to the presence of carotenoids. Varieties with coloured flesh are common among native Andean potatoes, but relatively rare among modern varieties.
The potato (/ p ə ˈ t eɪ t oʊ /) is a starchy tuberous vegetable native to the Americas that is consumed as a staple food in many parts of the world. Potatoes are underground tubers of the plant Solanum tuberosum, a perennial in the nightshade family Solanaceae. Wild potato species can be found from the southern United States to southern Chile.
Dioscorea bulbifera (commonly known as the air potato, air yam, bitter yam, cheeky yam, potato yam, [2] aerial yam, [3] and parsnip yam [4]) is a species of true yam in the yam family, Dioscoreaceae. It is native to Africa, Asia and northern Australia. [ 1 ]
Dioscorea alata – also called ube (/ ˈ uː b ɛ,-b eɪ /), ubi, purple yam, or greater yam, among many other names – is a species of yam (a tuber).The tubers are usually a vivid violet-purple to bright lavender in color (hence the common name), but some range in color from cream to plain white.