Dioscorea japonica
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D. japonica
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| Dioscorea japonica Thunb. 1784
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Dioscorea japonica (yamaimo, Japanese mountain yam) is a type of yam (Dioscorea) native to Japan (including Ryukyu and Bonin Islands), Korea, China (including Taiwan), and Assam.[1][2]
Dioscorea japonica is used for food. Jinenjo, also called wild yam is related variety of Japanese yam that is used as an ingredient in soba noodles.
Contents
Names
In Japanese, it is known as yamaimo [3] (literally mountain yam; kanji: 山芋 hiragana: やまいも).
Jinenjyo (literally wild yam; kanji: 自然薯; hiragana: じねんじょ) is another kind of Dioscorea japonica, which is native to fields and mountains in Japan.
In Chinese it is known as Rìběnshǔyù (literally Japanese Yam; 日本薯蓣[2])
In Korean it is known as cham ma 참마, as well as dang ma 당마.[citation needed]
Chemistry
Dioscorea japonica contains the antimutagenic compounds eudesmol and paeonol.[4]
Varieties
Several formal botanical varieties have been proposed. Four are accepted:[1][2]
- Dioscorea japonica var. japonica - Japan, Korea, Ryukyu, Bonin, Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Zhejiang
- Dioscorea japonica var. nagarum Prain & Burkill - Assam
- Dioscorea japonica var. oldhamii R.Knuth - Guangdong, Guangxi, Taiwan
- Dioscorea japonica var. pilifera C.T.Ting & M.C.Chang - Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang
References
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- ↑ 1.0 1.1 Kew World Checklist of Selected Plant Families
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Antimutagenic Activity of (+)-β-Eudesmol and Paeonol from Dioscorea japonica. Mitsuo Miyazawa, Hideo Shimamura, Sei-ichi Nakamura and Hiromu Kameoka, J. Agric. Food Chem., 1996, 44 (7), pages 1647–1650, doi:10.1021/jf950792u
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