Dioscorea japonica
Dioscorea japonica | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Monocots |
Order: | Dioscoreales |
Family: | Dioscoreaceae |
Genus: | Dioscorea |
Species: | D. japonica |
Binomial name | |
Dioscorea japonica Thunb. 1784 | |
Dioscorea japonica, known as East Asian mountain yam,[1] yamaimo, or Japanese mountain yam, is a type of yam (Dioscorea) native to Japan (including Ryukyu and Bonin Islands), Korea, China, Taiwan, and Assam.[2][3]
Dioscorea japonica is used for food. Jinenjo, also called the wild yam, is a related variety of Japanese yam that is used as an ingredient in soba noodles.
Names
In Japanese, it is known as yamaimo (山芋) "mountain yam".[4]
Jinenjo (自然薯) "wild yam" 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[3])
In Korean it is known as cham ma 참마, as well as dang ma 당마.
Chemistry
Dioscorea japonica contains the antimutagenic compounds eudesmol and paeonol.[5]
Varieties
Several formal botanical varieties have been proposed. Four are accepted:[2][3]
- 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
- ↑ English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 442. ISBN 978-89-97450-98-5. Retrieved 4 January 2017 – via Korea Forest Service.
- 1 2 Kew World Checklist of Selected Plant Families
- 1 2 3 "Dioscorea japonica in Flora of China @ efloras.org:". Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 21 January 2012.
- ↑ Ohwi, Jisaburo (1965). Meyer, Frederick G.; Walker, Egbert H., eds. Flora of Japan. Washington, DC: Smithsonian Institution. p. 314. OCLC 742327504. Retrieved 21 January 2012.
- ↑ 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