Dioscorea_japonica References

Dioscorea japonica
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	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, Dioscorea japonica is known as yě shānyào ( 野山藥) which translates to English as "wild Chinese yam" or simply "wild yam".^{[
citation needed]} Another name is Rìběn shǔyù ( 日本薯蕷; literally "Japanese yam").^[3]

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.^[5]

Varieties

Several formal botanical varieties have been proposed. Four are accepted:^[2]^[3]

Dioscorea japonica var. japonica - Japan (Ryukyu, Bonin), Korea, Taiwan, China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Zhejiang)
Dioscorea japonica var. nagarum Prain & Burkill - India (Assam)
Dioscorea japonica var. oldhamii R.Knuth - China (Guangdong, Guangxi), Taiwan
Dioscorea japonica var. pilifera C.T.Ting & M.C.Chang - China (Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang)

Uses

In Japanese cuisine, both the Japanese yam and the introduced Chinese yam are used interchangeably in dishes and recipes.^[6]

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.
^ ^a ^b Kew World Checklist of Selected Plant Families
^ ^a ^b ^c "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
^ Itoh, Makiko (2015-07-15). "'Yamaimo': Japan's slimy mountain yam". The Japan Times. Retrieved 2019-06-07.

[1] 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.

[asdfasdfaasfd-2] Kew World Checklist of Selected Plant Families

[ChinaFlora-3] "Dioscorea japonica in Flora of China @ efloras.org". Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 21 January 2012.

[FloraJapan-4] 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.

[5] 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

[japantimes-15-07-15-6] Itoh, Makiko (2015-07-15). "'Yamaimo': Japan's slimy mountain yam". The Japan Times. Retrieved 2019-06-07.

[1]

[2]

[3]

[4]

[5]

[6]