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  GRIN Taxonomy for Plants
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Taxon: Dioscorea polystachya Turcz.

Genus: Dioscorea
Family: Dioscoreaceae
Nomen number: 14241
Place of publication: Bull. Soc. Imp. Naturalistes Moscou 10(7):158. 1837
Name verified on: 24-Mar-2006 by ARS Systematic Botanists. Last updated: 24-Mar-2006
Species priority site is: Natl. Germplasm Repository - Miami (MIA).


Common names:

  • Chinese yam   (Source: World Econ Pl ) – English
  • Chinese-potato   (Source: Pl Book [as D. batatas]) – English
  • cinnamon-vine   (Source: Hortus 3 [as D. batatas]) – English
  • shan yao   (Source: Herbs Commerce [as D. batatas]) – Transcribed Chinese
  • shu yu   (Source: F ChinaEng ) – Transcribed Chinese
  • igname   (Source: Zander ed17 [as D. batatas]) – French
  • chinesische Yamswurzel   (Source: Zander ed17 [as D. batatas]) – German
  • naga-imo   (Source: F JapanOhwi [as D. batatas]) – Japanese Rōmaji
  • jams   (Source: Vara kulturvaxt namn ) – Swedish

Economic importance:

Distributional range:

    China: China - Anhui, Fujian, Gansu [e.], Guangdong [n.], Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi [s.], Shandong, Sichuan, Yunnan [n.], Zhejiang
    Eastern Asia: Japan - Hokkaido, Honshu, Kyushu, Shikoku; Korea; Taiwan

  • naturalized in temperate regions

  • cultivated in temperate regions




Check other web resources for Dioscorea polystachya Turcz.:

  • Flora of North America: Collaborative Floristic Effort of North American Botanists
  • PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
  • Flora of China: Online version from Harvard University
  • TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
  • Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.


  • Seed: U.S. National Seed Herbarium image
  • Check for additional images
  • Google Images Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: (07 October 2015)

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