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Taxon: Pachyrhizus tuberosus (Lam.) Spreng.

Genus: Pachyrhizus
Family: Fabaceae (alt.Leguminosae)
Subfamily: Faboideae
Tribe: Phaseoleae
Subtribe: Glycininae
Nomen number: 26290
Place of publication: Syst. veg. 4(2):281. 1827
Link to protologue:
Name Verified on: 28-Oct-1988 by ARS Systematic Botanists. Last Changed: 06-Sep-2002
Species priority site is: Plant Genetic Resources Conservation Unit, Griffin, GA (S9)
Accessions: 6 (0 active, 0 available) in National Plant Germplasm System (GoogleMap)


Common names:

Economic Importance:

  • Human food: starch; vegetable; vegetable

Distributional Range:


    Southern America
    • WESTERN SOUTH AMERICA: Ecuador (also prob. escaped/introduced)


    Southern America
    • South America


  1. Adams, C. Flowering plants of Jamaica (F Jam)
  2. Bernal, R., S. R. Gradstein & M. Celis Catálogo de plantas y líquenes de Colombia (L Colombia online)
  3. Delêtre, M. et al. 2017. Ecotypic differentiation under farmers' selection: Molecular insights into the domestication of Pachyrhizus Rich. ex DC. (Fabaceae) in the Peruvian Andes Evol. Applications 10:498-513.
  4. Duke, J. A. Handbook of legumes of world economic importance (Leg WorldEc)
  5. Encke, F. et al. Zander: Handwörterbuch der Pflanzennamen, 13. Auflage (Zander ed13)
  6. Food and Agriculture Organization of the United Nations (FAO) 2010. Ecocrop (on-line resource). (Ecocrop)
  7. Grüneberg, W. J. et al. 2003. A new yam bean (Pachyrhizus spp.) interspecific hybrid Genet. Resources Crop Evol. 50:757-766.
  8. Liberty Hyde Bailey Hortorium Hortus third. (Hortus 3)
  9. Liogier, H. A. & L. F. Martorell Flora of Puerto Rico and adjacent islands: a systematic synopsis. (F PR)
  10. Macbride, J. F. et al., eds. Flora of Peru (F Peru)
  11. Maréchal, R. et al. 1978. Étude taxonomique d'un groupe complexe d'espèces des genres Phaseolus et Vigna (Papilionaceae) sur la base données morphologiques et polliniques, traitées par l'analyse informatique (Boissiera) 28:249.
  12. Markle, G. M. et al., eds. Food and feed crops of the United States, ed. 2 (Food Feed Crops US)
  13. National Academy of Sciences Tropical legumes: resources for the future (Trop Leg)
  14. Oré Balbin, I. et al. 2007. Review of the Pachyrhizus tuberosus (Lam.) Spreng. Cultivar groups in Peru Pl. Genet. Resources Newslett. 151:1-11.
  15. Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource). (Pl Names)
  16. Ramos-de-la-Peña, A. M. et al. 2013. Advances and perspectives of Pachyrhizus spp. in food science and technology Trends Food Sci. Technol. 29:44-54.
  17. Rehm, S. Multilingual dictionary of agronomic plants (Dict Rehm)
  18. Sørensen, M. 1988. A taxonomic revision of the genus Pachyrhizus (Fabaceae-Phaseoleae) Nordic J. Bot. 8:185.
  19. Sørensen, M. 1990. Observations on distribution, ecology and cultivation of the tuber-bearing legume genus Pachyrhizus Rich. ex DC. Agric. Univ. Wageningen Pap. 90-3:7.
  20. Sørensen, M. et al. 1997. Status of the South American tuberous legume Pachyrhizus tuberosus (Lam.) Spreng. Biodivers. & Conservation 6:1581-1625.
  21. Soukup, J. Vocabulario de los nombres vulgares de la flora peruana. (Names Soukup)
  22. Tapia, C. & M. Sørensen 2003. Morphological characterization of the genetic variation existing in a Neotropical collection of yam bean, Pachyrhizus tuberosus (Lam.) Spreng. Genet. Resources Crop Evol. 50:681-692.

Check other web resources for Pachyrhizus tuberosus (Lam.) Spreng. :

  • TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
  • ILDIS: International Legume Database & Information Service
  • Mansfeld: Mansfeld's World Databas 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.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.


  • Seed: U.S. National Seed Herbarium image

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2019. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?26290. Accessed 25 May 2019.