''Dioscorea cayenensis'' is a species of yam in the genus '' Dioscorea'' that is a widely consumed West African domesticated crop. ''

Dioscorea rotundata ''Dioscorea cayenensis'' subsp. ''rotundata'', commonly known as the white yam, West African yam, Guinea yam, or white ñame, is a subspecies of yam native to Africa. It is one of the most important cultivated yams. Kokoro is one of its most im ...

'' is sometimes treated as a subspecies, and sometimes also as a separate species. Common names include Guinea yam, yellow yam, and yellow Guinea yam. It may be a

triploid Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains ...

hybrid between the cultivated '' D. rotundata'' and the wild '' D. burkilliana''.

References

cayenensis Yams (vegetable) Flora of West Tropical Africa Crops originating from Africa {{monocot-stub