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

Dioscorea rotundata is sometimes treated as a subspecies, and sometimes also as a separate species.

[1] Common names include Guinea yam, yellow yam, and yellow Guinea yam.

It may be a triploid hybrid between the cultivated D. rotundata and the wild D.

This Dioscoreales-related article is a stub.