Dioscorea_rotundata
Dioscorea cayenensis subsp. rotundata
Species of yam
Dioscorea cayenensis subsp. rotundata, commonly known as the white yam, West African yam,[1] Guinea yam, or white ñame, is a subspecies[2] of yam native to Africa. It is one of the most important cultivated yams.[3] Kokoro is one of its most important cultivars.
It is sometimes treated as separate species from Dioscorea cayenensis.[1]