Dioscorea cayenensis subsp. rotundata | |
---|---|
White yam | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Dioscoreales |
Family: | Dioscoreaceae |
Genus: | Dioscorea |
Species: | |
Subspecies: | D. c. subsp. rotundata
|
Trinomial name | |
Dioscorea cayenensis subsp. rotundata |
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]
Its wild progenitor is Dioscorea praehensilis [1] and possibly also D. abyssinica (by hybridization). [4] Domestication occurred in West Africa, along the south-facing Atlantic coast. There is insufficient documentation and as of 2009 [update] insufficient research to determine how long ago that occurred. [5]
D. c. subsp. rotundata is grown in West Africa, including countries such as Ivory Coast, Ghana and Nigeria. [6]
Blench (2006) reconstructs the tentative Proto-Niger-Congo (i.e., the most recent common ancestor of the Niger-Congo languages) root -ku for D. rotundata. [1]
Dioscorea cayenensis subsp. rotundata | |
---|---|
White yam | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Dioscoreales |
Family: | Dioscoreaceae |
Genus: | Dioscorea |
Species: | |
Subspecies: | D. c. subsp. rotundata
|
Trinomial name | |
Dioscorea cayenensis subsp. rotundata |
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]
Its wild progenitor is Dioscorea praehensilis [1] and possibly also D. abyssinica (by hybridization). [4] Domestication occurred in West Africa, along the south-facing Atlantic coast. There is insufficient documentation and as of 2009 [update] insufficient research to determine how long ago that occurred. [5]
D. c. subsp. rotundata is grown in West Africa, including countries such as Ivory Coast, Ghana and Nigeria. [6]
Blench (2006) reconstructs the tentative Proto-Niger-Congo (i.e., the most recent common ancestor of the Niger-Congo languages) root -ku for D. rotundata. [1]