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Bush yam

Dioscorea praehensilis

Also called Forest Yam, White Yam

Bush yam is a tropical African climbing yam grown for its starchy tuber, and it is the wild ancestor of two cultivated West African yams. It needs warm, humid conditions and a long growing season with a dry period to form its tuber.

Family
Dioscoreaceae (Dioscore family)
Grows as
Climber, Bulb
Light
Part shade, Bright indirect
Water
Water regularly during the rainy season and reduce watering once the dry season starts so the tuber can mature.
Soil
Loose, deep, well-drained loam or sandy loam rich in organic matter.
Temperature
22–32 °C; protect below 15 °C
How easy
Moderate
Edible
Yes, some parts
Native range
Trop. Africa
Climate
wet tropical

About

Dioscorea praehensilis is a species of yam in the genus Dioscorea native to Africa. It is the wild progenitor of the West African domesticated crops Dioscorea rotundata and Dioscorea cayennensis. It is a liana with an edible tuber root found in African rainforests and seasonal tropical forests. The roots reach their maximum starch reserves during the dry season. The species renews its stems every year at the start of the rainy season.

Other Dioscorea plants

Dioscorea abyssinica · Water yam · Air yam · Yellow guinea yam · Black Bryony · Yam · Elephant's Foot · Wild Yam · Elephant's Foot Yam · Lesser yam · Yam · Dioscorea fordii

Text excerpted from the Wikipedia article Dioscorea praehensilis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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