White Guinea yam
Dioscorea rotundata
Major West African staple yam grown for its firm, white-fleshed tuber.
Family
Dioscoreaceae
Temperature
25-32°C (absolute 15-38°C)
Rainfall
1000-1500mm (absolute 800-3000mm)
Soil pH
6.4-6.7 (absolute 5.8-8.5)
Soil types
Deep friable well-drained loam.