|Better Farming Series 16 - Roots and Tubers (FAO - INADES, 1977, 58 p.)|
|Description of the plant|
Varieties of sweet potato differ greatly in the number, shape and size of their tubers and in the color of the peel and flesh of the tubers.
Sweet potatoes may be round or elongated. In colour they are white, yellow, red or violet, with soft or firm flesh. They may weigh between 0.3 and 3 kilogrammes.