|Better Farming Series 16. Roots and Tubers (FAO, 1977, 58 p.)|
|Tania and taro|
Some varieties of tania have an aerial stem. It may reach 1 metre in length in the adult plant.
The leaf blade of tania is divided by a notch which makes the leaf arrow- shaped.
The leaf-stalk is attached to the edge of the leaf at the middle of the notch.
The leaf is bigger than the taro leaf; it is more sheath- like, thicker, stiffer and more shiny. It is permeated with a sort of wax.
The leaf-stalks are long, stiff and thick. They are flattened at the part attached to the leaf. The leaf-stalk of tania is a direct continuation of the midrib.
As a rule, the underground stems and tubers are well developed. They weigh between 1 and 5 kilogrammes and are rich in starch.