Cyphia sp., Cyphia digitata.

Botanical name: 

Cyphia sp.? Campanulaceae.

South Africa. The Hottentots are said to eat the tuberous roots of at least one species of these herbaceous, twining plants.

Cyphia digitata Willd.

South Africa. The roots are bulbous, esculent, and fleshy.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.