Commonly known as native or country potato in Africa and called "Chinese potato" in India. It is a perennial herbaceous plant of the mint family native to tropical Africa. It is cultivated for its edible tubers primarily in West Africa.
The egg-shaped tubers of the native potato appear very similar to the unrelated true potato, though they are smaller than modern commercial varieties. They are typically boiled but may also be roasted, baked or fried. Their flavor is bland.
Plectranthus rotundifolius - Wikipedia, the free encyclopedia http://buff.ly/1Uiqs6T
15 Native Potatoes | Lost Crops of Africa: Volume II: Vegetables | The National Academies Press http://buff.ly/23jYmIY
Available for purchase here:
Ebay: Plectranthus rotundifolius - African Potato Mint - 1 Live Plant! http://buff.ly/24ZhR8V
Wellspring gardens: African Potato Mint - Plectranthus rotundifolius http://buff.ly/1UEqUKY