Macrotyloma geocarpum
Encyclopedia
Macrotyloma geocarpum, also known as the geocarpa groundnut, Hausa groundnut, or Kersting's groundnut, is an herb
Herb
Except in botanical usage, an herb is "any plant with leaves, seeds, or flowers used for flavoring, food, medicine, or perfume" or "a part of such a plant as used in cooking"...

aceous annual plant
Annual plant
An annual plant is a plant that usually germinates, flowers, and dies in a year or season. True annuals will only live longer than a year if they are prevented from setting seed...

 and a crop of minor economic importance in Sub-Saharan Africa
Sub-Saharan Africa
Sub-Saharan Africa as a geographical term refers to the area of the African continent which lies south of the Sahara. A political definition of Sub-Saharan Africa, instead, covers all African countries which are fully or partially located south of the Sahara...

, tolerant of drought, with a growth habit similar to that of the peanut
Peanut
The peanut, or groundnut , is a species in the legume or "bean" family , so it is not a nut. The peanut was probably first cultivated in the valleys of Peru. It is an annual herbaceous plant growing tall...

.
Yields of 500kg/ha in dry seed

source : Plant resources of tropical Africa. Cereals and pulses. Plant resources of tropical Africa (PROTA). Backhuys Publishers. Eds. Brink, Grubben, etc. 2006. ISBN 9057821702 p. 100. Cites Leung, Busson & Jardin 1968.


Early 20th century, west Africa:


Following the construction of the Nigerian railway system, which extended from Lagos in 1896 to Ibadan in 1900 and Kano in 1911, the Hausa of northern Nigeria became major producers of groundnuts. They surprised the British, who had expected the Hausa to turn to cotton production. However, the Hausa had sufficient agricultural expertise to realize cotton required more labor and the European prices offered for groundnuts were more attractive than those for cotton. "Within two years the peasant farmers of Hausaland were producing so many tonnes of groundnuts that the railway was unable to cope with the traffic. As a result, the European merchants in Kano had to stockpile sacks of groundnuts in the streets." (Shillington 338). This is a great example of the African initiative taken by peasant producers to adapt to a cash economy.

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