Wild populations of Manihot esculenta was primarily reported primarily in west central Brazil and eastern Peru (Allem et al 1992). Allem (1994) proposed that Manihot esculenta ,the modern cultivated cassava originated directly from the extant wild subspecies M. esculenta subsp. Flabellifolia. A detailed molecular analysis by Roa et al (1997) indicated that cassava was domesticated specifically from populations of M. esculenta subsp . This wild subspecies is found in forest patches in the transition zone between the cerrado vegetation of the Brazilian shield plateau and the lowland rainforest of the Amazon basin, where it grows as a clambering understory shrub or treelet.
