Cassava, is an annual tropical andsubtropical trees of the family Euphorbiaceae. Tuber is widely known as a staple food-producing carbohydrates and leaves as a vegetable.
Cassava is a tuber or root length of trees with an average physical diameter 2-3 cm and 50-80 cm in length, depending on the type of cassava is planted. Tuber flesh is white or yellowish. Cassava tubers can not stand save even placed in the refrigerator. Symptoms of damage is marked by the release of a dark blue color due to formation of cyanide which is toxic to humans.
Cassava tubers are a source of energy rich carbohydrates but very poor in protein. A good source of protein actually present in cassava leaves because they contain the amino acid methionine.
This type of cassava Manihot esculenta first became known in South America and then developed in pre-history in Brazil and Paraguay. Modern forms of which have been cultivated species can be found growing wild in southern Brazil. Although the wild Manihot species there are many, all varieties of M. esculenta can be cultivated.