There are two types of cassava, the bitter and the sweet. Both are widely used in Jamaica and are edible. Cassava leaves can be steamed and eaten as a vegetable. Medicinal and other uses: a.Freshly cut cassava can be applied to snakebites, boils and external ulcers to promote healing. b.It can also be grated and applied as a poultice for eczema and abscesses. c.The fresh leave applied to the head will relieve headaches.