 Among the plants include edible foods like the cashew, peppers, mangosteen and coconut, but often include inedible parts like the fruits, leaves, husk, bark.Neighboring nations like the Patamona of Guyana also use the cashew.There is growing interest in Brazilian medicine as the Amazon rainforest is the largest tropical forest in the world, and is home to immense biodiversity, including cures or treatments for many ailments.