The use of medicinal plants by the Yanomami Indians of Brazil, Part II

The results of ethnobotanical fieldwork among two Yanomami communities are presented, and the knowledge of medicinal plants and fungi among those communities is discussed in the light of recent evidence that the Yanomami possess, contrary to previous assumptions, an extensive pharmacopoeia. In addition to the 113 species already known to be used by the group, a further 85 species are documented. Twenty-three species are named and discussed in detail. Considerable overlap is found between the uses of medicinal species by the upland Yanomami and those of the lowland Yanomami, but considerable differences are also apparent. The new data raise the currently recorded total to a level comparable with or greater than that recorded among other Amazonian indigenous peoples. Many of these plants are used in the same way by other indigenous and non-indigenous groups, supporting the hypothesis that their use is based on pharmacological activity. The origins and significance of this knowledge are discussed, with particular reference to the use of plants in the treatment of malaria.