The diverse uses of fish-poison plants in northwest Guyana
2000
Andel, T. van
Although prohibited by law, fish poison plants are still widely used by indigenous tribes in Guyana. The latest ethnobotanical collections date from the first half of the 20th century and, from recent anthropological studies, it cannot be deduced whether the same species are still used today. The present study attempts to clarify the taxonomy and ethnobotany of the fish poisons, in particular those containing rotenone, currently used by Amerindians in northwest Guyana. Specimens were collected from 11 species known to be ichthyotoxic, both from wild and cultivated sources. It was found that fish poisons not only serve as a quick method of providing food in times of shortage, but also play an important role in magic rituals and traditional medicine. Particularly striking was the use of Lonchocarpus spp. and Tephrosia sinapou in the treatment of cancer and AIDS. Further ethnobotanical and pharmacological research should focus on the medicinal applications of rotenone-yielding plants.
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