Piscidia

Piscidia is a genus of flowering plants in subfamily Faboideae of the family Fabaceae. It includes seven species of trees, and rarely shrubs, native to the tropical Americas, ranging from northern Mexico and Florida through Central America and the Caribbean to Venezuela and Peru. Typical habitats include seasonally-dry tropical forest, woodland, and bushland, often on rocky hills, with some species restricted to limestone substrates. The generic name is derived from the Latin words piscis, meaning "fish," and caedo, meaning "to kill." It refers to the use of extracts from the plant to poison fish....read more on Wikipedia.