Lonchocarpus violaceus
COMMON NAME  | West Indian lilac,
  Spanish ash, and lancepod  | 
TYPE  | Tree  | 
FAMILY  | Fabaceae  | 
NOTES  | Evergreen tree with a
  fast-growing, dense canopy. Produces lilac-fragrant, lavender, showy flowers
  during the late summer/fall. Produces long, slender, seed pods. Typically
  25-35ft in height. The leaves are
  reported to contain high concentrations of the poison Rotenone, a commonly
  used organic insecticide. They have a history of use by native people as a
  fish poison and are a potential source of compounds for the manufacture of
  Biopesticides.  | 
GEOGRAPHIC REGION  | Eastern Caribbean and northern parts
  of South America  | 
NATIVE HABITAT  | Dry limestone hills.
  Forests in calcareous soils with outcropping rocks  | 
WEB SOURCES  |