The Acai or Assai Palm is native and/or planted throughout the Neotropics. The fruit are edible and the roots medicinal. Photo from the Colombian Amazon.
Description: Edible fruit of the Acai Palm, common in the Amazon Basin. Date: 6 January 2012, 22:02. Source: Euterpe precatoria. Author: Dick Culbert from Gibsons, B.C., Canada.