The Brazil nut is a South American tree in the family Lecythidaceae, and also the name of the tree's commercially harvested edible seeds. It is native to the Guianas, Venezuela, Brazil, eastern Colombia, eastern Peru, and eastern Bolivia. It occurs as scattered trees in large forests on the banks of the Amazon River, Rio Negro, Tapajós, and the Orinoco. The Brazil nut is a large tree, reaching 50 m tall and with a trunk 1 to 2 m in diameter, making it among the largest of trees in the Amazon rainforests.
