Did you know that Brazil nuts of Bertholletia excelsa plant are perhaps the richest dietary source of selenium?
Brazil nut tree - Bertholletia excelsa
The Brazil nut (Bertholletia excelsa) is a South American tree in the family
Lecythidaceae, and also the name of the tree's commercially harvested edible
The Brazil nut tree is the only species in the monotypic genus Bertholletia. 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, Tapajos, and the Orinoco. The genus is named after the French chemist Claude Louis
The Brazil nut is a large tree, reaching 50 m (160 ft) tall and with a trunk 1 to 2 m (3.3 to 6.6
ft) in diameter,
making it among the largest of trees in the Amazon rainforests. It may live for 500 years or
more, and according to some authorities often reaches an age of 1,000 years. The stem is straight and commonly without branches for well over half the tree's
height, with a large emergent crown of long branches spreading over 30 metres (100
feet) in diameter, above the surrounding canopy of other trees.