The fruit is a large, woody, coconut-like capsule (technically a pyxidium) weighing up to 2 kg. It contains 10–25 triangular seeds, which are the commercially known "Brazil nuts". Ecology and Lifecycle
Species Report: Bertholletia excelsa (Brazil Nut) Bertholletia excelsa , commonly known as the , is a majestic and ecologically vital species native to the Amazon rainforest. It is the sole species in the genus Bertholletia and belongs to the family Lecythidaceae. Often referred to in Brazil as castanheira-do-Pará , it is one of the largest and longest-lived trees in the Amazon basin. Botanical Description bertholletia excelsa
Individuals are remarkably long-lived; some are estimated to be between 500 and 1,000 years old . The fruit is a large, woody, coconut-like capsule