Brazil nut
The brazil nut is a large tree, reaching 49 m tall and with a trunk 1.006 to 2 m in diameter, making it among the largest of trees in the Amazon rainforests. The stem is straight and commonly without branches for well over half the tree's height, with a large emergent crown of long branches above the surrounding canopy of other trees. The leaves are dry-season deciduous, alternate, simple, entire or crenate, oblong, 20 to 35 cm long and 10 to 15 cm broad. The flowers are small, greenish-white, in panicles 5 to 10 cm long; each flower has a two-parted, deciduous calyx, six unequal cream-colored petals, and numerous stamens united into a broad, hood-shaped mass.