The largest commonly eaten nut is the brazil nut. The 4-5cm nuts grow on one of the largest species of rainforest tree, which reaches about 30–45-m tall and 1–2 m in diameter. The nuts are grown in coconut-like shells that weigh approximately 4.5-lb and contain up to two dozen brazil nuts. The coco de mer, the fruit of a palm tree grown in the Seychelles, is usually considered to be the largest nut in the world. Also grown in a coconut-like shell, the mature fruit can reach up to 65-lbs and contains several seeds, which are also the world's largest.
The rest of the world's largest nuts tend to be of the inedible variety. The world's largest pecan, for example, is located in Brunswick, Missouri and is 7-ft. high. x 12-ft. long, and weighs about 12,000-lbs. The world's largest peanut is in Ashburn, Georgia