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Summary

Cashew is the common name of a tropical evergreen tree Anacardium occidentale, in the family Anacardiaceae. It is the source of the cashew nut and the cashew apple. The tree can grow as tall as 14 meters (46 feet).
Cashews are native to tropical South America. Portuguese explorers encountered them in the 16th century and spread them to India and other tropical regions of the world. The dwarf cultivars, growing up to 6 m (20 ft), are the most profitable, maturing sooner and producing greater yields. In 2023, 3.9 million tons of cashew nuts were harvested globally, led by the Ivory Coast and India.
The nut shell and raw seed are toxic, but the nut is edible once shelled and roasted or steamed. Treated cashews are eaten on their own as a snack, used in recipes, or processed into cashew cheese or cashew butter. The cashew apple, an accessory fruit, is a light reddish to yellow fruit, the pulp and juice of which can be processed into a sweet, astringent fruit drink or fermented and distilled into liquor. Additionally, derivatives from the shell are used in products such as varnishes, lubricant, and paints.

Description

The cashew tree is large and evergreen, growing to 14 metres (46 feet) tall, with a short, often irregularly shaped trunk. The leaves are spirally arranged, leathery textured, elliptic to obovate,

The fruit of the cashew tree is an accessory fruit (sometimes called a pseudocarp or false fruit). What appears to be the fruit is an oval or pear-shaped structure, a hypocarpium, that develops from the pedicel and the receptacle of the cashew flower. Called the cashew apple, better known in Central America as marañón, it ripens into a yellow or red structure about 5–11 cm (2–4+1⁄4 in) long.

The true fruit of the cashew tree is a kidney-shaped or boxing glove-shaped drupe that grows at the end of the cashew apple. The drupe first develops on the tree and then the pedicel expands to become the cashew apple. The drupe becomes the true...