Which Fagales plants produce commercially important edible nuts?

Several plants within the order Fagales are significant sources of commercially important edible nuts. These include:

• Chestnuts (Castanea): The European chestnut (Castanea sativa) and Chinese chestnut (C. mollissima) are economically important crops.1
• Hazelnuts (Corylus): Also known as filberts, these are produced by the genus Corylus. C. avellana is the primary source of most commercial nuts, with a significant portion of the global crop produced in Turkey.1
• Walnuts (Juglans): The English or Persian walnut (J. regia) is widely grown for commercial production. While botanically classified as drupes, their edible seeds are commonly referred to as nuts.2
• Pecans (Carya): The pecan (Carya illinoinensis) is a member of the Juglandaceae family and is in high demand for its edible nuts.1

Additionally, while not always considered major commercial crops, the nuts of various Lithocarpus and Castanopsis species serve as food sources in China and Southeast Asia, and acorns from Quercus (oaks) have historically been used for food and animal feed.1